{"id":2882,"date":"2026-09-08T13:06:42","date_gmt":"2026-09-08T13:06:42","guid":{"rendered":"https:\/\/voltnexpower.com\/?page_id=2882"},"modified":"2026-09-19T12:37:12","modified_gmt":"2026-09-19T12:37:12","slug":"bk-series-industrial-control-transformer","status":"publish","type":"page","link":"https:\/\/voltnexpower.com\/es_ec\/bk-series-industrial-control-transformer\/","title":{"rendered":"BK Series Industrial Control Transformer"},"content":{"rendered":"<div class=\"banner has-hover\" id=\"banner-381637489\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                        <div class=\"overlay\"><\/div>            \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-1024059168\" class=\"text-box banner-layer x5 md-x5 lg-x0 y50 md-y50 lg-y95 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n\t<div id=\"text-4003324682\" class=\"text\">\n\t\t\n<h2 data-path-to-node=\"2\"><b data-path-to-node=\"2\" data-index-in-node=\"0\">BK CONTROL<\/b><\/h2>\n<h2 data-path-to-node=\"2\"><span style=\"font-size: 150%; color: #00a859;\"><b data-path-to-node=\"2\" data-index-in-node=\"0\"> TRANSFORMER<\/b><\/span><\/h2>\n<h2 data-path-to-node=\"2\"><span style=\"font-size: 150%;\"><b data-path-to-node=\"2\" data-index-in-node=\"0\"> MANUFACTURER<\/b><\/span><\/h2>\n<h3><span style=\"font-size: 120%;\"><strong>500VA\u2013100KVA INDUSTRIAL CONTROL &amp; AUXILIARY POWER SOLUTIONS<\/strong><\/span><\/h3>\n<p><strong><span style=\"font-size: 140%;\">VoltNex Power manufactures high-performance BK Series control transformers for machine tools, CNC machines, industrial control panels, automation equipment, electrical systems and auxiliary power applications. With rated capacities from 500VA to 100KVA and multiple input and output voltage options, our BK control transformers provide reliable voltage conversion, electrical isolation and stable control power. Custom voltage, frequency, winding, insulation and mounting configurations are available for OEM, ODM, wholesale and industrial applications worldwide.<\/span><\/strong><br \/>\n\t\t\n<style>\n#text-4003324682 {\n  text-align: left;\n}\n<\/style>\n\t<\/div>\n\t\n<div class=\"row\"  id=\"row-896762461\">\n\n\t<div id=\"col-1317768762\" class=\"col medium-4 small-12 large-4\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<a href=\"https:\/\/voltnexpower.com\/es_ec\/contact\/\" class=\"button primary is-xlarge\"  style=\"border-radius:10px;\">\n    <span>GET A QUOTE \u2192<\/span>\n  <\/a>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1878136476\" class=\"col medium-5 small-12 large-5\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-2108981297\" class=\"col medium-3 small-12 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1024059168 {\n  width: 63%;\n}\n#text-box-1024059168 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-381637489 {\n  padding-top: 800px;\n  background-color: rgb(255, 255, 255);\n}\n#banner-381637489 .bg.bg-loaded {\n  background-image: url(https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Industrial-Control-Transformers-\u2013-BK-JBK-JMB-Series-for-Machine-Tools-Lighting-and-Industrial-Control-Applications.webp);\n}\n#banner-381637489 .overlay {\n  background-color: rgba(0, 0, 0, 0.663);\n}\n<\/style>\n  <\/div>\n\n\n\n  <div class=\"banner has-hover\" id=\"banner-973770004\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                                    \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-744895429\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n\n<div style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important; background-color: #001f3f !important; color: #ffffff !important; padding: 20px 10px !important; width: 100% !important; box-sizing: border-box !important; border-radius: 6px !important;\">\n<div style=\"display: flex !important; flex-wrap: wrap !important; justify-content: space-between !important; align-items: center !important; width: 100% !important; box-sizing: border-box !important; gap: 10px 0 !important;\">\n<p>        <!-- 1. BK Series Control Transformer --><\/p>\n<div style=\"flex: 1 1 150px !important; text-align: center !important; padding: 5px 8px !important; border-right: 1px solid rgba(255, 255, 255, 0.2) !important; box-sizing: border-box !important; min-width: 140px !important;\">\n<div style=\"font-size: 16px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; white-space: nowrap !important;\">BK Series<\/div>\n<div style=\"font-size: 13px !important; color: #b0c4de !important; line-height: 1.2 !important; white-space: nowrap !important; margin-top: 3px !important;\">Control Transformer<\/div>\n<\/p><\/div>\n<p>        <!-- 2. Voltage Options --><\/p>\n<div style=\"flex: 1 1 150px !important; text-align: center !important; padding: 5px 8px !important; border-right: 1px solid rgba(255, 255, 255, 0.2) !important; box-sizing: border-box !important; min-width: 140px !important;\">\n<div style=\"font-size: 16px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; white-space: nowrap !important;\">220V \/ 380V<\/div>\n<div style=\"font-size: 13px !important; color: #b0c4de !important; line-height: 1.2 !important; white-space: nowrap !important; margin-top: 3px !important;\">Custom V-Steps<\/div>\n<\/p><\/div>\n<p>        <!-- 3. Capacity Range --><\/p>\n<div style=\"flex: 1 1 150px !important; text-align: center !important; padding: 5px 8px !important; border-right: 1px solid rgba(255, 255, 255, 0.2) !important; box-sizing: border-box !important; min-width: 140px !important;\">\n<div style=\"font-size: 16px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; white-space: nowrap !important;\">500VA &#8211; 100kVA<\/div>\n<div style=\"font-size: 13px !important; color: #b0c4de !important; line-height: 1.2 !important; white-space: nowrap !important; margin-top: 3px !important;\">Capacity Range<\/div>\n<\/p><\/div>\n<p>        <!-- 4. Winding Material --><\/p>\n<div style=\"flex: 1 1 150px !important; text-align: center !important; padding: 5px 8px !important; border-right: 1px solid rgba(255, 255, 255, 0.2) !important; box-sizing: border-box !important; min-width: 140px !important;\">\n<div style=\"font-size: 16px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; white-space: nowrap !important;\">100% Full Power<\/div>\n<div style=\"font-size: 13px !important; color: #b0c4de !important; line-height: 1.2 !important; white-space: nowrap !important; margin-top: 3px !important;\">Copper \/ Al Options<\/div>\n<\/p><\/div>\n<p>        <!-- 5. Insulation System --><\/p>\n<div style=\"flex: 1 1 150px !important; text-align: center !important; padding: 5px 8px !important; border-right: 1px solid rgba(255, 255, 255, 0.2) !important; box-sizing: border-box !important; min-width: 140px !important;\">\n<div style=\"font-size: 16px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; white-space: nowrap !important;\">Class B \/ F \/ H<\/div>\n<div style=\"font-size: 13px !important; color: #b0c4de !important; line-height: 1.2 !important; white-space: nowrap !important; margin-top: 3px !important;\">CE &amp; ISO Certified<\/div>\n<\/p><\/div>\n<p>        <!-- 6. Service & Warranty --><\/p>\n<div style=\"flex: 1 1 150px !important; text-align: center !important; padding: 5px 8px !important; box-sizing: border-box !important; min-width: 140px !important;\">\n<div style=\"font-size: 16px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; white-space: nowrap !important;\">OEM \/ ODM Support<\/div>\n<div style=\"font-size: 13px !important; color: #b0c4de !important; line-height: 1.2 !important; white-space: nowrap !important; margin-top: 3px !important;\">3 Years Warranty<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-744895429 {\n  width: 100%;\n}\n#text-box-744895429 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-973770004 {\n  padding-top: 130px;\n  background-color: #001f3f;\n}\n<\/style>\n  <\/div>\n\n\n<div class=\"row\"  id=\"row-127584321\">\n\n\t<div id=\"col-2079860875\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div style=\"width: 100% !important; margin: 0 !important; padding: 0 !important; box-sizing: border-box !important; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important;\">\n<div style=\"display: flex !important; flex-wrap: wrap !important; justify-content: space-between !important; gap: 12px !important; width: 100% !important; box-sizing: border-box !important;\">\n<p>        <!-- \u5361\u7247 1: 20+ Years --><\/p>\n<div style=\"flex: 1 1 200px !important; background: #ffffff !important; border: 1px solid #d0d7de !important; border-radius: 8px !important; padding: 18px 14px !important; box-sizing: border-box !important; box-shadow: 0 4px 12px rgba(0, 31, 63, 0.06) !important; text-align: center !important;\">\n<div style=\"font-size: 26px !important; font-weight: 800 !important; color: #001f3f !important; line-height: 1.1 !important; white-space: nowrap !important;\">20+<\/div>\n<div style=\"font-size: 13px !important; font-weight: 600 !important; color: #333333 !important; line-height: 1.25 !important; margin-top: 4px !important;\">Years Manufacturing<br \/>Experience<\/div>\n<\/p><\/div>\n<p>        <!-- \u5361\u7247 2: 80+ Countries --><\/p>\n<div style=\"flex: 1 1 200px !important; background: #ffffff !important; border: 1px solid #d0d7de !important; border-radius: 8px !important; padding: 18px 14px !important; box-sizing: border-box !important; box-shadow: 0 4px 12px rgba(0, 31, 63, 0.06) !important; text-align: center !important;\">\n<div style=\"font-size: 26px !important; font-weight: 800 !important; color: #001f3f !important; line-height: 1.1 !important; white-space: nowrap !important;\">80+<\/div>\n<div style=\"font-size: 13px !important; font-weight: 600 !important; color: #333333 !important; line-height: 1.25 !important; margin-top: 4px !important;\">Countries Exported<br \/>Worldwide<\/div>\n<\/p><\/div>\n<p>        <!-- \u5361\u7247 3: 50,000+ Units --><\/p>\n<div style=\"flex: 1 1 200px !important; background: #ffffff !important; border: 1px solid #d0d7de !important; border-radius: 8px !important; padding: 18px 14px !important; box-sizing: border-box !important; box-shadow: 0 4px 12px rgba(0, 31, 63, 0.06) !important; text-align: center !important;\">\n<div style=\"font-size: 26px !important; font-weight: 800 !important; color: #001f3f !important; line-height: 1.1 !important; white-space: nowrap !important;\">50,000+<\/div>\n<div style=\"font-size: 13px !important; font-weight: 600 !important; color: #333333 !important; line-height: 1.25 !important; margin-top: 4px !important;\">Units Annual<br \/>Production Capacity<\/div>\n<\/p><\/div>\n<p>        <!-- \u5361\u7247 4: OEM & ODM --><\/p>\n<div style=\"flex: 1 1 200px !important; background: #ffffff !important; border: 1px solid #d0d7de !important; border-radius: 8px !important; padding: 18px 14px !important; box-sizing: border-box !important; box-shadow: 0 4px 12px rgba(0, 31, 63, 0.06) !important; text-align: center !important;\">\n<div style=\"font-size: 22px !important; font-weight: 800 !important; color: #001f3f !important; line-height: 1.1 !important; white-space: nowrap !important;\">OEM &amp; ODM<\/div>\n<div style=\"font-size: 13px !important; font-weight: 600 !important; color: #333333 !important; line-height: 1.25 !important; margin-top: 4px !important;\">Custom Engineering<br \/>&amp; Solutions<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n\n<div style=\"width: 100% !important; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important; color: #333333 !important; box-sizing: border-box !important; background-color: #ffffff !important; padding: 20px 0 !important;\">\n<p><!-- \u4e3b\u5bb9\u5668\uff1a\u5f3a\u5236 Table \u5e03\u5c40\u9501\u6b7b\u5de6\u53f3\u5206\u680f --><\/p>\n<div style=\"display: table !important; width: 100% !important; table-layout: fixed !important; border-spacing: 30px 0 !important;\">\n<p><!-- \u5de6\u4fa7\u6587\u672c\u680f --><\/p>\n<div style=\"display: table-cell !important; width: 38% !important; vertical-align: top !important; box-sizing: border-box !important;\">\n<h2 style=\"font-size: 28px !important; font-weight: bold !important; color: #000000 !important; margin: 0 0 16px 0 !important; line-height: 1.2 !important;\">About BK Series<\/h2>\n<p style=\"font-size: 15px !important; line-height: 1.6 !important; color: #555555 !important; margin: 0 0 14px 0 !important;\">The BK Series industrial control transformer is designed to provide stable and reliable control power for electrical machinery, automation equipment, machine tools, CNC systems and industrial control cabinets.<\/p>\n<p style=\"font-size: 15px !important; line-height: 1.6 !important; color: #555555 !important; margin: 0 0 14px 0 !important;\">It converts the available primary power supply into the required control voltage for contactors, relays, solenoid valves, PLC circuits, indicators and other control components.<\/p>\n<p style=\"font-size: 15px !important; line-height: 1.6 !important; color: #555555 !important; margin: 0 0 14px 0 !important;\">Voltnex Power offers standard and customized BK Series control transformers with different power ratings, voltage combinations, winding materials, insulation classes and mounting configurations to meet your specific industrial requirements.<\/p>\n<p style=\"font-size: 15px !important; line-height: 1.6 !important; color: #555555 !important; margin: 0 !important;\">Available in capacities from 25VA to 100kVA with customizable voltage options and Class B\/F insulation to meet industrial standards.<\/p>\n<\/div>\n<p><!-- \u53f3\u4fa7\u5361\u7247\u7f51\u683c\u680f --><\/p>\n<div style=\"display: table-cell !important; width: 62% !important; vertical-align: top !important; box-sizing: border-box !important;\">\n<h2 style=\"font-size: 28px !important; font-weight: bold !important; color: #000000 !important; margin: 0 0 16px 0 !important; line-height: 1.2 !important;\">Wide Range of Applications<\/h2>\n<p><!-- \u7b2c\u4e00\u884c\u5361\u7247 (1, 2, 3) --><\/p>\n<div style=\"display: table !important; width: 100% !important; table-layout: fixed !important; border-spacing: 12px 0 !important; margin-bottom: 12px !important;\">\n<p><!