25VA–50kVA
Rated Capacity
Range

Lighting & Control
Machine Tools &
Auxiliary Power

Safety Isolation
Stable Circuits &
Local Illumination

OEM & ODM
Custom Voltage &
Enclosure Design

 

 

JMB Series low voltage dry type isolation transformers for industrial equipment, electrical control systems and power distribution applications

JMB Series Lighting & Control Transformers

Voltnex Power manufactures JMB Series lighting and control transformers for industrial control circuits, machine tools, CNC equipment, auxiliary power systems and safety lighting applications. Designed for AC circuits operating at 50Hz or 60Hz, JMB transformers provide reliable voltage conversion and electrical isolation where stable auxiliary power is required.

Standard capacities cover 25VA to 50kVA, with customized primary and secondary voltages, VA ratings, terminal configurations, mounting dimensions and enclosure designs available for OEM and industrial applications.

Key Features


  • 25VA–50kVA Capacity Range

  • 50Hz / 60Hz Operation

  • Custom Voltage & VA Rating

  • Reliable Electrical Isolation

  • Compact & Durable Design

  • OEM / ODM Available

  • Global Shipping & Wholesale

 

 

Applications

Ideal for a wide range of industrial and commercial applications

Machine Tools

Control and auxiliary power for machine tools and mechanical equipment.

CNC Equipment

Provides suitable control voltage for CNC machine control circuits and auxiliary systems.

Industrial Control Panels

Used for control circuits, relays, contactors and other electrical components.

Safety & Auxiliary Lighting

Suitable for auxiliary lighting and indicator lighting circuits.

Factory Automation

Supports auxiliary power for automated production equipment.

Electrical Equipment

Used in industrial electrical equipment and control systems.

Production Machinery

Provides isolated or converted auxiliary power for machinery control systems.

Control Cabinets

Designed for installation inside electrical control cabinets and machine panels.

Technical Specifications

TECHNICAL FEATURE TECHNICAL SPECIFICATION
Product Type JMB Series Lighting & Control Transformer
Application Lighting, Control & Auxiliary Power
Rated Capacity 25VA – 50kVA
Frequency 50Hz / 60Hz
Phase According to design
Input Voltage Customizable
Output Voltage Customizable
Winding Material Copper / Customized
Insulation Class According to design
Cooling Natural Air Cooling
Installation Indoor / Cabinet / Equipment Installation
Terminal Configuration Custom
Mounting Dimensions Custom
Enclosure Open / Enclosed options
Application Machine Tools, CNC, Automation, Control Panels, Lighting
Customization OEM / ODM Available

Model Range

Standard JMB Capacity Range: 25VA – 50kVA

MODEL BMAX CMAX DMAX
JMB-25 140 160 122
JMB-50 140 160 122
JMB-100 140 160 122
JMB-150 150 170 132
JMB-200 150 170 132
JMB-250 170 200 150
JMB-300 170 200 150
JMB-400 200 220 170
JMB-500 200 220 170
JMB-600 200 220 170
JMB-800 210 280 180
JMB-1000 210 280 180
JMB-1200 210 280 180
JMB-1500 250 325 220
JMB-2KVA 250 325 220
MODEL BMAX CMAX DMAX
JMB-2.5KVA 250 350 240
JMB-3KVA 250 350 240
JMB-4KVA 355 340 285
JMB-5KVA 355 340 285
JMB-6KVA 355 340 285
JMB-7KVA 355 340 285
JMB-8KVA 400 390 320
JMB-10KVA 400 390 320
JMB-12.5K 400 390 320
JMB-15KVA 480 400 520
JMB-20KVA 480 400 520
JMB-25KVA 550 450 580
JMB-30KVA 550 450 580
JMB-40KVA 600 500 660
JMB-50KVA 800 500 660

Customization & OEM / ODM

Need a Different Voltage, VA Rating or Mounting Size?

Voltnex Power manufactures customized JMB Series lighting and control transformers according to your equipment and electrical requirements. We can customize primary voltage, secondary voltage, rated capacity, frequency, winding configuration, terminal arrangement, mounting dimensions, insulation requirements and enclosure design for OEM machine builders, industrial automation projects and control-panel applications.


Custom
Voltage

Custom
VA Rating

Custom
Frequency

Custom
Windings

Custom
Terminals

Custom
Dimensions

OEM /
ODM

Bulk
Production

OEM & ODM Manufacturing

From prototype quantities to bulk production, Voltnex Power supports OEM and ODM requirements for JMB transformers. Customers can provide electrical drawings, existing samples, nameplate specifications, installation dimensions or load requirements, and our engineering team will develop the transformer according to your needs.

