DT-904 Digital RCD Tester

Digital RCD Tester | CEM DT-904

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Key Features:

  • 2000mS readout for testing latest delay action breakers
  • Fully programmed operation
  • Accurate digital read out of tripping time
  • Two LED’s lamps give quick check for correct wiring
  • Operates from mains supply. No need for batteries
  • Compact, lightweight and simple to operate
  • Zero cross circuitry permits testing at 0° and 180° portion of
    sine wave. At these two tests minimum (best) and maximum
    (worst) trip times will be displayed
  • Data hold function to freeze the digital trip time display allows
    for easy readout and eliminates the possibility of reading error

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    CEM DT-904 Digital RCD Tester

    The DT-904 is the Basic test Equipment an Electrician cannot do without. The DT-904 is a Dual Function Test Instrument utilized to Verify electrical Wiring Connections and the Functioning of Earth leakage / Residual current detectors by forcing the ELCB / RCD to trip.

    This verifies that the protection device open the mains power supply circuit when a current higher than a certain amplitude circulate into the ground/earth wire.

    This ensures the Electrical installation meet safety regulation requirements.

    Specifications

     CEM DT-409 Digital RCCB Tester Specifications 

    Measuring Ranges 

    Trip Current Settings 

    5mA 10mA 30mA 100mA 300mA 500mA 

    Test Current 

    No Trip Test 

    50% of circuit breaker trip current selected 

    Trip Test 

    100% of circuit breaker trip current selected 

    Fast Trip Test 

    250mA regardless of circuit breaker trip current selected 

    Fault Trip Time 

    2000ms (40ms for Fast Trip) 

    Operational Voltage 

    220V, 230V, 240V AC±10% 50/60Hz 

    Accuracy 

    Test Current 

    ±3% at 220V 230V 240V AC 

    Test Current Duration 

    2000mS ±5% for Trip and NO Trip Tests 

    40ms ±5% for Fast Trip Test 

    Trip Time 

    ±2% reading ±3 digit 

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