What is a Current Transformer (CT)?

The current transformer (CT) is a non-intrusive device used to measure the electrical current from a load. The 3 most important current transformer criteria are:

  • Safety certified by organizations such as UL, CSA, ETL, NRTL, etc. (Most of our CTs are UL recognized for USA and Canada)
  • Accurate (Most of our CT models fall within +/-1% accuracy)
  • Proper style for the application.There are two general styles of current transformers:
    • Closed CT
    • Split-Core CT

Posted in: Current Transformer (CT) Selection, Installation

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