-- \u5361\u7247 1 --><\/p>\n<div style=\"display: table-cell !important; width: 33.33% !important; height: 160px !important; position: relative !important; border-radius: 8px !important; overflow: hidden !important; background: #001f3f !important; vertical-align: bottom !important;\"><img decoding=\"async\" style=\"position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; z-index: 1 !important; margin: 0 !important;\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/CNC-Machines\uff5cHigh\u2011precision-CNC-machining-center-for-industrial-control-transformer-power-supply-applications.webp\" alt=\"CNC Machines\" \/><\/p>\n<div style=\"position: relative !important; z-index: 2 !important; background: linear-gradient(to top, rgba(0, 31, 63, 0.95) 0%, rgba(0, 31, 63, 0.75) 70%, rgba(0, 31, 63, 0) 100%) !important; padding: 10px !important; display: flex !important; gap: 6px !important; align-items: flex-start !important;\">\n<div>\n<div style=\"font-size: 14px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; margin-bottom: 2px !important;\">CNC Machines<\/div>\n<div style=\"font-size: 11px !important; color: #d0d7de !important; line-height: 1.2 !important;\">Stable control power for CNC circuits &amp; equipment.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u5361\u7247 2 --><\/p>\n<div style=\"display: table-cell !important; width: 33.33% !important; height: 160px !important; position: relative !important; border-radius: 8px !important; overflow: hidden !important; background: #001f3f !important; vertical-align: bottom !important;\"><img decoding=\"async\" style=\"position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; z-index: 1 !important; margin: 0 !important;\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Machine-Tools\uff5cHeavy\u2011duty-industrial-machine-tool-workshop-powered-by-BK-control-transformers.webp\" alt=\"Machine Tools\" \/><\/p>\n<div style=\"position: relative !important; z-index: 2 !important; background: linear-gradient(to top, rgba(0, 31, 63, 0.95) 0%, rgba(0, 31, 63, 0.75) 70%, rgba(0, 31, 63, 0) 100%) !important; padding: 10px !important; display: flex !important; gap: 6px !important; align-items: flex-start !important;\">\n<div>\n<div style=\"font-size: 14px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; margin-bottom: 2px !important;\">Machine Tools<\/div>\n<div style=\"font-size: 11px !important; color: #d0d7de !important; line-height: 1.2 !important;\">Suitable for lathes, milling &amp; grinding machines.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u5361\u7247 3 --><\/p>\n<div style=\"display: table-cell !important; width: 33.33% !important; height: 160px !important; position: relative !important; border-radius: 8px !important; overflow: hidden !important; background: #001f3f !important; vertical-align: bottom !important;\"><img decoding=\"async\" style=\"position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; z-index: 1 !important; margin: 0 !important;\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Control-Cabinets\uff5cIndustrial-electrical-control-cabinet-with-integrated-control-transformer-for-automation-systems.webp\" alt=\"Control Cabinets\" \/><\/p>\n<div style=\"position: relative !important; z-index: 2 !important; background: linear-gradient(to top, rgba(0, 31, 63, 0.95) 0%, rgba(0, 31, 63, 0.75) 70%, rgba(0, 31, 63, 0) 100%) !important; padding: 10px !important; display: flex !important; gap: 6px !important; align-items: flex-start !important;\">\n<div>\n<div style=\"font-size: 14px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; margin-bottom: 2px !important;\">Control Cabinets<\/div>\n<div style=\"font-size: 11px !important; color: #d0d7de !important; line-height: 1.2 !important;\">Powers contactors, relays and switches.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u7b2c\u4e8c\u884c\u5361\u7247 (4, 5, 6) --><\/p>\n<div style=\"display: table !important; width: 100% !important; table-layout: fixed !important; border-spacing: 12px 0 !important;\">\n<p><!-- \u5361\u7247 4 --><\/p>\n<div style=\"display: table-cell !important; width: 33.33% !important; height: 160px !important; position: relative !important; border-radius: 8px !important; overflow: hidden !important; background: #001f3f !important; vertical-align: bottom !important;\"><img decoding=\"async\" style=\"position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; z-index: 1 !important; margin: 0 !important;\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Factory-Automation\uff5cSmart-factory-production-line-with-robotic-arms-powered-by-BK-series-control-transformers.webp\" alt=\"Factory Automation\" \/><\/p>\n<div style=\"position: relative !important; z-index: 2 !important; background: linear-gradient(to top, rgba(0, 31, 63, 0.95) 0%, rgba(0, 31, 63, 0.75) 70%, rgba(0, 31, 63, 0) 100%) !important; padding: 10px !important; display: flex !important; gap: 6px !important; align-items: flex-start !important;\">\n<div>\n<div style=\"font-size: 14px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; margin-bottom: 2px !important;\">Factory Automation<\/div>\n<div style=\"font-size: 11px !important; color: #d0d7de !important; line-height: 1.2 !important;\">Used in automated production lines.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u5361\u7247 5 --><\/p>\n<div style=\"display: table-cell !important; width: 33.33% !important; height: 160px !important; position: relative !important; border-radius: 8px !important; overflow: hidden !important; background: #001f3f !important; vertical-align: bottom !important;\"><img decoding=\"async\" style=\"position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; z-index: 1 !important; margin: 0 !important;\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Motor-Control-Systems\uff5cIndustrial-blue-electric-motors-driven-by-BK-series-control-transformer-motor-control-circuits.webp\" alt=\"Motor Control\" \/><\/p>\n<div style=\"position: relative !important; z-index: 2 !important; background: linear-gradient(to top, rgba(0, 31, 63, 0.95) 0%, rgba(0, 31, 63, 0.75) 70%, rgba(0, 31, 63, 0) 100%) !important; padding: 10px !important; display: flex !important; gap: 6px !important; align-items: flex-start !important;\">\n<div>\n<div style=\"font-size: 14px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; margin-bottom: 2px !important;\">Motor Control<\/div>\n<div style=\"font-size: 11px !important; color: #d0d7de !important; line-height: 1.2 !important;\">Supports circuits for motors &amp; starters.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u5361\u7247 6 --><\/p>\n<div style=\"display: table-cell !important; width: 33.33% !important; height: 160px !important; position: relative !important; border-radius: 8px !important; overflow: hidden !important; background: #001f3f !important; vertical-align: bottom !important;\"><img decoding=\"async\" style=\"position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; z-index: 1 !important; margin: 0 !important;\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Electrical-Equipment\uff5cMulti\u2011rack-industrial-power-distribution-cabinet-for-control-transformer-application-scenarios.webp\" alt=\"Electrical Equipment\" \/><\/p>\n<div style=\"position: relative !important; z-index: 2 !important; background: linear-gradient(to top, rgba(0, 31, 63, 0.95) 0%, rgba(0, 31, 63, 0.75) 70%, rgba(0, 31, 63, 0) 100%) !important; padding: 10px !important; display: flex !important; gap: 6px !important; align-items: flex-start !important;\">\n<div>\n<div style=\"font-size: 14px !important; font-weight: bold !important; color: #ffffff !important; line-height: 1.2 !important; margin-bottom: 2px !important;\">Electrical Equipment<\/div>\n<div style=\"font-size: 11px !important; color: #d0d7de !important; line-height: 1.2 !important;\">For distribution equipment &amp; machinery.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\n  <div class=\"banner has-hover\" id=\"banner-2017828078\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                                    \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-1155384929\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n\n<div style=\"width: 100% !important; font-family: Arial, sans-serif !important; background: transparent !important; padding: 20px 0 !important; box-sizing: border-box !important;\">\n<h2 style=\"font-size: 36px !important; font-weight: bold !important; color: #000000 !important; margin: 0 0 25px 0 !important; text-align: left !important; line-height: 1.2 !important;\">Key Advantages<\/h2>\n<p><!-- \u7f51\u683c\u5bb9\u5668 --><\/p>\n<div style=\"display: flex !important; flex-wrap: wrap !important; justify-content: space-between !important; align-items: stretch !important; width: 100% !important; box-sizing: border-box !important;\">\n<p><!-- \u5361\u7247 1 --><\/p>\n<div style=\"flex: 1 1 140px !important; padding: 0 10px !important; text-align: center !important; border-right: 1px solid rgba(0, 0, 0, 0.15) !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; align-items: center !important; margin-bottom: 15px !important;\">\n<div style=\"height: 44px !important; display: flex !important; align-items: center !important; justify-content: center !important; margin-bottom: 12px !important;\"><\/div>\n<div style=\"font-size: 16px !important; font-weight: 700 !important; color: #000000 !important; margin: 0 0 8px 0 !important; line-height: 1.25 !important;\">Stable Voltage<\/div>\n<div style=\"font-size: 13px !important; color: #222222 !important; margin: 0 !important; line-height: 1.4 !important;\">Reliable voltage for industrial control circuits.<\/div>\n<\/div>\n<p><!-- \u5361\u7247 2 --><\/p>\n<div style=\"flex: 1 1 140px !important; padding: 0 10px !important; text-align: center !important; border-right: 1px solid rgba(0, 0, 0, 0.15) !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; align-items: center !important; margin-bottom: 15px !important;\">\n<div style=\"height: 44px !important; display: flex !important; align-items: center !important; justify-content: center !important; margin-bottom: 12px !important;\"><\/div>\n<div style=\"font-size: 16px !important; font-weight: 700 !important; color: #000000 !important; margin: 0 0 8px 0 !important; line-height: 1.25 !important;\">High Inrush<\/div>\n<div style=\"font-size: 13px !important; color: #222222 !important; margin: 0 !important; line-height: 1.4 !important;\">Handles contactors, relays and solenoid loads.<\/div>\n<\/div>\n<p><!-- \u5361\u7247 3 --><\/p>\n<div style=\"flex: 1 1 140px !important; padding: 0 10px !important; text-align: center !important; border-right: 1px solid rgba(0, 0, 0, 0.15) !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; align-items: center !important; margin-bottom: 15px !important;\">\n<div style=\"height: 44px !important; display: flex !important; align-items: center !important; justify-content: center !important; margin-bottom: 12px !important;\"><\/div>\n<div style=\"font-size: 16px !important; font-weight: 700 !important; color: #000000 !important; margin: 0 0 8px 0 !important; line-height: 1.25 !important;\">Compact Design<\/div>\n<div style=\"font-size: 13px !important; color: #222222 !important; margin: 0 !important; line-height: 1.4 !important;\">Easy installation in machinery and control cabinets.<\/div>\n<\/div>\n<p><!-- \u5361\u7247 4 --><\/p>\n<div style=\"flex: 1 1 140px !important; padding: 0 10px !important; text-align: center !important; border-right: 1px solid rgba(0, 0, 0, 0.15) !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; align-items: center !important; margin-bottom: 15px !important;\">\n<div style=\"height: 44px !important; display: flex !important; align-items: center !important; justify-content: center !important; margin-bottom: 12px !important;\"><\/div>\n<div style=\"font-size: 16px !important; font-weight: 700 !important; color: #000000 !important; margin: 0 0 8px 0 !important; line-height: 1.25 !important;\">Cu \/ Al Windings<\/div>\n<div style=\"font-size: 13px !important; color: #222222 !important; margin: 0 !important; line-height: 1.4 !important;\">Options for higher efficiency or cost savings.<\/div>\n<\/div>\n<p><!-- \u5361\u7247 5 --><\/p>\n<div style=\"flex: 1 1 140px !important; padding: 0 10px !important; text-align: center !important; border-right: 1px solid rgba(0, 0, 0, 0.15) !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; align-items: center !important; margin-bottom: 15px !important;\">\n<div style=\"height: 44px !important; display: flex !important; align-items: center !important; justify-content: center !important; margin-bottom: 12px !important;\"><\/div>\n<div style=\"font-size: 16px !important; font-weight: 700 !important; color: #000000 !important; margin: 0 0 8px 0 !important; line-height: 1.25 !important;\">Flexible Voltage<\/div>\n<div style=\"font-size: 13px !important; color: #222222 !important; margin: 0 !important; line-height: 1.4 !important;\">Custom primary and secondary voltages.<\/div>\n<\/div>\n<p><!-- \u5361\u7247 6 (\u6700\u540e\u4e00\u9879\u53d6\u6d88\u53f3\u8fb9\u6846) --><\/p>\n<div style=\"flex: 1 1 140px !important; padding: 0 10px !important; text-align: center !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; align-items: center !important; margin-bottom: 15px !important;\">\n<div style=\"height: 44px !important; display: flex !important; align-items: center !important; justify-content: center !important; margin-bottom: 12px !important;\"><\/div>\n<div style=\"font-size: 16px !important; font-weight: 700 !important; color: #000000 !important; margin: 0 0 8px 0 !important; line-height: 1.25 !important;\">Long Lifespan<\/div>\n<div style=\"font-size: 13px !important; color: #222222 !important; margin: 0 !important; line-height: 1.4 !important;\">Quality materials and advanced manufacturing.<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-1155384929 {\n  width: 100%;\n}\n#text-box-1155384929 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-2017828078 {\n  padding-top: 320px;\n  background-color: rgb(189, 200, 218);\n}\n<\/style>\n  <\/div>\n\n\n<div class=\"row\"  id=\"row-687136999\">\n\n\t<div id=\"col-2002216299\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div class=\"row\"  id=\"row-1483630006\">\n\n\t<div id=\"col-618030037\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n\n<div style=\"font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: #ffffff; padding: 24px 0; width: 100%; box-sizing: border-box; color: #334155;\">\n<p><!