Product Overview

The BK Series Single-Phase Control Transformer is specially designed for industrial machine tools and automation equipment. It efficiently steps down 480V input voltage to stable 120V control power, providing safe, stable, and clean power supply for industrial control circuits.

Widely used in North American standard machine tools, imported equipment retrofits, automation control cabinets, and industrial electrical systems, the BK transformer delivers reliable power support for industrial control applications.

Key Features

Accurate Voltage Conversion & Stable Output

Designed for 480V to 120V voltage conversion, the transformer provides an accurate transformation ratio, stable output voltage, and strong load capacity.

Features include:

• 480V input / 120V output

• Efficiency ≥95%

• Stable voltage under load

• No waveform distortion

• Strong continuous-duty performance

• 50/60Hz dual-frequency compatibility

Suitable for powering:

• Contactors

• Solenoid valves

• Indicator lights

• PLC control systems

• Industrial control circuits

The stable output effectively reduces the impact of voltage fluctuations on sensitive equipment.

100% Copper Winding for Long Service Life

The transformer uses high-purity enameled copper windings instead of aluminum, ensuring excellent conductivity and reliable long-term operation.

Advantages:

• Lower electrical resistance

• Better heat dissipation

• Lower operating temperature rise

• Strong anti-aging performance

• Improved overload capability

• Longer service life

The winding is treated with a professional vacuum varnish impregnation process, forming an insulating resin layer that further improves insulation performance and reduces temperature rise during continuous operation.

Premium Silicon Steel Core for Energy Efficiency

Built with high-magnetic-flux silicon steel laminations, the transformer offers low core loss, reduced noise, and energy-efficient operation.

Benefits:

• Low power consumption

• Reduced operating noise

• Lower heat generation

• Higher efficiency

• Improved load capacity

• Stable long-term operation

The optimized magnetic circuit design improves overall transformer performance and operational reliability.

Enhanced Safety Protection

The BK control transformer is designed for reliable industrial operation with excellent insulation and stable electrical performance.

Safety advantages:

• Reduced leakage and short-circuit risks

• Stable control power supply

• Enhanced operator safety

• Reliable industrial-grade insulation performance

The transformer also features:

• Secure terminal structure

• Easy wiring installation

• Stable electrical connection

• Convenient maintenance access

Flexible Customization for Various Applications

Both input and output voltages can be customized according to application requirements.

In addition to 480V to 120V models, customized voltage options are available for:

• Machine tools

• Automation equipment

• Control cabinets

• Imported equipment retrofits

• Industrial production systems

OEM and special specification customization are supported.

Technical Specifications

Typical Applications

The BK 480V to 120V Control Transformer is widely used in:

• CNC machine tools

• Industrial automation equipment

• North American standard machinery

• PLC control systems

• Electrical control cabinets

• Production lines

• Imported equipment voltage conversion

• Industrial power control systems

Why Choose BK Series Control Transformers?

• Stable 480V to 120V voltage conversion

• Genuine 100% copper winding

• High-efficiency silicon steel core

• Industrial-grade durability

• Low temperature rise & low noise

• Flexible customization support

• Suitable for continuous industrial operation

Customization Service

We provide customized solutions, including:

• Input/output voltage

• Capacity range

• Terminal configuration

• Frequency options

• Mounting structure

• OEM branding

Contact us for technical support, product drawings, and a quotation.