New Products

  • Series WKO-2C

    Double core technology closed-loop current transformers

    Series WKO-2C
    • Primary rated current: 500 - 2000 A
    • Messbereich: 0...3000 A
    • Frequency range: 120000 Hz

    REO has developed new generation of closed loop (C/L) current transducers which guarantees increased current measurement accuracy better than 0.3% in the whole frequency range: DC to 140 kHz.


    The new current transducer type WKO-2C is a completely new development utilizing REO’s double core technology magnetic design. The unit uses the latest hall effect elements with an extended frequency response up to 120 kHz and accurate phase response.


    Completely redesigned electronics ensures that the new C/L current transducer has better drift compensation and an extended temperature range from -40°C to 85°C.



    • According to: EN 50178:1997, UL 94-V0

    • Frequency range: (-3 dB) DC...140 kHz



    Typical applications



    • Variable speed control of 3-phase AC-motor and servo motor drives

    • Industrial inverters

    • Uninterruptable power supplies

    • All types of switched mode power supplies

    • Power supplies for welding applications



  • Series WKO-2C-B

    Double core technology closed-loop current transformers for railway engineering

    Series WKO-2C-B
    • Primary rated current: 500 - 2000 A
    • Messbereich: 0...3000 A
    • Frequency range: 120000 Hz

    The current transducer WKO-2C-B with hall effect elements and double-core  technology has an extended frequency response up to 140 kHz and an accurate phase response. The WKO-2C-B guarantees an increased current measurement accuracy better than 0.3% in the whole frequency range: DC to 140 kHz.


    A completely redesigned electronics ensures that the new C/L current transducer has better drift compensation and an extended temperature range from -40°C to 85°C.


    Modular design


    The current transformer has a modular design which allows a variety of mounting options. The cost-effective basic model consists of a housing with screw terminals, bushing for cable and holes for fixing. Optionally, the transducers are available with mounting kit for busbars, molex connectors and feets for horizontal or vertical mounting.


    According to: 



    • EN 50178:1997

    • UL 94-V0

    • EN 50178            

    • EN 50155:2007

    • IEC 61373:2010


    Typical applications



    • Railway engineering

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