The BK Series Enclosed Dry Type Control Transformer is designed to provide reliable, isolated and stable control power for industrial machinery, CNC equipment, electrical control panels and automation systems. Its enclosed construction provides additional protection for the transformer and internal electrical components, making it suitable for industrial equipment where a compact and protected control power solution is required.
Voltnex Power manufactures BK Series control transformers with customized input and output voltages, rated capacity, winding configuration, insulation class and mounting dimensions. Copper or aluminum windings can be supplied according to application requirements.
The BK Series is suitable for OEM equipment manufacturers, industrial automation integrators, electrical panel builders and wholesale distributors requiring dependable control transformers for machinery and electrical control systems.
Key Features
- Enclosed dry type construction
- Single-phase and customized configurations available
- Rated capacity from small control circuits to higher-power auxiliary applications
- 50Hz / 60Hz operation
- Copper or aluminum winding options
- Class B, F or H insulation systems
- Natural air cooling for standard applications
- Multiple input and output voltage combinations
- Compact structure for electrical equipment and control cabinets
- Panel, base or customized mounting options
- OEM and ODM manufacturing available
- Custom electrical and mechanical specifications
Technical Specifications
Technical specifications can be customized according to the electrical and mechanical requirements of the application.
Reliable Control Power for Industrial Equipment
Industrial control systems require a dependable auxiliary power source for relays, contactors, PLC circuits, solenoid valves, control switches, indicators and other low-voltage components. The BK Series Enclosed Dry Type Control Transformer reduces the supply voltage to the required control voltage while providing electrical isolation between the primary and secondary circuits.
Typical configurations include:
380V / 400V / 415V → 110V / 120V / 24V
and
440V / 480V / 600V → 120V / 24V
Custom voltage combinations are available for OEM machinery and electrical control systems.
The transformer can be selected according to the continuous control load as well as the temporary inrush requirements of contactors, relays and other inductive devices.
Enclosed Construction for Industrial Applications
Compared with an open-frame control transformer, the enclosed BK Series provides a protected housing around the transformer assembly. This construction is suitable for installation inside or alongside industrial electrical equipment where additional physical protection is required.
The enclosure can also be customized according to installation space, mounting method and required protection level.
For standard indoor applications, IP20 construction can be used. Higher protection levels can be considered for specific industrial environments when required by the application.
Applications
The BK Series Enclosed Dry Type Control Transformer is commonly used for:
- CNC machine control systems
- Machine tools
- Industrial automation equipment
- Electrical control panels
- PLC and relay control circuits
- Motor control cabinets
- Contactors and starters
- Solenoid valve circuits
- Industrial signal and indicator systems
- Conveyor and production-line equipment
- Robotic and automated machinery
- Auxiliary power systems
- OEM electrical equipment
Its compact enclosed construction makes it suitable for both new equipment design and replacement of existing control transformers.
Flexible Voltage and Capacity Configuration
Different machines and control systems require different control voltages. Voltnex Power can configure the BK Series according to the customer’s primary supply, secondary control voltage and required power capacity.
Common primary voltages include 208V, 220V, 240V, 380V, 400V, 415V, 440V, 480V, 575V and 600V, while secondary voltages can be configured for 12V, 24V, 48V, 110V, 120V, 220V and other requirements.
Multi-tap or multi-winding configurations can also be considered when one transformer needs to supply several control circuits.
Capacity selection should consider the total continuous load, starting or inrush current, future load requirements and the operating environment.
OEM & ODM Control Transformer Manufacturing
Voltnex Power provides custom control transformer manufacturing for equipment manufacturers, distributors, system integrators and industrial electrical projects.
Customization can include:
- Rated capacity
- Primary and secondary voltage
- Frequency
- Copper or aluminum winding
- Insulation class
- Multi-winding configuration
- Terminal arrangement
- Enclosure dimensions
- Mounting holes and brackets
- Nameplate and labeling
- Electrical and mechanical specifications
Customers can provide drawings, electrical specifications or existing transformer information for engineering review and customized production.
Why Choose Voltnex Power?
As a China manufacturer and supplier of industrial power equipment, Voltnex Power provides control transformers for machinery, automation and electrical control applications.
Our BK Series products are manufactured for OEM, ODM, wholesale and project supply, with customized electrical specifications available for different international markets.
We support customers from initial specification and transformer selection through production, testing and delivery.
For applications requiring a compact, protected and reliable source of isolated control power, the BK Series Enclosed Dry Type Control Transformer provides a flexible solution for industrial machinery and electrical control systems.
Contact Voltnex Power for BK Series control transformer specifications, custom configurations and OEM/ODM quotations.
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