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    Standard Design Toroidal Current-Sensing Transformers

    Toroidal Current-Sensing Transformers

    Our toroidal current-sensing transformers measure current

    flowing in power lines and busbars. Also called instrument transformers, they can be furnished with protective insulation by means of taping, resin dipping or epoxy potting. They can also be cast in epoxy and encapsulated--either alone or grouped together for multi-phase applications. We offer an expanding line of standard design current transformers as a cost-effective solution for many applications.

Additionally, custom design current sensing transformers to your  exact specifications are available at competitive pricing.


    Voltage Generating Types
    Electronic power monitoring equipment sometimes relies on a current transformer to produce a voltage signal. This is accomplished with a relatively high turns ratio (typically 1000 to 2000) with a load resistor mounted across the winding. This type of current transformer is often mounted directly onto a PC board. Besides flying leads, we can supply the transformer mounted vertically or horizontally in a carrier with pins for PC mount.

    P/N Current Ratio VA Burden(Examples) Percent
    OD x HT
    0050-CTR 50:5 1.0 2 2.50 x 1.00
    0075-CTR 75:5 1.0 2 2.50 x 1.00
    0100-CTR 100:5 2.0 2 2.50 x 1.00
    0200-CTR 200:5 5.0 1 3.65 x 1.15
    0300-CTR 300:5 12.5 1 3.65 x 1.15
    0400-CTR 400:5 12.5 1 3.65 x 1.15
    0500-CTR 500:5 25.0 1 4.10 x 1.25

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