Isolation Transformers · Machine Tool Control Transformers

BK Industrial Machine Tool Control Transformer (25 VA – 5000 VA)

BK series control transformers designed for machine tool control circuits, local workplace lighting, and signaling indicator lamps across 50/60Hz circuits up to 500V. Stepping down 380V/220V to 36V/24V/12V/6V.

Technical Specifications

Rated Capacity 25VA, 50VA, 100VA, 150VA, 250VA, 500VA, 1000VA, 2000VA, 5000VA
Primary Voltage 380V, 220V AC (Multi-tap input)
Secondary Voltage 36V, 24V, 12V, 6V AC
Frequency 50 Hz / 60 Hz
Installation DIN Rail or Base Plate Screw Mount
Model BK-25~50VA A: 56±0.5 mm, C: 53±2 mm, Bmax: 80 mm, Dmax: 74 mm, Emax: 85 mm, K×J: 4.8×9 mm
Model BK-100VA A: 64±0.5 mm, C: 65±2 mm, Bmax: 86 mm, Dmax: 84 mm, Emax: 92 mm, K×J: 4.8×9 mm
Model BK-150VA A: 84±0.5 mm, C: 80±2 mm, Bmax: 96 mm, Dmax: 97 mm, Emax: 110 mm, K×J: 5.8×11 mm
Model BK-200VA A: 84±0.5 mm, C: 87±2 mm, Bmax: 96 mm, Dmax: 105 mm, Emax: 110 mm, K×J: 5.8×11 mm
Model BK-250VA A: 84±0.5 mm, C: 90±2 mm, Bmax: 96 mm, Dmax: 110 mm, Emax: 110 mm, K×J: 5.8×11 mm
Model BK-300VA A: 90±0.5 mm, C: 98±2 mm, Bmax: 120 mm, Dmax: 120 mm, Emax: 125 mm, K×J: 7×13 mm
Model BK-400~500VA A: 90±0.5 mm, C: 104±2 mm, Bmax: 135 mm, Dmax: 128 mm, Emax: 125 mm, K×J: 7×13 mm
Model BK-700VA A: 110±0.5 mm, C: 97±2 mm, Bmax: 152 mm, Dmax: 125 mm, Emax: 147 mm, K×J: 7×13 mm
Model BK-1000VA A: 111±0.5 mm, C: 113±2 mm, Bmax: 170 mm, Dmax: 148 mm, Emax: 165 mm, K×J: 7×13 mm

Product Information

Status

Published

Product ID

XH-BK-CTRL

Last Updated

2026-09-24 08:45:14

Technical Highlights

  • Factory-direct China pricing with full IEC 60076 type test certification

Application Scenarios

  • CNC Machine Tools, Switchgear Control Panels, Safety Lighting, Signal Indicators

Key Features

  • Galvanic isolation for 50/60Hz AC circuits with voltages up to 660V
  • Pure copper conductor windings with heavy-duty thermal insulation
  • Custom voltage ratios (e.g. 220V to 380V, 480V to 220V, 415V to 380V)

Frequently Asked Questions

Request BK Control Transformer Selection Table

IEC 61558-2-2, CE, ISO 9001

Reinforced carton box, in stock for standard ratings

Related Markets & Resources

Standards & Compliance

IEC 61558-2-2, CE, ISO 9001

Packaging, Delivery & Service

Reinforced carton box, in stock for standard ratings

Request BK Control Transformer Selection Table

Ready to Proceed?

Request a Quote for BK Industrial Machine Tool Control...

Share your project scope and we'll respond within 24 hours.