• Gossen Metrawatt


Vielen Dank für Ihr Interesse! Wir werden uns umgehend um Ihre Anfrage kümmern.

Data protection

We attach great importance to data protection!
Read more here in our Privacy Statement

Item number: M507B

RCD test instrument

Measuring instrument for testing the characteristics of RCCBs.

In particular, this involves the measurement of touch voltage, breaking time and breaking current for type A, AC, and S RCCBs, as well as type F mixed frequency RCDs as of recently.

  • RCD test instrument

Product Highlights

  • Digital display, backlit color OLED display
  • LED for measurement point illumination
  • Patented test probe retainer
  • Compact and rugged – for service calls under harsh conditions and laboratory use
  • Technical characteristics

    Testing of residual current devices (RCCBs)

    • Measurement of touch voltage without tripping the RCCB. Touch voltage is measured with reference to nominal residual current using ⅓ of the nominal residual current value.
    • Tripping test with nominal residual current, measurement of time to trip

    Special tests for systems and RCDs

    • Testing of systems and RCDs with rising residual current including indication of tripping current
    • Testing of RCDs, IΔN = 10, 30, 100, 300 und 500 mA
    • Testing of RCCBs with ½ΔN, 1ΔN, 2ΔN, 5ΔN up to100 mA nominal current
    • Testing of RCDs with half-waves (pulsating direct current) for determining time to trip and tripping current

    Testing of special RCDs

    • Selective , type AC, type A

    Measurement of line voltage and fault loop impedance


Do you have any questions on the product or do you need technical information or details on the current delivery period? Our sales backoffice will be pleased to assist you.

Sales International:
Telephone: +49 911 8602-0
Send message


Under myGMC you can register your product and receive up-to-date information on firmware updates, modifications of standards and many more topics.

Dialogue, Information and Actions: