Three phase True RMS AC Current Transducer

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  • This device is a 3-phase AC current isolation transducer, true RMS measurement. Adopts the principle of electromagnetic isolation, can measure three-phase AC current non-sinusoidal alternating signal RMS after the True RMS conversion, isolated and linearly output standard voltage or current signals. The product is widely used in non-standard waveform distortion sine wave real-time signal detection and monitoring.


    Data Sheet

    * Test conditions: auxiliary power supply: +24V,  room temperature: 25℃;

    * Input range: 0~30AAC;

    * Output: 0~5VDC, 0~10VDC, 0~20mADC, 4~20mADC;

    * Power supply: 12VDC, 15VDC, 24VDC, 85~265VAC/DC;

    * Accuracy: class 0.5;

    * Load capacity: load ≥ 2KΩ (voltage output), load ≤250Ω (current output)

    * Temperature drift: ≤350ppm/℃;

    * Isolation voltage: ≥2500 VDC;

    * Response time: ≤350 mS;

    * Rated power consumption: 1W(voltage output),  2W(current output);

    * Output ripple: ≤10mV

    * Frequency range: 45~65Hz(up to 5K, please specify when ordering)

    * Surge impact immunity: 

       Power port three-level ± 2KV (L-N/2Ω/integrated wave) 

       Analog I/O port three-level ±2KV (L-N/40Ω/integrated wave);

    * Impulse immunity: input / power port ± 2KV,  analog I /O port ± 1KV;

    * Input overload capacity: 20 times of the measured current nominal value (maximum 500A), (apply    one second , repeat 5 times, interval 300S). 

    * Operating temperature: -10~ 60°C; humidity: ≤95% (no dew);

    * Storage temperature: -55 ~+65°C; humidity: ≤95% (no dew).


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    BSK case outline drawing



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    BSK case style installation dimensions

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    Connection diagram


    Measure the RMS current of each phase;

    High precision, low temperature drift;

    Small size, easy to install on-site;

    High reliability, can resist the surge over 2KV.


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