Current Transformers

Versatile current and voltage transformers

REO current transformers are particularly characterized by their compact design, excellent linearity, short response time, and low iron and remagnetization losses. The WKO-2C-B current transformer with dual-core technology and Hall effect features an extended frequency range up to 120 kHz and precise phase response. These current transformers guarantee an improved measurement accuracy of 0.5% across the entire frequency range: DC up to 120 kHz. Furthermore, they feature better drift compensation and an extended temperature range from -40°C to 85°C. Customized for their specific application, they comply with DIN EN 50178 as a standard regulation.

Advantages of Current Transformers

  • Safe, electrically isolated primary and secondary circuits
  • High current measurement accuracy
  • Non-critical for overload currents
  • High reliability
  • Robust housing designs (horizontal/vertical mounting) with different variants for push-through openings
  • Variable connections (terminals, plugs, flat plugs, cables, etc.)
  • Vibration and shock test in accordance with DIN EN 61373 category 1 class B (only for WKO and WDI types in AT housing)

Power spectrum of REO current transformers*

Parameters Symbol Value
Nominal primary current IPN 0 to 3.000 [A]
Maximum rated primary current ImaxPN 1,2 to 2 fach [IPN]
Secondary current IaN 0 to 1.000 [mA]
Ambient temperature TA -40 to +85 [°C]
Insulation test voltage VP 6 [kVac]

* The development of components based on customer specifications is a matter of course for us