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Current Transformers

Littelfuse offers a variety of current transformers to detect phase currents, ground-fault currents, and low levels of earth-leakage currents before they cause serious damage. Installing one of our current transformers maximizes protection of electrical components.
  • CT secondary current ratings from 50 mA to 5 A
  • Inner diameters from 25.4 mm to 210 mm
  • Typical insulation levels of 600 V
  • Wide range of turns ratios up to 800:1
  • Flux conditioner available or included with several versions
  • Low weight

Current Transformers Parts

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Current Transformers Applications

Highlights Section

  • Current monitors
  • Ground-fault relays
  • Neutral grounding resistors