-- \u6839\u5bb9\u5668\uff1aFlex \u4e09\u5217\u7b49\u9ad8\u5e03\u5c40 --><\/p>\n<div style=\"display: flex !important; gap: 24px !important; width: 100% !important; box-sizing: border-box !important; align-items: stretch !important;\">\n<p><!-- \u7b2c\u4e00\u5217\uff1aBK Series Power Range + SEO \u4f18\u52bf\u586b\u5145 --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; background: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 12px !important; padding: 24px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; box-shadow: 0 1px 3px rgba(0,0,0,0.02);\">\n<div>\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 8px 0 !important; line-height: 1.3 !important; letter-spacing: -0.01em !important;\">BK Series Power Range<\/h3>\n<p style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.5 !important; margin: 0 0 16px 0 !important;\">Available ratings from <strong>500VA to 100kVA<\/strong>. Custom power ratings available for OEM &amp; industrial project specifications.<\/p>\n<p><!-- \u5bb9\u91cf\u8868\u683c --><\/p>\n<table style=\"width: 100% !important; border-collapse: collapse !important; background: #ffffff !important; border-radius: 8px !important; border: 1px solid #e2e8f0 !important; overflow: hidden !important; text-align: left !important; margin-bottom: 20px !important;\">\n<thead>\n<tr style=\"background-color: #0f172a !important; color: #ffffff !important;\">\n<th style=\"padding: 10px 14px !important; font-size: 11px !important; font-weight: 700 !important; text-transform: uppercase !important; letter-spacing: 0.05em !important;\">Capacity<\/th>\n<th style=\"padding: 10px 14px !important; font-size: 11px !important; font-weight: 700 !important; text-transform: uppercase !important; letter-spacing: 0.05em !important;\">Typical Application<\/th>\n<\/tr>\n<\/thead>\n<tbody style=\"color: #334155 !important; font-size: 12px !important;\">\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 9px 14px !important; font-weight: 600 !important; color: #0f172a !important; white-space: nowrap !important;\">500VA \u2013 1kVA<\/td>\n<td style=\"padding: 9px 14px !important; color: #475569 !important;\">Small control circuits<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important; background-color: #fafafa !important;\">\n<td style=\"padding: 9px 14px !important; font-weight: 600 !important; color: #0f172a !important; white-space: nowrap !important;\">2kVA \u2013 5kVA<\/td>\n<td style=\"padding: 9px 14px !important; color: #475569 !important;\">Industrial machinery<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 9px 14px !important; font-weight: 600 !important; color: #0f172a !important; white-space: nowrap !important;\">5kVA \u2013 10kVA<\/td>\n<td style=\"padding: 9px 14px !important; color: #475569 !important;\">Control cabinets &amp; automation<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important; background-color: #fafafa !important;\">\n<td style=\"padding: 9px 14px !important; font-weight: 600 !important; color: #0f172a !important; white-space: nowrap !important;\">10kVA \u2013 25kVA<\/td>\n<td style=\"padding: 9px 14px !important; color: #475569 !important;\">Industrial equipment<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 9px 14px !important; font-weight: 600 !important; color: #0f172a !important; white-space: nowrap !important;\">25kVA \u2013 50kVA<\/td>\n<td style=\"padding: 9px 14px !important; color: #475569 !important;\">Large machinery<\/td>\n<\/tr>\n<tr style=\"background-color: #fafafa !important;\">\n<td style=\"padding: 9px 14px !important; font-weight: 600 !important; color: #0f172a !important; white-space: nowrap !important;\">50kVA \u2013 100kVA<\/td>\n<td style=\"padding: 9px 14px !important; color: #475569 !important;\">High-power control systems<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- \u586b\u5145\u533a\u57df\uff1aSEO \u5173\u952e\u5356\u70b9\u4e0e\u8ba4\u8bc1\u6807\u5fd7 (\u89e3\u51b3\u5e95\u90e8\u7559\u767d) --><\/p>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 8px !important; padding: 14px 16px !important; box-sizing: border-box !important;\">\n<p><span style=\"font-size: 11px !important; font-weight: 700 !important; color: #0f172a !important; text-transform: uppercase !important; letter-spacing: 0.05em !important; display: block !important; margin-bottom: 8px !important;\">Key Compliance &amp; Features<\/span><\/p>\n<ul style=\"margin: 0 !important; padding: 0 0 0 16px !important; font-size: 12px !important; color: #475569 !important; line-height: 1.6 !important;\">\n<li><strong>CE &amp; RoHS Compliant:<\/strong> Built to global industrial safety standard IEC 61558.<\/li>\n<li><strong>High-Efficiency Core:<\/strong> Cold-rolled silicon steel minimizes no-load loss.<\/li>\n<li><strong>Varnish Impregnated:<\/strong> Anti-humidity and low acoustic noise performance.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><!-- \u7b2c\u4e8c\u5217\uff1aTechnical Specifications --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; background: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 12px !important; padding: 24px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; box-shadow: 0 1px 3px rgba(0,0,0,0.02);\">\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 16px 0 !important; line-height: 1.3 !important; letter-spacing: -0.01em !important;\">Technical Specifications<\/h3>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 8px !important; overflow: hidden !important; flex-grow: 1 !important;\">\n<table style=\"width: 100% !important; border-collapse: collapse !important; text-align: left !important;\">\n<thead>\n<tr style=\"background-color: #f1f5f9 !important; border-bottom: 1px solid #e2e8f0 !important;\">\n<th style=\"padding: 10px 14px !important; font-size: 11px !important; font-weight: 700 !important; color: #475569 !important; text-transform: uppercase !important; letter-spacing: 0.05em !important; width: 42% !important;\">Parameter<\/th>\n<th style=\"padding: 10px 14px !important; font-size: 11px !important; font-weight: 700 !important; color: #475569 !important; text-transform: uppercase !important; letter-spacing: 0.05em !important; width: 58% !important;\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody style=\"color: #334155 !important; font-size: 12px !important;\">\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Product Type<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Industrial Control Transformer<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Series<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">BK Series<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Rated Capacity<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">500VA \u2013 100kVA<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Phase<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Single Phase \/ Three Phase*<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Input Voltage<\/td>\n<td style=\"padding: 7px 14px !important; color: #2563eb !important; font-weight: 600 !important;\">Custom Available<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Output Voltage<\/td>\n<td style=\"padding: 7px 14px !important; color: #2563eb !important; font-weight: 600 !important;\">Custom Available<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Frequency<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">50Hz \/ 60Hz<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Winding Material<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Copper \/ Aluminum<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Insulation Class<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Class B \/ F \/ H<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Cooling Method<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Natural Air Cooling (AN)<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Installation<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Indoor \/ Cabinet Mount<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Structure Type<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">Open \/ Enclosed Type*<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #f1f5f9 !important;\">\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Standards<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">IEC \/ EN Standard Compliant<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 7px 14px !important; font-weight: 600 !important; color: #64748b !important;\">Customization<\/td>\n<td style=\"padding: 7px 14px !important; color: #0f172a !important; font-weight: 500 !important;\">OEM \/ ODM Support<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p><!-- \u7b2c\u4e09\u5217\uff1aPrimary & Secondary Voltage Options --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; background: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 12px !important; padding: 24px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; box-shadow: 0 1px 3px rgba(0,0,0,0.02);\">\n<div>\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 16px 0 !important; line-height: 1.3 !important; letter-spacing: -0.01em !important;\">Voltage Configurations<\/h3>\n<div style=\"display: flex !important; gap: 12px !important;\">\n<p><!-- Primary Voltage (\u8f93\u5165) --><\/p>\n<div style=\"flex: 1 !important; background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 8px !important; padding: 14px 12px !important; box-sizing: border-box !important;\">\n<p><span style=\"font-size: 11px !important; font-weight: 700 !important; color: #2563eb !important; text-transform: uppercase !important; letter-spacing: 0.05em !important; display: block !important; margin-bottom: 12px !important;\">Primary (Input)<\/span><\/p>\n<div style=\"display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 6px !important;\"><span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">110V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">220V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">380V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">400V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">415V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">440V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">480V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">500V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">600V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">660V<\/span><\/div>\n<\/div>\n<p><!-- Secondary Voltage (\u8f93\u51fa) - \u5df2\u4fee\u590d 220V \u5bbd\u5ea6\u95ee\u9898 --><\/p>\n<div style=\"flex: 1 !important; background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 8px !important; padding: 14px 12px !important; box-sizing: border-box !important;\">\n<p><span style=\"font-size: 11px !important; font-weight: 700 !important; color: #059669 !important; text-transform: uppercase !important; letter-spacing: 0.05em !important; display: block !important; margin-bottom: 12px !important;\">Secondary (Output)<\/span><\/p>\n<div style=\"display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 6px !important;\"><span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">12V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">24V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">36V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">48V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">110V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">120V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">220V<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 5px 4px; border-radius: 4px; font-size: 12px; font-weight: 600; color: #334155; text-align: center;\">380V<\/span><br \/>\n<span style=\"background: #ecfdf5; border: 1px solid #a7f3d0; padding: 5px 4px; border-radius: 4px; font-size: 11px; font-weight: bold; color: #047857; text-align: center; grid-column: span 2; margin-top: 2px;\">+ Custom Voltage<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u5e95\u90e8\u63d0\u793a\u4fe1\u606f --><\/p>\n<div style=\"background: #eff6ff !important; border: 1px solid #bfdbfe !important; border-radius: 6px !important; padding: 12px 14px !important; margin-top: 16px !important;\">\n<p style=\"font-size: 12px !important; color: #1e40af !important; line-height: 1.4 !important; margin: 0 !important; font-weight: 500 !important;\">\ud83d\udca1 <strong>Flexible Engineering:<\/strong> VoltneX Power supports custom multi-tap designs, dual-voltage outputs, and special voltage steps based on project demands.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n\n<div style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: transparent; padding: 10px 0; width: 100%; box-sizing: border-box; color: #334155;\">\n<p><!-- \u6839\u5bb9\u5668\uff1aFlex \u4e09\u5217\u7b49\u9ad8 --><\/p>\n<div style=\"display: flex !important; gap: 16px !important; width: 100% !important; box-sizing: border-box !important; align-items: stretch !important;\">\n<p><!-- \u7b2c\u4e00\u5217\uff1aCustomization Options --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important;\">\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 12px 0 !important; line-height: 1.2 !important;\">Customization Options<\/h3>\n<div style=\"display: grid !important; grid-template-columns: repeat(2, 1fr) !important; gap: 12px !important; background-color: #f8fafc !important; border: 1px solid #e2e8f0 !important; padding: 14px !important; border-radius: 6px !important; box-sizing: border-box !important; height: 100% !important;\">\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">Power Rating<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">500VA \u2013 100kVA &amp; custom capacities.<\/span><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">Voltage Ratios<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">Tailored primary &amp; secondary steps.<\/span><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">Winding Material<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">High-purity copper or aluminum.<\/span><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">Insulation System<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">Class B, F, or H rise ratings.<\/span><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">Dimensions &amp; Mount<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">Adapted to enclosure layout.