4NO4 Split Core Current Transformer


The Model 4NO4 is an IEC IP68 waterproof rated split-core current transformer with a non-corrosive core housed in a high temperature ultraviolet black polycarbonate resistant case. The current transformer is encapsulated for additional submersible applications. The 4NO4 has a hinged top for easy installation over insulated live conductors or bare conductors at ground (earth) potential.



  • 1.25” Window.
  • Submersible Split Core Current Transformer.
  • Indoor or Outdoor.
  • For measuring ground wire currents.
  • 100% Encapsulated.
  • Non-corrosive magnetic core.
  • 35’ sheathed lead wires standard.
  • Input Current: AC, single phase 50/60Hz.
  • Voltage Rating: 600VAC.
  • Output Voltage: up to 10VAC.
  • Standard Accuracy: Class 1.0 (+/- 1%).
  • Optional Accuracies: lass 0.5, 0.2.
  • Phase: Less than 60min.
  • Low Output Ω: Depends on Output.
  • Temperature Range: -40°C to 70°C.
  • Lead Wires: 35ft. twisted black/white sheathed. 18AWG per UL1015.
  • UL Listed E361441 to meet UL2808.
  • Weatherproof IEC IP68W.


Extra Information

UL Listed, NEMA 6P/ IP68W
Mounting Type
Flying Leads split-core
CT Type
Split Core