 

 

Factory & Quality Testing

Reliable Manufacturing, Strict Quality Control & Comprehensive Inspection.

100%
Full Load Inspection

ISO 9001
Certified Process

0 Defect
Quality Target

Standard Factory Routine Tests Include:
✓ Winding Resistance Test
Ensures copper/aluminum coil integrity

✓ Output Voltage Verification
Accurate ratio & stable voltage output

✓ Insulation Resistance Test
High-voltage megohmmeter safety check

✓ Terminal & Wiring Inspection
Secure connections & torque verification

✓ Dielectric Withstand Test (Hi-Pot)
Over-voltage safety endurance check

✓ Mechanical & Dimensional Check
Strict adherence to engineering drawings

✓ Voltage Ratio & Polarity Test
Verifies winding turns and phase accuracy

✓ Nameplate & Label Verification
Clear specifications & safety warnings

✓ No-Load Current & Loss Test
Energy efficiency & core loss assessment

✓ Final Quality & Coating Inspection
Appearance, rust prevention & packaging

🛡️ Pre-Shipment Tested
📄 FAT Report Attached
🔒 Secure Export Packaging

Quality Guarantee: Every JMB transformer undergoes strict routine inspection according to specified electrical, mechanical, and safety requirements prior to dispatch. Individual Factory Test Reports (FAT) are provided upon request.

Standards & Compliance

IEC
IEC 61558-2-2
Safety of Transformers & Power Units

Compliance Highlights:
International Standards: Designed and manufactured in compliance with global IEC/EN standards.
Eco & Safety: Built using RoHS compliant insulation and high-grade flame-retardant materials.
Custom Standards: UL, CE, or regional standard compliance can be provided based on project requirements.

Quality Certification Services:
Factory Acceptance Test (FAT): Client or third-party witness testing supported before dispatch.
Traceable Test Reports: Full test serial tracking archive provided with every batch.
Third-Party Inspection: Compatible with SGS, TÜV, or Intertek quality auditing.

Applicable standards depend on specific project needs and destination markets. Contact us for custom compliance docs.

FREQUENTLY ASKED QUESTIONS

The JMB Series Lighting Batten Control Transformer is a low voltage dry type transformer designed for machine lighting, control circuits and auxiliary power applications. It is used in industrial machinery, machine tools, CNC equipment, electrical control panels, control cabinets and factory automation systems. Depending on the specified winding configuration, it can provide voltage conversion and electrical isolation between the primary and secondary circuits. The JMB Series is available from 25VA to 50kVA, with customized voltage, frequency, winding and mounting configurations available for industrial equipment manufacturers and OEM applications.

A Lighting Batten Control Transformer is used to provide a suitable electrical supply for machine lighting, control circuits and auxiliary loads within industrial equipment. Common applications include machine tools, CNC machines, industrial automation equipment, electrical control cabinets, production machinery and factory equipment. It can supply power to machine lights and other specified low voltage circuits while helping separate the auxiliary circuit from the main power supply. The required transformer capacity and voltage configuration depend on the connected load and equipment design.

The JMB Series covers a wide 25VA–50kVA capacity range, allowing the same product family to serve different industrial control and auxiliary power requirements. Lower VA ratings can be used for machine lighting and smaller control circuits, while higher VA and kVA ratings can support larger industrial equipment and auxiliary electrical loads. Available ratings include small VA-rated models as well as larger kVA configurations up to 50kVA. The correct transformer rating should be selected according to continuous load, starting current, inrush current and the electrical requirements of the application.

The primary input voltage and secondary output voltage can be configured according to the customer’s electrical requirements. This allows the transformer to be used with different industrial power systems, machinery and control circuits. Customers can specify the required input voltage, output voltage, capacity and frequency when requesting a quotation. For OEM equipment, the transformer can also be manufactured according to an existing electrical drawing or transformer specification. This flexibility makes the JMB Series suitable for custom low voltage control transformer and industrial auxiliary power applications.

Selecting the correct control transformer size requires consideration of the total connected load, operating voltage, frequency and expected inrush current. For machine lighting and simple control circuits, the continuous VA requirement is an important factor. For equipment containing contactors, relays, solenoids, motors or other inductive loads, the starting or inrush VA may be significantly higher. The transformer should therefore have sufficient capacity to maintain the required secondary voltage during operation. Voltnex Power can help customers select an appropriate 25VA–50kVA control transformer based on the equipment load and application.