<\/span><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">Terminals &amp; Wiring<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">Custom blocks or screw connectors.<\/span><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 12px 14px !important; display: flex !important; align-items: flex-start !important; gap: 12px !important; box-sizing: border-box !important; grid-column: span 2 !important;\">\n<div><strong style=\"display: block !important; font-size: 15px !important; color: #0f172a !important; margin-bottom: 4px !important;\">OEM \/ ODM Support<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important;\">Built strictly according to your engineering drawings and electrical specs.<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u7b2c\u4e8c\u5217\uff1aHow to Select a BK Transformer --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important;\">\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 12px 0 !important; line-height: 1.2 !important;\">How to Select a BK Transformer<\/h3>\n<div style=\"background-color: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 6px !important; padding: 16px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; height: 100% !important;\">\n<div style=\"display: flex !important; flex-direction: column !important; gap: 14px !important;\">\n<div style=\"display: flex !important; gap: 12px !important; align-items: flex-start !important;\">\n<p><span style=\"background-color: #0f172a !important; color: #ffffff !important; width: 24px !important; height: 24px !important; min-width: 24px !important; border-radius: 50% !important; display: flex !important; align-items: center !important; justify-content: center !important; font-size: 12px !important; font-weight: 700 !important; margin-top: 1px !important;\">01<\/span><\/p>\n<div><strong style=\"font-size: 15px !important; color: #0f172a !important; display: block !important;\">Determine Primary (Input) Voltage<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important; margin-top: 2px !important;\">e.g., 220V, 380V, 415V, or 440V line supply.<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; gap: 12px !important; align-items: flex-start !important;\">\n<p><span style=\"background-color: #0f172a !important; color: #ffffff !important; width: 24px !important; height: 24px !important; min-width: 24px !important; border-radius: 50% !important; display: flex !important; align-items: center !important; justify-content: center !important; font-size: 12px !important; font-weight: 700 !important; margin-top: 1px !important;\">02<\/span><\/p>\n<div><strong style=\"font-size: 15px !important; color: #0f172a !important; display: block !important;\">Determine Secondary (Control) Voltage<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important; margin-top: 2px !important;\">e.g., 24V, 110V, or 220V control circuit load.<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; gap: 12px !important; align-items: flex-start !important;\">\n<p><span style=\"background-color: #0f172a !important; color: #ffffff !important; width: 24px !important; height: 24px !important; min-width: 24px !important; border-radius: 50% !important; display: flex !important; align-items: center !important; justify-content: center !important; font-size: 12px !important; font-weight: 700 !important; margin-top: 1px !important;\">03<\/span><\/p>\n<div><strong style=\"font-size: 15px !important; color: #0f172a !important; display: block !important;\">Calculate Total VA Capacity<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important; margin-top: 2px !important;\">Consider continuous load + total inrush current.<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; gap: 12px !important; align-items: flex-start !important;\">\n<p><span style=\"background-color: #0f172a !important; color: #ffffff !important; width: 24px !important; height: 24px !important; min-width: 24px !important; border-radius: 50% !important; display: flex !important; align-items: center !important; justify-content: center !important; font-size: 12px !important; font-weight: 700 !important; margin-top: 1px !important;\">04<\/span><\/p>\n<div><strong style=\"font-size: 15px !important; color: #0f172a !important; display: block !important;\">Select Winding &amp; Material<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important; margin-top: 2px !important;\">Choose copper or aluminum based on budget.<\/span><\/div>\n<\/div>\n<div style=\"display: flex !important; gap: 12px !important; align-items: flex-start !important;\">\n<p><span style=\"background-color: #0f172a !important; color: #ffffff !important; width: 24px !important; height: 24px !important; min-width: 24px !important; border-radius: 50% !important; display: flex !important; align-items: center !important; justify-content: center !important; font-size: 12px !important; font-weight: 700 !important; margin-top: 1px !important;\">05<\/span><\/p>\n<div><strong style=\"font-size: 15px !important; color: #0f172a !important; display: block !important;\">Confirm Installation Requirements<\/strong><br \/>\n<span style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.4 !important; display: block !important; margin-top: 2px !important;\">Check dimensions, terminal orientation &amp; cooling.<\/span><\/div>\n<\/div>\n<\/div>\n<div style=\"background: #f0f9ff !important; border: 1px solid #bae6fd !important; border-radius: 4px !important; padding: 14px !important; display: flex !important; gap: 12px !important; align-items: center !important; margin-top: 16px !important;\">\n<div><strong style=\"font-size: 13px !important; color: #0369a1 !important; display: block !important; margin-bottom: 2px !important;\">Need Help Selecting the Right Model?<\/strong><br \/>\n<span style=\"font-size: 12px !important; color: #0284c7 !important; line-height: 1.35 !important; display: block !important;\">Send us your voltage, VA rating &amp; load profile for engineer assistance.<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u7b2c\u4e09\u5217\uff1aOperating Environment --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important;\">\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 12px 0 !important; line-height: 1.2 !important;\">Operating Environment<\/h3>\n<div style=\"background-color: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 6px !important; padding: 16px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; height: 100% !important;\">\n<div style=\"display: flex !important; flex-direction: column !important; gap: 16px !important;\">\n<p><!-- \u4e0a\u65b9 3 \u4e2a\u73af\u5883\u53c2\u6570\u5361\u7247\uff08\u6309\uff1aAmbient Temp: -5\u00b0C to +40\u00b0C \u5e03\u5c40\uff09 --><\/p>\n<div style=\"display: flex !important; flex-direction: column !important; gap: 10px !important;\">\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 10px 14px !important; display: flex !important; gap: 10px !important; align-items: center !important;\">\n<div style=\"font-size: 14px !important; color: #0f172a !important; line-height: 1.3 !important;\"><span style=\"color: #64748b !important; font-weight: 600 !important;\">Ambient Temp: <\/span><br \/>\n<strong style=\"color: #0f172a !important; font-weight: 700 !important;\">-5\u00b0C to +40\u00b0C<\/strong><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 10px 14px !important; display: flex !important; gap: 10px !important; align-items: center !important;\">\n<div style=\"font-size: 14px !important; color: #0f172a !important; line-height: 1.3 !important;\"><span style=\"color: #64748b !important; font-weight: 600 !important;\">24h Avg Temp: <\/span><br \/>\n<strong style=\"color: #0f172a !important; font-weight: 700 !important;\">\u2264 +35\u00b0C<\/strong><\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px solid #e2e8f0 !important; border-radius: 4px !important; padding: 10px 14px !important; display: flex !important; gap: 10px !important; align-items: center !important;\">\n<div style=\"font-size: 14px !important; color: #0f172a !important; line-height: 1.3 !important;\"><span style=\"color: #64748b !important; font-weight: 600 !important;\">Altitude: <\/span><br \/>\n<strong style=\"color: #0f172a !important; font-weight: 700 !important;\">\u2264 2,000m ASL<\/strong><\/div>\n<\/div>\n<\/div>\n<p><!-- \u4e0b\u65b9\u5bf9\u52fe\u5217\u8868 --><\/p>\n<div style=\"display: flex !important; flex-direction: column !important; gap: 12px !important; padding-top: 4px !important;\">\n<div style=\"display: flex !important; gap: 10px !important; align-items: flex-start !important;\"><span style=\"font-size: 13px !important; color: #334155 !important; line-height: 1.4 !important;\">Suitable for industrial control cabinets &amp; machinery.<\/span><\/div>\n<div style=\"display: flex !important; gap: 10px !important; align-items: flex-start !important;\"><span style=\"font-size: 13px !important; color: #334155 !important; line-height: 1.4 !important;\">Ensure adequate ventilation around high-capacity units.<\/span><\/div>\n<div style=\"display: flex !important; gap: 10px !important; align-items: flex-start !important;\"><span style=\"font-size: 13px !important; color: #334155 !important; line-height: 1.4 !important;\">Special anti-humidity \/ anti-vibration options available.<\/span><\/div>\n<\/div>\n<\/div>\n<div style=\"background: #ffffff !important; border: 1px dashed #cbd5e1 !important; padding: 12px 14px !important; border-radius: 4px !important; margin-top: 16px !important;\">\n<p style=\"font-size: 12px !important; color: #64748b !important; margin: 0 !important; line-height: 1.4 !important;\">* Contact engineering team for high-altitude (&gt;2000m) or high-humidity customization.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<div class=\"row align-middle\"  id=\"row-578051901\">\n\n\t<div id=\"col-1213409301\" class=\"col medium-5 small-12 large-5\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_405408336\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"495\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Industrial-Control-Transformer-Dimension-Drawing-\u2013-Outline-Dimensions-Mounting-Dimensions-and-Technical-Specifications.webp\" class=\"attachment-large size-large\" alt=\"BK Series Industrial Control Transformer Dimension Drawing \u2013 Outline, Overall and Mounting Dimensions with Technical Specifications for Custom Industrial Power Applications \u2013 VoltNex Power\" srcset=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Industrial-Control-Transformer-Dimension-Drawing-\u2013-Outline-Dimensions-Mounting-Dimensions-and-Technical-Specifications.webp 900w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Industrial-Control-Transformer-Dimension-Drawing-\u2013-Outline-Dimensions-Mounting-Dimensions-and-Technical-Specifications-300x165.webp 300w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Industrial-Control-Transformer-Dimension-Drawing-\u2013-Outline-Dimensions-Mounting-Dimensions-and-Technical-Specifications-768x422.webp 768w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Industrial-Control-Transformer-Dimension-Drawing-\u2013-Outline-Dimensions-Mounting-Dimensions-and-Technical-Specifications-18x10.webp 18w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Industrial-Control-Transformer-Dimension-Drawing-\u2013-Outline-Dimensions-Mounting-Dimensions-and-Technical-Specifications-600x330.webp 600w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_405408336 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1811590135\" class=\"col medium-7 small-12 large-7\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n\n\n<div style=\"font-family: Arial, sans-serif; color: #1e293b; background-color: #ffffff; padding: 20px 0; width: 100%; box-sizing: border-box;\">\n<div style=\"width: 100% !important; overflow-x: auto !important; border: 1px solid #cbd5e1 !important; border-radius: 6px !important; background-color: #ffffff !important;\">\n<table style=\"width: 100% !important; border-collapse: collapse !important; text-align: center !important; font-size: 14px !important; line-height: 1.4 !important; margin: 0 !important;\">\n<thead>\n<tr>\n<th rowspan=\"2\" style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">MODEL<\/th>\n<th colspan=\"2\" style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">MOUNTING HOLE PITCH (MM)<\/th>\n<th colspan=\"3\" style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">EXTERNAL DIMENSIONS (MM)<\/th>\n<th rowspan=\"2\" style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">MOUNTING HOLE<br \/>(K X J)<\/th>\n<\/tr>\n<tr>\n<th style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">A<\/th>\n<th style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">C<\/th>\n<th style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">B MAX<\/th>\n<th style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">D MAX<\/th>\n<th style=\"background-color: #003366 !important; color: #ffffff !important; font-weight: 600 !important; padding: 10px 8px !important; border: 1px solid #002244 !important; white-space: nowrap !important; vertical-align: middle !important;\">E MAX<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background-color: #ffffff;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-25~50<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">56\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">53\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">80<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">74<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">85<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">4.8 x 9<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-100<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">64\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">65\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">86<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">84<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">92<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">4.8 x 9<\/td>\n<\/tr>\n<tr style=\"background-color: #ffffff;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-150<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">84\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">80\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">96<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">97<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">110<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">5.8 x 11<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-200<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">84\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">87\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">96<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">105<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">110<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">5.8 x 11<\/td>\n<\/tr>\n<tr style=\"background-color: #ffffff;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-250<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">84\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">90\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">96<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">110<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">110<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">5.8 x 11<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-300<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">90\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">98\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">120<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">120<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">125<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">7 x 13<\/td>\n<\/tr>\n<tr style=\"background-color: #ffffff;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-400~500<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">90\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">104\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">135<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">128<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">125<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">7 x 13<\/td>\n<\/tr>\n<tr style=\"background-color: #f8fafc;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-700<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">110\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">97\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">152<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">125<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">147<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">7 x 13<\/td>\n<\/tr>\n<tr style=\"background-color: #ffffff;\">\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #003366 !important; font-weight: bold !important; white-space: nowrap !important;\">BK-1000<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">111\u00b10.5<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">113\u00b12<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">170<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">148<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">165<\/td>\n<td style=\"padding: 10px 8px !important; border: 1px solid #e2e8f0 !important; color: #334155 !important; white-space: nowrap !important;\">7 x 13<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1482622453\">\n\n\t<div id=\"col-1260711171\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_75938135\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications.webp\" class=\"attachment-large size-large\" alt=\"BK Series Dry Type Industrial Control Transformer with Copper Winding, Multiple Terminals and Protective Mounting Structure for Industrial Control Applications\" srcset=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications.webp 800w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications-300x300.webp 300w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications-150x150.webp 150w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications-768x768.webp 768w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications-12x12.webp 12w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications-600x600.webp 600w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Dry-Type-Industrial-Control-Transformer-with-Copper-Winding-Multiple-Terminals-and-Protective-Mounting-Structure-for-Industrial-Control-Applications-100x100.webp 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_75938135 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h2 style=\"text-align: center;\"><a href=\"https:\/\/voltnexpower.com\/es_ec\/manufacturer\/bk-series-industrial-control-transformer-manufacturer\/\">\u00a0Industrial Control &amp; Auxiliary Power Solutions<\/a><\/h2>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-267063780\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1438587893\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels.webp\" class=\"attachment-large size-large\" alt=\"BK Series Enclosed Dry Type Control Transformer Manufacturer in China for CNC and Industrial Control Panels\" srcset=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels.webp 800w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels-300x300.webp 300w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels-150x150.webp 150w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels-768x768.webp 768w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels-12x12.webp 12w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels-600x600.webp 600w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Enclosed-Dry-Type-Control-Transformer-Manufacturer-in-China-\u2013-Custom-Industrial-Control-Transformer-for-CNC-Automation-and-Electrical-Control-Panels-100x100.webp 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1438587893 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h1 class=\"product-title product_title entry-title\" style=\"text-align: center;\"><a href=\"https:\/\/voltnexpower.com\/es_ec\/manufacturer\/bk-series-enclosed-dry-type-control-transformer\/\">BK Series Enclosed Dry Type Control Transformer<\/a><\/h1>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1914815246\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1844880245\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment.webp\" class=\"attachment-large size-large\" alt=\"BK Series Open Type Dry Type Control Transformer for Industrial Control Panels and CNC Machines\" srcset=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment.webp 800w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment-300x300.webp 300w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment-150x150.webp 150w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment-768x768.webp 768w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment-12x12.webp 12w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment-600x600.webp 600w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-Open-Type-Dry-Type-Control-Transformer-for-Industrial-Control-Panels-CNC-Machines-and-Automation-Equipment-100x100.webp 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1844880245 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h1 class=\"product-title product_title entry-title\" style=\"text-align: center;\"><a href=\"https:\/\/voltnexpower.com\/es_ec\/manufacturer\/bk-series-open-type-dry-type-control-transformer\/\">BK Series Open Type Dry Type Control Transformer<\/a><\/h1>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-242316177\" class=\"col medium-3 small-6 large-3\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1250680953\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer.webp\" class=\"attachment-large size-large\" alt=\"BK Series 500VA\u2013100KVA Industrial Control Transformer with 50Hz 60Hz Copper or Aluminum Winding Class F\/H and Custom Voltage\" srcset=\"https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer.webp 800w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer-300x300.webp 300w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer-150x150.webp 150w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer-768x768.webp 768w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer-12x12.webp 12w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer-600x600.webp 600w, https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/BK-Series-500VA\u2013100KVA-Industrial-Control-Transformer-50Hz-60Hz-Copper-or-Aluminum-Winding-Class-FH-Custom-Voltage-OEM-Manufacturer-100x100.webp 100w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1250680953 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h1 class=\"product-title product_title entry-title\" style=\"text-align: center;\"><a href=\"https:\/\/voltnexpower.com\/es_ec\/manufacturer\/bk-series-high-capacity-industrial-control-transformer\/\">High Capacity Industrial Control Transformer<\/a><\/h1>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n\n<div style=\"font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: #ffffff; padding: 24px 0; width: 100%; box-sizing: border-box; color: #334155;\">\n<p><!-- \u6839\u5bb9\u5668\uff1aFlex \u4e09\u5217\u7b49\u9ad8 --><\/p>\n<div style=\"display: flex !important; gap: 24px !important; width: 100% !important; box-sizing: border-box !important; align-items: stretch !important;\">\n<p><!-- Column 1: BK Control Transformer Manufacturer --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; background: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 12px !important; padding: 24px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; box-shadow: 0 1px 3px rgba(0,0,0,0.02);\">\n<div>\n<p><!-- \u6697\u8272 Factory Header \u6807\u724c --><\/p>\n<div style=\"background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); border-radius: 8px; padding: 18px; margin-bottom: 20px; color: #ffffff;\">\n<div style=\"display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px;\"><span style=\"background: rgba(37, 99, 235, 0.2); border: 1px solid #3b82f6; color: #60a5fa; font-size: 11px; font-weight: bold; padding: 2px 8px; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.05em;\">Direct Factory<\/span><br \/>\n<span style=\"font-size: 11px; color: #94a3b8; font-weight: 500;\">ISO 9001 Certified<\/span><\/div>\n<div style=\"font-size: 15px; font-weight: bold; color: #f8fafc; margin-bottom: 4px;\">VoltneX Power Manufacturing<\/div>\n<div style=\"font-size: 12px; color: #cbd5e1; line-height: 1.4;\">China-based Leader in Industrial Power Transformers<\/div>\n<\/div>\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 12px 0 !important; line-height: 1.3 !important; letter-spacing: -0.01em !important;\">BK Control Transformer Manufacturer<\/h3>\n<p style=\"font-size: 13px !important; color: #475569 !important; line-height: 1.6 !important; margin: 0 0 16px 0 !important;\">VoltneX Power is a premier manufacturer and global supplier of high-performance industrial control transformers and power quality solutions. We deliver reliable BK Series transformers optimized for machinery builders, panel integrators, automation engineers, and OEM distributors worldwide.<\/p>\n<p><!-- \u6a21\u5757 1\uff1a\u670d\u52a1\u884c\u4e1a --><\/p>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 12px 14px; margin-bottom: 12px;\">\n<div style=\"font-size: 11px; font-weight: bold; color: #0f172a; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px;\">Target Industries Served<\/div>\n<div style=\"font-size: 12px; color: #64748b; line-height: 1.5;\">\u2022 CNC Industrial Machinery &amp; Automation<br \/>\n\u2022 Electrical Control Cabinets &amp; Switchgears<br \/>\n\u2022 Power Distribution &amp; HVAC Control Systems<\/div>\n<\/div>\n<p><!-- \u6a21\u5757 2\uff1a\u9009\u62e9\u6211\u4eec\u7684\u7406\u7531 --><\/p>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 12px 14px; margin-bottom: 20px;\">\n<div style=\"font-size: 11px; font-weight: bold; color: #0f172a; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px;\">Why Choose VoltneX<\/div>\n<div style=\"font-size: 12px; color: #64748b; line-height: 1.5;\">\u2022 <strong>100% Copper Winding Option:<\/strong> High conductivity &amp; minimal heat.<br \/>\n\u2022 <strong>Low Noise &amp; Thermal Design:<\/strong> Vacuum pressure impregnated.<br \/>\n\u2022 <strong>Factory Direct Supply:<\/strong> Fast lead times &amp; bulk wholesale prices.<\/div>\n<\/div>\n<\/div>\n<p><!-- CTA \u6309\u94ae\uff1a\u5df2\u4fee\u6539\u4e3a\u5f53\u524d\u9875\u9762\u8df3\u8f6c\u6307\u5b9a URL\uff0c\u4e14\u6587\u5b57\u4e0a\u4e0b\u5782\u76f4\u5c45\u4e2d --><br \/>\n<a style=\"display: flex !important; align-items: center !important; justify-content: center !important; background: #2563eb !important; color: #ffffff !important; text-decoration: none !important; font-size: 13px !important; font-weight: 600 !important; padding: 0 18px !important; min-height: 46px !important; border-radius: 6px !important; line-height: 1 !important; box-sizing: border-box !important;\" href=\"https:\/\/voltnexpower.com\/es_ec\/contact\/\"><br \/>\n<span style=\"display: inline-flex; align-items: center; justify-content: center;\">Learn More About Our Factory <span style=\"margin-left: 8px; font-size: 15px; line-height: 1;\">\u2192<\/span><\/span><br \/>\n<\/a><\/p>\n<\/div>\n<p><!-- Column 2: Quality Testing (\u5df2\u586b\u5145\u5e95\u90e8\u7559\u767d) --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; background: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 12px !important; padding: 24px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; box-shadow: 0 1px 3px rgba(0,0,0,0.02);\">\n<div>\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 8px 0 !important; line-height: 1.3 !important; letter-spacing: -0.01em !important;\">Quality Assurance &amp; Testing<\/h3>\n<p style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.5 !important; margin: 0 0 16px 0 !important;\">100% factory inspection ensures absolute compliance with international safety standards before dispatch.<\/p>\n<p><!