Digital RCD Tester | CEM DT-904

AUD $180.00 • ( AUD $198.00 inc. GST )

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    Key Features:

    • 2000 ms 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

    PDF DatasheetDT-904_Dataseeet

    The DT-904 is the Basic test Equipment an Electrician cannot do without. 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.


    Weight 0.185 kg
    Dimensions 12.8 × 6.8 × 3 cm


     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


    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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