Current Sense Transformers


Current sensing is a critical element of most power supplies. Addressing the technological needs of the next generation of power supplies WCM has developed a number of products for both linear and switched applications. The design philosophy embodied in these products was to create very compact, highly linear, magnetic based current sensors, with robust isolation to satisfy global safety agency requirements. For switched applications WCM has a number of sensing transformers that can accommodate up to 50 amps of current, in both through-hole and surface mount configuration, with a frequency range from 10 kHz to 500 kHz. On the linear side, WCM offers a great through hole product with a highly linear response up to 500 amps.  If you don’t see what you want in our standard products, contact us for a custom design.


604 current sense transformers

WCM604 Series Current Sense Transformer

  • High accuracy
  • 50 Hz to 1000 Hz operation
  • 100 amp continuous rating
  • High isolation
601 100 khz current sense transformers

WCM601 Series Current Sense Transformer

  • Sense current to 30 amps
  • 10kHz to 600kHz sense frequency
  • 3000 Vac isolation
  • Horizontal and vertical mount
602 45 Amp current sense transformers

WCM602 Series Current Sense Transformer

  • Sense current to 45 amps
  • 10kHz to 500kHz sense frequency
  • 3750 Vac isolation
  • Horizontal and vertical mount
603 current sense transformers

WCM603 Series Current Sense Transformer

  • Sense current to 20 amps
  • Sense frequency to 1 MHz
  • 3000 Vac isolation
  • Low profile SMD
  • Tape and reel
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