-- Routine Test \u5217\u8868 --><\/p>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; overflow: hidden; margin-bottom: 12px;\">\n<div style=\"padding: 10px 14px; background: #f1f5f9; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: space-between; align-items: center;\"><span style=\"font-size: 11px; font-weight: bold; color: #475569; text-transform: uppercase; letter-spacing: 0.05em;\">Routine Test Protocol<\/span><br \/>\n<span style=\"font-size: 11px; font-weight: 600; color: #059669; background: #dcfce7; padding: 2px 6px; border-radius: 4px;\">IEC 61558 Standard<\/span><\/div>\n<ul style=\"list-style: none; margin: 0; padding: 0; font-size: 12px; color: #334155;\">\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Winding Resistance Test<\/strong><\/li>\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px; background-color: #fafafa;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Insulation Resistance Test<\/strong><\/li>\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Dielectric Withstand Test (Hi-Pot)<\/strong><\/li>\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px; background-color: #fafafa;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>No-Load Loss &amp; Current Test<\/strong><\/li>\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Load Loss &amp; Impedance Test<\/strong><\/li>\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px; background-color: #fafafa;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Voltage Ratio &amp; Vector Group Test<\/strong><\/li>\n<li style=\"padding: 7px 14px; border-bottom: 1px solid #f1f5f9; display: flex; align-items: center; gap: 8px;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Temperature Rise Verification<\/strong><\/li>\n<li style=\"padding: 7px 14px; display: flex; align-items: center; gap: 8px; background-color: #fafafa;\"><span style=\"color: #2563eb; font-weight: bold; font-size: 13px;\">\u2713<\/span> <strong>Final Appearance &amp; Dimension Inspection<\/strong><\/li>\n<\/ul>\n<\/div>\n<p><!-- \u65b0\u589e\uff1a\u7528\u4ee5\u586b\u8865\u7a7a\u767d\u7684\u201c\u578b\u5f0f\u8bd5\u9a8c\u4e0e\u7279\u6b8a\u68c0\u9a8c\u201d\u6a21\u5757 --><\/p>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 12px 14px; margin-bottom: 16px;\">\n<div style=\"font-size: 11px; font-weight: bold; color: #0f172a; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px;\">Optional Type &amp; Special Tests<\/div>\n<div style=\"font-size: 12px; color: #64748b; line-height: 1.5;\">\u2022 <strong>Short-Circuit Withstand Ability Test<\/strong><br \/>\n\u2022 <strong>Acoustic Sound Level (dB) Measurement<\/strong><br \/>\n\u2022 <strong>Salt Spray &amp; Climate Resistance Testing<\/strong><\/div>\n<\/div>\n<\/div>\n<p><!-- \u5e95\u90e8\u63d0\u793a\u6846 --><\/p>\n<div style=\"background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: 6px; padding: 10px 12px;\">\n<p style=\"font-size: 12px; color: #166534; line-height: 1.4; margin: 0; font-weight: 500;\">\ud83d\udee1\ufe0f Each transformer is strictly tested according to client technical datasheets prior to shipment.<\/p>\n<\/div>\n<\/div>\n<p><!-- Column 3: OEM & ODM Solutions (\u5df2\u586b\u5145\u5e95\u90e8\u7559\u767d) --><\/p>\n<div style=\"flex: 1 !important; min-width: 0 !important; background: #f8fafc !important; border: 1px solid #e2e8f0 !important; border-radius: 12px !important; padding: 24px !important; box-sizing: border-box !important; display: flex !important; flex-direction: column !important; justify-content: space-between !important; box-shadow: 0 1px 3px rgba(0,0,0,0.02);\">\n<div>\n<h3 style=\"font-size: 20px !important; font-weight: 700 !important; color: #0f172a !important; margin: 0 0 8px 0 !important; line-height: 1.3 !important; letter-spacing: -0.01em !important;\">OEM &amp; ODM Custom Solutions<\/h3>\n<p style=\"font-size: 13px !important; color: #64748b !important; line-height: 1.5 !important; margin: 0 0 16px 0 !important;\">End-to-end engineering customization for global brand owners and project contractors.<\/p>\n<div style=\"display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px;\">\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 9px 12px; display: flex; gap: 12px; align-items: flex-start;\">\n<div style=\"background: #eff6ff; color: #2563eb; font-weight: bold; width: 24px; height: 24px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0;\">01<\/div>\n<div>\n<div style=\"font-size: 13px; font-weight: bold; color: #0f172a;\">Electrical Engineering<\/div>\n<div style=\"font-size: 12px; color: #64748b;\">Custom voltage, capacity, multi-taps, frequency &amp; duty cycles.<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 9px 12px; display: flex; gap: 12px; align-items: flex-start;\">\n<div style=\"background: #eff6ff; color: #2563eb; font-weight: bold; width: 24px; height: 24px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0;\">02<\/div>\n<div>\n<div style=\"font-size: 13px; font-weight: bold; color: #0f172a;\">Mechanical Design<\/div>\n<div style=\"font-size: 12px; color: #64748b;\">Tailored dimensions, mounting holes, terminal blocks &amp; enclosures.<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 9px 12px; display: flex; gap: 12px; align-items: flex-start;\">\n<div style=\"background: #eff6ff; color: #2563eb; font-weight: bold; width: 24px; height: 24px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0;\">03<\/div>\n<div>\n<div style=\"font-size: 13px; font-weight: bold; color: #0f172a;\">Branding &amp; Private Label<\/div>\n<div style=\"font-size: 12px; color: #64748b;\">Custom customer nameplate, logo, color, and technical schematics.<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 9px 12px; display: flex; gap: 12px; align-items: flex-start;\">\n<div style=\"background: #eff6ff; color: #2563eb; font-weight: bold; width: 24px; height: 24px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0;\">04<\/div>\n<div>\n<div style=\"font-size: 13px; font-weight: bold; color: #0f172a;\">Export Packaging<\/div>\n<div style=\"font-size: 12px; color: #64748b;\">Seaworthy wooden cases, customized inner cartons, and barcodes.<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 9px 12px; display: flex; gap: 12px; align-items: flex-start;\">\n<div style=\"background: #eff6ff; color: #2563eb; font-weight: bold; width: 24px; height: 24px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 11px; flex-shrink: 0;\">05<\/div>\n<div>\n<div style=\"font-size: 13px; font-weight: bold; color: #0f172a;\">Flexible Production<\/div>\n<div style=\"font-size: 12px; color: #64748b;\">Fast rapid prototyping samples and scalable volume manufacturing.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- \u65b0\u589e\uff1a\u7528\u4ee5\u586b\u8865\u7a7a\u767d\u7684\u201cOEM\/ODM \u5b9a\u5236\u670d\u52a1\u6d41\u7a0b\u201d\u6a21\u5757 --><\/p>\n<div style=\"background: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 12px 14px; margin-bottom: 16px;\">\n<div style=\"font-size: 11px; font-weight: bold; color: #0f172a; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 8px;\">OEM \/ ODM Service Workflow<\/div>\n<div style=\"display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: #475569; font-weight: 600; text-align: center;\"><span style=\"background: #f1f5f9; padding: 4px 6px; border-radius: 4px; flex: 1; margin-right: 4px;\">1. Inquiry<\/span><br \/>\n<span style=\"color: #94a3b8;\">\u2192<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 4px 6px; border-radius: 4px; flex: 1; margin: 0 4px;\">2. Drawing<\/span><br \/>\n<span style=\"color: #94a3b8;\">\u2192<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 4px 6px; border-radius: 4px; flex: 1; margin: 0 4px;\">3. Sample<\/span><br \/>\n<span style=\"color: #94a3b8;\">\u2192<\/span><br \/>\n<span style=\"background: #f1f5f9; padding: 4px 6px; border-radius: 4px; flex: 1; margin-left: 4px;\">4. Mass Batch<\/span><\/div>\n<\/div>\n<\/div>\n<p><!-- \u5e95\u90e8\u63d0\u793a\u6846 --><\/p>\n<div style=\"background: #eff6ff; border: 1px solid #bfdbfe; border-radius: 6px; padding: 10px 12px;\">\n<p style=\"font-size: 12px; color: #1e40af; line-height: 1.4; margin: 0; font-weight: 500;\">\u2699\ufe0f <strong>Engineering Support:<\/strong> Send us your technical drawing or requirements for a free sample evaluation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n\n  <div class=\"banner has-hover\" id=\"banner-999495353\">\n          <div class=\"banner-inner fill\">\n        <div class=\"banner-bg fill\" >\n            <div class=\"bg fill bg-fill\"><\/div>\n                                    \n                    <\/div>\n\t\t\n        <div class=\"banner-layers container\">\n            <div class=\"fill banner-link\"><\/div>            \n   <div id=\"text-box-724426143\" class=\"text-box banner-layer x50 md-x50 lg-x50 y50 md-y50 lg-y50 res-text\">\n                                <div class=\"text-box-content text dark\">\n              \n              <div class=\"text-inner text-center\">\n                  \n\n<div style=\"width: 100% !important; background-color: rgba(13, 40, 71, 0.82) !important; background: linear-gradient(135deg, rgba(7, 25, 45, 0.85) 0%, rgba(13, 40, 71, 0.82) 50%, rgba(21, 56, 96, 0.85) 100%) !important; backdrop-filter: blur(10px) !important; -webkit-backdrop-filter: blur(10px) !important; color: #ffffff !important; padding: 42px 24px !important; box-sizing: border-box !important; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif !important; border-radius: 10px !important; border: 1px solid rgba(255, 255, 255, 0.1) !important; margin: 20px 0 !important;\">\n<p><!-- \u4e0a\u534a\u90e8\u5206\uff1a\u6807\u9898\u63cf\u8ff0 \u4e0e \u533a\u57df\u5217\u8868 --><\/p>\n<div style=\"display: flex !important; flex-wrap: wrap !important; justify-content: space-between !important; align-items: center !important; gap: 30px !important; width: 100% !important; margin-bottom: 35px !important; box-sizing: border-box !important;\">\n<p><!-- \u5de6\u4fa7\uff1a\u6807\u9898\u4e0e\u63cf\u8ff0\u6587\u6848 (\u5b57\u53f7\u518d\u52a0\u5927) --><\/p>\n<div style=\"flex: 1 1 480px !important; min-width: 280px !important; box-sizing: border-box !important;\">\n<h2 style=\"font-size: 34px !important; font-weight: bold !important; color: #ffffff !important; margin: 0 0 14px 0 !important; line-height: 1.2 !important; letter-spacing: -0.5px !important;\">Wholesale &amp; Global Supply<\/h2>\n<p style=\"font-size: 18px !important; line-height: 1.6 !important; color: #d0d7de !important; margin: 0 !important; max-width: 640px !important;\">Voltnex Power supplies BK Series control transformers for distributors, electrical wholesalers, OEM manufacturers, contractors and industrial projects.<\/p>\n<\/div>\n<p><!-- \u53f3\u4fa7\uff1a\u5168\u7403\u8986\u76d6\u533a\u57df\uff08\u80f6\u56ca\u6837\u5f0f\uff0c\u66f4\u597d\u770b\uff09 --><\/p>\n<div style=\"flex: 1 1 400px !important; min-width: 280px !important; box-sizing: border-box !important;\">\n<div style=\"display: flex !important; flex-wrap: wrap !important; gap: 10px 12px !important; align-items: center !important;\"><span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">North America<\/span><br \/>\n<span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">Europe<\/span><br \/>\n<span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">Latin America<\/span><br \/>\n<span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">Middle East<\/span><br \/>\n<span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">Southeast Asia<\/span><br \/>\n<span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">Africa<\/span><br \/>\n<span style=\"font-size: 17px !important; font-weight: 500 !important; color: #ffffff !important; background: rgba(255, 255, 255, 0.08) !important; border: 1px solid rgba(255, 255, 255, 0.18) !important; padding: 6px 14px !important; border-radius: 20px !important; display: inline-block !important;\">Australia<\/span><\/div>\n<\/div>\n<\/div>\n<p><!-- \u5206\u5272\u7ebf --><\/p>\n<div style=\"width: 100% !important; height: 1px !important; background-color: rgba(255, 255, 255, 0.18) !important; margin-bottom: 30px !important;\"><\/div>\n<p><!-- \u4e0b\u534a\u90e8\u5206\uff1a5\u5927\u670d\u52a1\u4f18\u52bf\uff08\u5b57\u53f7\u66f4\u5927\uff0c\u56fe\u6807\u5fae\u8c03\u653e\u5927\uff09 --><\/p>\n<div style=\"display: flex !important; flex-wrap: wrap !important; justify-content: space-between !important; align-items: center !important; gap: 16px !important; width: 100% !important; box-sizing: border-box !important;\">\n<p><!-- \u670d\u52a1 1 --><\/p>\n<div style=\"flex: 1 1 170px !important; display: flex !important; align-items: center !important; gap: 12px !important; min-width: 160px !important;\">\n<span style=\"font-size: 16px !important; font-weight: 600 !important; color: #ffffff !important; line-height: 1.2 !important;\">Factory Direct Supply<\/span><\/div>\n<p><!-- \u670d\u52a1 2 --><\/p>\n<div style=\"flex: 1 1 140px !important; display: flex !important; align-items: center !important; gap: 12px !important; min-width: 130px !important;\">\n<span style=\"font-size: 16px !important; font-weight: 600 !important; color: #ffffff !important; line-height: 1.2 !important;\">OEM \/ ODM<\/span><\/div>\n<p><!-- \u670d\u52a1 3 --><\/p>\n<div style=\"flex: 1 1 150px !important; display: flex !important; align-items: center !important; gap: 12px !important; min-width: 140px !important;\">\n<span style=\"font-size: 16px !important; font-weight: 600 !important; color: #ffffff !important; line-height: 1.2 !important;\">Bulk Orders<\/span><\/div>\n<p><!-- \u670d\u52a1 4 --><\/p>\n<div style=\"flex: 1 1 170px !important; display: flex !important; align-items: center !important; gap: 12px !important; min-width: 160px !important;\">\n<span style=\"font-size: 16px !important; font-weight: 600 !important; color: #ffffff !important; line-height: 1.2 !important;\">Export Packaging<\/span><\/div>\n<p><!-- \u670d\u52a1 5 --><\/p>\n<div style=\"flex: 1 1 170px !important; display: flex !important; align-items: center !important; gap: 12px !important; min-width: 160px !important;\">\n<span style=\"font-size: 16px !important; font-weight: 600 !important; color: #ffffff !important; line-height: 1.2 !important;\">Technical Support<\/span><\/div>\n<\/div>\n<\/div>\n\n              <\/div>\n           <\/div>\n                            \n<style>\n#text-box-724426143 {\n  width: 100%;\n}\n#text-box-724426143 .text-box-content {\n  font-size: 100%;\n}\n<\/style>\n    <\/div>\n \n        <\/div>\n      <\/div>\n\n            \n<style>\n#banner-999495353 {\n  padding-top: 400px;\n}\n#banner-999495353 .bg.bg-loaded {\n  background-image: url(https:\/\/voltnexpower.com\/wp-content\/uploads\/2026\/09\/Global-Wholesale-Factory-Direct-Supply-Background-with-World-Map-Cargo-Shipping.webp);\n}\n<\/style>\n  <\/div>\n\n\n<div class=\"row\"  id=\"row-28707312\">\n\n\t<div id=\"col-930681739\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2><\/h2>\n<h2><span style=\"font-size: 150%;\"><strong><span style=\"color: #003b73;\">FREQUENTLY ASKED QUESTIONS<\/span><\/strong><\/span><\/h2>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1920559032\">\n\n\t<div id=\"col-457525976\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div class=\"accordion\">\n\t<div id=\"accordion-3123047059\" class=\"accordion-item\">\n\t\t<a id=\"accordion-3123047059-label\" class=\"accordion-title plain\" href=\"#accordion-item-1.