Yes. The JMB Series is suitable for CNC machines, machine tools, machining equipment and industrial production machinery. Machine tool applications may require separate power for machine lighting, control circuits and auxiliary electrical components. A properly specified control transformer can provide the required secondary voltage while supporting reliable operation of these circuits. The transformer can also be designed for installation within a machine electrical cabinet or control panel. Custom voltage, VA rating, terminals and mounting dimensions can be considered for OEM machine tool applications.

Yes. Machine lighting transformer and auxiliary lighting applications are important uses for this product family. The transformer can provide a suitable low voltage supply for lighting installed on machine tools, CNC equipment, production machinery and industrial workstations. Depending on the electrical design, the lighting circuit can be separated from the main equipment power circuit through transformer isolation. The required secondary voltage and capacity should be selected according to the lighting equipment and total connected load.

A control transformer is generally designed to supply power to control and auxiliary circuits, while an isolation transformer emphasizes electrical separation between the primary and secondary circuits. In industrial equipment, a transformer may perform both functions when designed with separate primary and secondary windings and appropriate insulation. The JMB Series can therefore be configured for applications requiring control power, auxiliary power, voltage conversion and electrical isolation. The exact performance depends on the customer’s specified winding, insulation and electrical configuration.

Yes. The JMB Series is a low voltage dry type control transformer and does not use insulating oil as the transformer medium. Dry type construction is widely used for industrial machinery, control cabinets, electrical equipment and indoor automation systems. It is particularly convenient where a compact transformer solution without liquid insulation is preferred. Depending on the design, the transformer can be installed inside electrical cabinets, machine control enclosures or other suitable industrial equipment.

Yes. The JMB Series can be designed for control panel, electrical cabinet and machine cabinet installation. The physical configuration can be matched to the available installation space, including mounting dimensions, terminal positions and connection arrangements. This makes the transformer suitable for control-panel builders, machine manufacturers and industrial automation companies. Before ordering, customers should provide the available installation dimensions and required electrical specifications so the transformer manufacturer can confirm the appropriate mechanical and electrical configuration.

Yes. The transformer can be designed for 50Hz or 60Hz operation, depending on the requirements of the industrial power system. Frequency should be confirmed together with the rated primary and secondary voltage because the magnetic core and winding design must be appropriate for the specified operating conditions. Supporting both common industrial frequencies allows the product to be configured for equipment and electrical systems used in North America, South America, Europe, Asia, Australia and other international markets.

Yes. Voltnex Power provides custom control transformer configurations for industrial and OEM applications. Customers can request specific primary and secondary voltages as well as the required VA or kVA rating, frequency, winding configuration, insulation requirements, terminal arrangement and mounting dimensions. Custom transformer manufacturing is particularly useful when an existing standard transformer does not match the electrical or mechanical requirements of a machine, control cabinet or automation system.

Yes. Voltnex Power supports OEM and ODM control transformer manufacturing for machine builders, CNC equipment manufacturers, industrial automation companies, control-panel manufacturers and electrical equipment suppliers. Customers can provide technical drawings, transformer specifications, nameplate information or application requirements for evaluation. The transformer can then be configured according to the required capacity, voltage, frequency, winding arrangement, terminals and physical dimensions. This allows the JMB Series to be integrated into customized industrial machinery and electrical control systems.

Yes. Voltnex Power supplies Lighting Batten Control Transformers for wholesale, bulk purchasing, OEM production and industrial equipment projects. Bulk customers may include electrical distributors, industrial transformer suppliers, machine manufacturers, automation companies, control cabinet builders and electrical system integrators. Production can be arranged according to approved specifications and order quantities. Factory-direct manufacturing also allows customized electrical and mechanical configurations for customers who require a consistent transformer design across multiple equipment models or projects.

To select the correct transformer, customers should provide the rated capacity in VA or kVA, primary voltage, secondary voltage, frequency, phase, application and quantity. For machine tools and industrial equipment, it is also useful to provide the connected load, starting or inrush current and available installation space. For OEM projects, an electrical schematic, existing transformer nameplate, technical drawing or equipment specification can help determine the correct design. Voltnex Power can provide customized Lighting Batten Control Transformer, low voltage control transformer and industrial auxiliary power transformer solutions for OEM, ODM, wholesale and bulk applications.