BK
BK Series Single-Phase Dry-Type Control Transformer (50VA to 50kVA) The BK series single-phase control transformer is specially designed as a reliable control power supply for machine tools, industrial automation equipment, electrical switchgears, and localized lighting. Built with high-permeability silicon steel sheets and premium copper windings, it delivers stable voltage output, compact design, low energy loss, and exceptional overload endurance. Power Capacity: 50VA – 50kVA (Customizable) Input/Output Voltage: Primary 220V, 380V, 415V, 440V to Secondary 12V, 24V, 36V, 110V, 220V (Multi-Tap available) Key Features: Dry-type insulation, flame-retardant terminal blocks, low noise & low heat generation Service: Direct Manufacturer Pricing | OEM/ODM Customization | Fast Delivery
The BK Series Single-Phase Control Transformer is an essential power conversion solution widely used in industrial automation systems, machine tool control circuits, signal light supplies, and control panel assemblies. Engineered for step-down or isolation applications, the BK transformer ensures continuous, safe, and highly stable low-voltage operation for sensitive relay systems and modern electronic controllers.
Manufactured with high-quality cold-rolled silicon steel laminations and heat-resistant insulated copper wire, our BK dry-type control transformers comply with IEC 60076, ISO9001 international safety standards, making them a trusted choice for OEM machinery manufacturers and panel builders worldwide.
Multi-Voltage Taps (Customizable): Flexible primary and secondary multi-tap voltage design to meet various international electrical grid standards (e.g., 380V/220V input to 24V/110V output).
Compact & Rugged Construction: Small footprint with sturdy mounting brackets, allowing easy integration inside compact electrical control cabinets.
Low Noise & High Efficiency: Precision-stacked core structure reduces core loss, magnetic leakage, and acoustic noise during long hours of continuous operation.
Safe Terminal Block Design: Equipped with insulated, flame-retardant terminal blocks and clear wire marking tags for easy and safe wiring connections.
Superior Overload Resistance: Exceptional thermal endurance (Class B/F/H insulation options available) designed to handle inductive inrush current from motor contactors and relays.
| Parameter | Specifications / Range |
| Product Model | BK Series Single-Phase Control Transformer |
| Rated Capacity | 50VA, 100VA, 150VA, 250VA, 300VA, 400VA, 500VA, 1kVA, 2kVA, 5kVA – 50kVA or Customization |
| Input Voltage (Primary) | 220V, 380V, 415V, 440V, or specified multi-taps |
| Output Voltage (Secondary) | 6.3V, 12V, 24V, 36V, 110V, 127V, 220V, or specified multi-taps |
| Frequency | 50 Hz / 60 Hz |
| Number of Phases | Single Phase |
| Cooling Method | Air Natural (AN) / Dry Type |
| Insulation Class | Class B (Standard), Class F / H (Optional) |
| Efficiency | ≥ 98% |
| Compliance Standards | IEC 60076, CE, ISO 9001 |