-what-is-a-bk-series-industrial-control-transformer-used-for?\" aria-expanded=\"false\" aria-controls=\"accordion-3123047059-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>1. What is a BK Series industrial control transformer used for?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-3123047059-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-3123047059-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"868\" data-end=\"1323\">A<a href=\"https:\/\/voltnexpower.com\/es_ec\/industrial-control-transformers-for-machine-tools-lighting-systems-electrical-control-applications\/\"> <strong data-start=\"870\" data-end=\"914\">BK Series industrial control transformer<\/strong><\/a> is designed to provide stable and reliable control power for industrial machinery, machine tools, CNC machines, electrical control panels, automation equipment and auxiliary electrical circuits. It steps the available primary voltage down or up to the required control voltage for components such as <strong data-start=\"1215\" data-end=\"1322\">contactors, relays, solenoid valves, PLC circuits, sensors, indicator lights and motor control circuits<\/strong>.<\/p>\n<p data-start=\"1325\" data-end=\"1718\">Compared with a general-purpose power transformer, a control transformer is designed specifically for control circuits where stable voltage and reliable performance during switching and inrush conditions are important. VoltNex Power supplies BK Series control transformers for industrial automation, machine-building and electrical equipment applications.<\/p>\n<p data-start=\"1720\" data-end=\"1892\"><strong data-start=\"1720\" data-end=\"1746\">Search intent covered:<\/strong><br data-start=\"1746\" data-end=\"1749\" \/>BK control transformer \/ industrial control transformer \/ control power transformer \/ machine control transformer \/ auxiliary power transformer<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-2170822583\" class=\"accordion-item\">\n\t\t<a id=\"accordion-2170822583-label\" class=\"accordion-title plain\" href=\"#accordion-item-2.-what-is-the-difference-between-a-bk-control-transformer-and-a-standard-transformer?\" aria-expanded=\"false\" aria-controls=\"accordion-2170822583-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>2. What is the difference between a BK control transformer and a standard transformer?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-2170822583-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-2170822583-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"1990\" data-end=\"2244\">A <strong data-start=\"1992\" data-end=\"2018\">BK control transformer<\/strong> is optimized for industrial control circuits rather than general power distribution. It is commonly used to provide a dedicated control voltage for contactors, relays, solenoids, PLCs, indicators and other control components.<\/p>\n<p data-start=\"2246\" data-end=\"2636\">Important selection factors include <strong data-start=\"2282\" data-end=\"2421\">VA capacity, primary voltage, secondary voltage, inrush current, voltage regulation, frequency, insulation class and installation space<\/strong>. A standard power transformer may be suitable for some applications, but a properly selected control transformer is generally better suited to machinery control circuits with frequent switching and inductive loads.<\/p>\n<p data-start=\"2638\" data-end=\"2781\"><strong data-start=\"2638\" data-end=\"2664\">Search intent covered:<\/strong><br data-start=\"2664\" data-end=\"2667\" \/>control transformer vs transformer \/ control power transformer \/ industrial transformer \/ machine tool transformer<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-539287868\" class=\"accordion-item\">\n\t\t<a id=\"accordion-539287868-label\" class=\"accordion-title plain\" href=\"#accordion-item-3.-what-va-and-kva-ratings-are-available-for-bk-series-control-transformers?\" aria-expanded=\"false\" aria-controls=\"accordion-539287868-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>3. What VA and kVA ratings are available for BK Series control transformers?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-539287868-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-539287868-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"2869\" data-end=\"3234\">The BK Series page is positioned for <strong data-start=\"2906\" data-end=\"2925\">500VA to 100kVA<\/strong> industrial control transformer applications, with custom capacities available for OEM and project requirements. Typical application ranges include smaller control circuits, industrial machinery, control cabinets, automation equipment and higher-power industrial systems.<\/p>\n<p data-start=\"3236\" data-end=\"3455\">When selecting a rating, the transformer should be sized according to both the <strong data-start=\"3315\" data-end=\"3363\">continuous VA load and the maximum inrush VA<\/strong> of connected devices such as contactors, solenoids, motors and other electromagnetic loads.<\/p>\n<p data-start=\"3457\" data-end=\"3657\">For a custom BK transformer, provide the required <strong data-start=\"3507\" data-end=\"3588\">VA\/kVA rating, primary voltage, secondary voltage, frequency and load profile<\/strong> so the engineering team can recommend the appropriate configuration.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-926631363\" class=\"accordion-item\">\n\t\t<a id=\"accordion-926631363-label\" class=\"accordion-title plain\" href=\"#accordion-item-4.-how-do-i-calculate-the-correct-va-rating-for-a-bk-control-transformer?\" aria-expanded=\"false\" aria-controls=\"accordion-926631363-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>4. How do I calculate the correct VA rating for a BK control transformer?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-926631363-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-926631363-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"3742\" data-end=\"3986\">Start by calculating the total <strong data-start=\"3773\" data-end=\"3797\">steady-state VA load<\/strong> of all control components that may operate simultaneously. Then evaluate the maximum <strong data-start=\"3883\" data-end=\"3896\">inrush VA<\/strong> produced when contactors, relays, solenoid valves or other inductive loads are energized.<\/p>\n<p data-start=\"3988\" data-end=\"4026\">A practical selection should consider:<\/p>\n<ul data-start=\"4028\" data-end=\"4213\">\n<li data-section-id=\"1wq2kas\" data-start=\"4028\" data-end=\"4053\">Continuous control load<\/li>\n<li data-section-id=\"16go4u7\" data-start=\"4054\" data-end=\"4081\">Maximum simultaneous load<\/li>\n<li data-section-id=\"1ohhdyt\" data-start=\"4082\" data-end=\"4111\">Contactors and relay inrush<\/li>\n<li data-section-id=\"17dbnka\" data-start=\"4112\" data-end=\"4129\">Solenoid inrush<\/li>\n<li data-section-id=\"1hzq4mk\" data-start=\"4130\" data-end=\"4164\">PLC and electronic control loads<\/li>\n<li data-section-id=\"t1s184\" data-start=\"4165\" data-end=\"4189\">Motor starter circuits<\/li>\n<li data-section-id=\"pueuoi\" data-start=\"4190\" data-end=\"4213\">Future load expansion<\/li>\n<\/ul>\n<p data-start=\"4215\" data-end=\"4484\">The selected control transformer should have sufficient capacity to prevent excessive voltage drop during starting or switching conditions. VoltNex Power can assist with sizing when you provide the load list and operating sequence.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-2530075118\" class=\"accordion-item\">\n\t\t<a id=\"accordion-2530075118-label\" class=\"accordion-title plain\" href=\"#accordion-item-5.-what-input-and-output-voltages-are-available-for-bk-series-control-transformers?\" aria-expanded=\"false\" aria-controls=\"accordion-2530075118-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>5. What input and output voltages are available for BK Series control transformers?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-2530075118-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-2530075118-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"4731\" data-end=\"4932\">VoltNex Power offers customized primary and secondary voltage configurations. Common primary voltages listed for the BK Series include <strong data-start=\"4866\" data-end=\"4931\">110V, 220V, 380V, 400V, 415V, 440V, 480V, 500V, 600V and 660V<\/strong>.<\/p>\n<p data-start=\"4934\" data-end=\"5228\">Common secondary control voltages include <strong data-start=\"4976\" data-end=\"5025\">12V, 24V, 36V, 48V, 110V, 120V, 220V and 380V<\/strong>, with special voltage combinations available for customized projects. Multi-tap and dual-voltage configurations can also be engineered according to the application.<\/p>\n<p data-start=\"5230\" data-end=\"5372\">For international OEM equipment, the primary and secondary voltages should be confirmed from the machine electrical schematic before ordering.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-4196442320\" class=\"accordion-item\">\n\t\t<a id=\"accordion-4196442320-label\" class=\"accordion-title plain\" href=\"#accordion-item-6.-can-bk-control-transformers-be-used-for-24v,-110v-and-220v-control-circuits?\" aria-expanded=\"false\" aria-controls=\"accordion-4196442320-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>6. Can BK control transformers be used for 24V, 110V and 220V control circuits?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-4196442320-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-4196442320-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"5463\" data-end=\"5665\">Yes. <strong data-start=\"5468\" data-end=\"5490\">24V, 110V and 220V<\/strong> are common control-voltage requirements, and the BK Series can be configured with different primary and secondary voltage combinations according to the project specification.<\/p>\n<p data-start=\"5667\" data-end=\"5696\">Typical applications include:<\/p>\n<ul data-start=\"5698\" data-end=\"5911\">\n<li data-section-id=\"rxjlmn\" data-start=\"5698\" data-end=\"5720\">24V control circuits<\/li>\n<li data-section-id=\"6olzk9\" data-start=\"5721\" data-end=\"5754\">24V relay and solenoid circuits<\/li>\n<li data-section-id=\"fhc7l8\" data-start=\"5755\" data-end=\"5786\">110V machine control circuits<\/li>\n<li data-section-id=\"15epvv4\" data-start=\"5787\" data-end=\"5811\">110V lighting circuits<\/li>\n<li data-section-id=\"4teea1\" data-start=\"5812\" data-end=\"5835\">220V control circuits<\/li>\n<li data-section-id=\"1e360ly\" data-start=\"5836\" data-end=\"5872\">PLC and automation auxiliary power<\/li>\n<li data-section-id=\"1occs76\" data-start=\"5873\" data-end=\"5911\">Contactor and motor starter circuits<\/li>\n<\/ul>\n<p data-start=\"5913\" data-end=\"6078\">Custom voltage ratios and multi-tap configurations are also available for OEM machine builders and control-panel manufacturers.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-4047062163\" class=\"accordion-item\">\n\t\t<a id=\"accordion-4047062163-label\" class=\"accordion-title plain\" href=\"#accordion-item-7.-are-bk-series-control-transformers-suitable-for-cnc-machines-and-machine-tools?\" aria-expanded=\"false\" aria-controls=\"accordion-4047062163-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>7. Are BK Series control transformers suitable for CNC machines and machine tools?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-4047062163-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-4047062163-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"6172\" data-end=\"6391\">Yes. BK Series industrial control transformers are designed for applications including <strong data-start=\"6259\" data-end=\"6390\">CNC machines, machine tools, lathes, milling machines, grinding machines, machining equipment and industrial automation systems<\/strong>.<\/p>\n<p data-start=\"6393\" data-end=\"6560\">They can provide dedicated control power for electrical control cabinets, contactors, relays, PLC systems, machine lighting, sensors, solenoids and auxiliary circuits.<\/p>\n<p data-start=\"6562\" data-end=\"6796\">For CNC equipment, the transformer should be selected according to the machine&#8217;s actual <strong data-start=\"6650\" data-end=\"6757\">input voltage, control voltage, VA requirement, inrush load, frequency and available installation space<\/strong>.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-376560673\" class=\"accordion-item\">\n\t\t<a id=\"accordion-376560673-label\" class=\"accordion-title plain\" href=\"#accordion-item-8.-can-bk-transformers-be-used-inside-electrical-control-cabinets-and-automation-panels?\" aria-expanded=\"false\" aria-controls=\"accordion-376560673-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>8. Can BK transformers be used inside electrical control cabinets and automation panels?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-376560673-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-376560673-label\" >\n\t\t\t\n<p data-path-to-node=\"10\">Our control transformers are manufactured with Class B (130\u00b0C), Class F (155\u00b0C), or Class H (180\u00b0C) high-temperature insulation materials using Vacuum Pressure Impregnation (VPI) process to ensure moisture resistance, superior dielectric strength, low noise, and strict compliance with IEC 61558, EN 61558, and CE safety standards.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-1534222255\" class=\"accordion-item\">\n\t\t<a id=\"accordion-1534222255-label\" class=\"accordion-title plain\" href=\"#accordion-item-9.-can-i-choose-copper-or-aluminum-windings-for-a-bk-control-transformer?\" aria-expanded=\"false\" aria-controls=\"accordion-1534222255-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>9. Can I choose copper or aluminum windings for a BK control transformer?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-1534222255-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-1534222255-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"7811\" data-end=\"7978\">Yes. BK Series control transformers can be supplied with <strong data-start=\"7868\" data-end=\"7899\">copper or aluminum windings<\/strong> depending on electrical requirements, cost targets and project specifications.<\/p>\n<p data-start=\"7980\" data-end=\"8198\">Copper winding is commonly selected when customers prioritize high conductivity, compact design and lower winding losses. Aluminum winding can provide a more cost-oriented solution for suitable industrial applications.<\/p>\n<p data-start=\"8200\" data-end=\"8394\">For OEM projects, VoltNex Power can specify the winding material according to the required <strong data-start=\"8291\" data-end=\"8355\">current, temperature rise, efficiency, dimensions and budget<\/strong>.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-481485452\" class=\"accordion-item\">\n\t\t<a id=\"accordion-481485452-label\" class=\"accordion-title plain\" href=\"#accordion-item-10.-what-insulation-class-is-available-for-bk-series-industrial-control-transformers?\" aria-expanded=\"false\" aria-controls=\"accordion-481485452-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>10. What insulation class is available for BK Series industrial control transformers?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-481485452-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-481485452-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"8634\" data-end=\"8882\">The BK Series can be configured with <strong data-start=\"8671\" data-end=\"8721\">Class B, Class F or Class H insulation systems<\/strong>, depending on the required thermal performance and application conditions. The page currently lists Class B\/F\/H options.<\/p>\n<p data-start=\"8884\" data-end=\"9078\">For industrial machinery and automation applications, insulation selection should consider <strong data-start=\"8975\" data-end=\"9077\">ambient temperature, load profile, enclosure ventilation, duty cycle and required temperature rise<\/strong>.<\/p>\n<p data-start=\"9080\" data-end=\"9281\">For special environments such as high humidity, high altitude or high-vibration applications, customized construction can be discussed with the engineering team.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-1614332005\" class=\"accordion-item\">\n\t\t<a id=\"accordion-1614332005-label\" class=\"accordion-title plain\" href=\"#accordion-item-11.-can-bk-control-transformers-operate-on-both-50hz-and-60hz-power-systems?\" aria-expanded=\"false\" aria-controls=\"accordion-1614332005-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>11. Can BK control transformers operate on both 50Hz and 60Hz power systems?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-1614332005-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-1614332005-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"9369\" data-end=\"9583\">Yes. The BK Series is offered for <strong data-start=\"9403\" data-end=\"9420\">50Hz and 60Hz<\/strong> industrial power systems, making it suitable for machinery and OEM equipment intended for different international markets.<\/p>\n<p data-start=\"9585\" data-end=\"9824\">This is particularly useful for manufacturers exporting CNC machines, machine tools, automation equipment and electrical control panels to markets such as the <strong data-start=\"9744\" data-end=\"9823\">United States, Canada, Europe, Australia, Latin America and the Middle East<\/strong>.<\/p>\n<p data-start=\"9826\" data-end=\"9986\">However, the exact voltage and frequency combination should always be confirmed against the transformer nameplate and technical specification before production.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-1657258454\" class=\"accordion-item\">\n\t\t<a id=\"accordion-1657258454-label\" class=\"accordion-title plain\" href=\"#accordion-item-12.-what-is-the-minimum-order-quantity-(moq)-and-lead-time-for-wholesale-or-custom-orders?\" aria-expanded=\"false\" aria-controls=\"accordion-1657258454-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>12. What is the minimum order quantity (MOQ) and lead time for wholesale or custom orders?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-1657258454-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-1657258454-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"10087\" data-end=\"10226\">Both transformer types can provide electrical separation between primary and secondary circuits, but their design priorities are different.<\/p>\n<p data-start=\"10228\" data-end=\"10486\">A <strong data-start=\"10230\" data-end=\"10253\">control transformer<\/strong> is primarily intended to supply reliable power to control circuits containing loads such as contactors, relays, solenoids and other switching devices. Its design takes control-circuit inrush and voltage stability into consideration.<\/p>\n<p data-start=\"10488\" data-end=\"10668\">An <strong data-start=\"10491\" data-end=\"10516\">isolation transformer<\/strong> is more commonly selected when the main objective is electrical isolation between circuits, equipment protection or power-quality-related applications.<\/p>\n<p data-start=\"10670\" data-end=\"10829\">For a machine control cabinet, a <strong data-start=\"10703\" data-end=\"10726\">control transformer<\/strong> is generally the more application-specific choice when the load consists mainly of control components.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-2779693726\" class=\"accordion-item\">\n\t\t<a id=\"accordion-2779693726-label\" class=\"accordion-title plain\" href=\"#accordion-item-13.-can-voltnex-power-customize-bk-control-transformers-for-oem-and-odm-projects?\" aria-expanded=\"false\" aria-controls=\"accordion-2779693726-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>13. Can VoltNex Power customize BK control transformers for OEM and ODM projects?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-2779693726-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-2779693726-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"10922\" data-end=\"11024\">Yes. VoltNex Power provides <strong data-start=\"10950\" data-end=\"10979\">OEM and ODM customization<\/strong> for industrial control transformer projects.<\/p>\n<p data-start=\"11026\" data-end=\"11052\">Customization can include:<\/p>\n<ul data-start=\"11054\" data-end=\"11387\">\n<li data-section-id=\"dh1f6n\" data-start=\"11054\" data-end=\"11077\">Primary\/input voltage<\/li>\n<li data-section-id=\"2fcvgg\" data-start=\"11078\" data-end=\"11104\">Secondary\/output voltage<\/li>\n<li data-section-id=\"1mff22g\" data-start=\"11105\" data-end=\"11122\">VA\/kVA capacity<\/li>\n<li data-section-id=\"q1lkw0\" data-start=\"11123\" data-end=\"11146\">50Hz \/ 60Hz frequency<\/li>\n<li data-section-id=\"12hyp68\" data-start=\"11147\" data-end=\"11175\">Copper or aluminum winding<\/li>\n<li data-section-id=\"1uiv4qi\" data-start=\"11176\" data-end=\"11204\">Class B \/ F \/ H insulation<\/li>\n<li data-section-id=\"pt88jv\" data-start=\"11205\" data-end=\"11224\">Multi-tap voltage<\/li>\n<li data-section-id=\"hvgu6c\" data-start=\"11225\" data-end=\"11246\">Dual-voltage output<\/li>\n<li data-section-id=\"10mbf9s\" data-start=\"11247\" data-end=\"11271\">Transformer dimensions<\/li>\n<li data-section-id=\"ms63sc\" data-start=\"11272\" data-end=\"11297\">Mounting-hole positions<\/li>\n<li data-section-id=\"5meo6u\" data-start=\"11298\" data-end=\"11315\">Terminal blocks<\/li>\n<li data-section-id=\"n0t7dg\" data-start=\"11316\" data-end=\"11338\">Wiring configuration<\/li>\n<li data-section-id=\"170jx58\" data-start=\"11339\" data-end=\"11362\">Enclosure integration<\/li>\n<li data-section-id=\"tmw7w3\" data-start=\"11363\" data-end=\"11387\">Nameplate and branding<\/li>\n<\/ul>\n<p data-start=\"11389\" data-end=\"11586\">The transformer can be manufactured according to the customer&#8217;s <strong data-start=\"11453\" data-end=\"11545\">electrical schematic, technical drawing, equipment specification or control-panel layout<\/strong>.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-2686755548\" class=\"accordion-item\">\n\t\t<a id=\"accordion-2686755548-label\" class=\"accordion-title plain\" href=\"#accordion-item-14.-what-information-should-i-provide-to-get-a-quotation-for-a-bk-control-transformer?\" aria-expanded=\"false\" aria-controls=\"accordion-2686755548-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>14. What information should I provide to get a quotation for a BK control transformer?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-2686755548-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-2686755548-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"11684\" data-end=\"11768\">For an accurate quotation, provide as much of the following information as possible:<\/p>\n<p data-start=\"11770\" data-end=\"12325\"><strong data-start=\"11770\" data-end=\"11793\">1. Primary voltage:<\/strong> e.g. 380V, 400V, 415V, 440V or 480V<br data-start=\"11829\" data-end=\"11832\" \/><strong data-start=\"11832\" data-end=\"11857\">2. Secondary voltage:<\/strong> e.g. 24V, 110V, 120V or 220V<br data-start=\"11886\" data-end=\"11889\" \/><strong data-start=\"11889\" data-end=\"11911\">3. Rated capacity:<\/strong> VA or kVA<br data-start=\"11921\" data-end=\"11924\" \/><strong data-start=\"11924\" data-end=\"11941\">4. Frequency:<\/strong> 50Hz or 60Hz<br data-start=\"11954\" data-end=\"11957\" \/><strong data-start=\"11957\" data-end=\"11970\">5. Phase:<\/strong> single-phase or three-phase, if applicable<br data-start=\"12013\" data-end=\"12016\" \/><strong data-start=\"12016\" data-end=\"12031\">6. Winding:<\/strong> copper or aluminum<br data-start=\"12050\" data-end=\"12053\" \/><strong data-start=\"12053\" data-end=\"12071\">7. Insulation:<\/strong> Class B, F or H<br data-start=\"12087\" data-end=\"12090\" \/><strong data-start=\"12090\" data-end=\"12109\">8. Application:<\/strong> CNC machine, machine tool, control cabinet, automation equipment, etc.<br data-start=\"12180\" data-end=\"12183\" \/><strong data-start=\"12183\" data-end=\"12203\">9. Installation:<\/strong> dimensions, mounting holes and terminal requirements<br data-start=\"12256\" data-end=\"12259\" \/><strong data-start=\"12259\" data-end=\"12276\">10. Quantity:<\/strong> sample, small batch, wholesale or OEM production<\/p>\n<p data-start=\"12327\" data-end=\"12523\">For custom projects, providing the <strong data-start=\"12362\" data-end=\"12420\">electrical schematic or existing transformer nameplate<\/strong> can significantly speed up technical evaluation and quotation<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n\t<div id=\"accordion-2836266585\" class=\"accordion-item\">\n\t\t<a id=\"accordion-2836266585-label\" class=\"accordion-title plain\" href=\"#accordion-item-15.-do-you-supply-bk-control-transformers-for-wholesale,-oem-and-international-projects?\" aria-expanded=\"false\" aria-controls=\"accordion-2836266585-content\" >\n\t\t\t<button class=\"toggle\" aria-label=\"Toggle\"><i class=\"icon-angle-down\"><\/i><\/button>\n\t\t\t<span>15. Do you supply BK control transformers for wholesale, OEM and international projects?<\/span>\n\t\t<\/a>\n\t\t<div id=\"accordion-2836266585-content\" class=\"accordion-inner\" aria-labelledby=\"accordion-2836266585-label\" >\n\t\t\t\n<p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"12623\" data-end=\"12876\">Yes. VoltNex Power provides <strong data-start=\"12651\" data-end=\"12745\">factory-direct BK Series industrial control transformer manufacturing and wholesale supply<\/strong> for OEM machine builders, distributors, electrical panel manufacturers, automation companies and industrial equipment integrators.<\/p>\n<p data-start=\"12878\" data-end=\"13251\">Standard and customized transformers can be supplied for projects in <strong data-start=\"12947\" data-end=\"13061\">North America, Europe, Latin America, the Middle East, Asia-Pacific and other international industrial markets<\/strong>. OEM\/ODM services can include custom electrical specifications, mechanical dimensions, nameplates, private labeling, packaging and volume production.<\/p>\n<p data-start=\"13253\" data-end=\"13410\">For bulk orders, customers can request a quotation based on <strong data-start=\"13313\" data-end=\"13409\">model, VA\/kVA capacity, voltage, quantity, customization requirements and destination market<\/strong>.<\/p>\n\t\t<\/div>\n\t<\/div>\n\t\n<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1271439892\">\n\n\t<div id=\"col-450542001\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f280-o1\" lang=\"en-US\" dir=\"ltr\" data-wpcf7-id=\"280\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/es_ec\/wp-json\/wp\/v2\/pages\/2882#wpcf7-f280-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Contact form\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/es_ec\/wp-json\/wp\/v2\/pages\/2882#wpcf7-f280-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"280\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"en_US\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f280-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class='custom_contact_style'>\n\t<div class=\"row row-small\">\n\t\t<div class=\"col medium-6 small-12 large-6\">\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Name*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t\t\t<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"col medium-6 small-12 large-6\">\n\t\t\t<div class=\"col-inner\">\n\t\t\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"E-mail*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t\t\t<\/p>\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n\t<div class='cus_contact_form_bottom'>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-phone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Phone\" value=\"\" type=\"text\" name=\"your-phone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class='cus_contact_form_bottom'>\n\t\t<p><span 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