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LRCD200 Series

Combined Loop and RCD Testers

  • » Non-trip loop tester
  • » RCD testing from 10 mA to 1000 mA
  • » Auto RCD testing (LRCD220)
  • » Extremely easy and safe to use
  • » Built-in protective front cover
  • » Tough Rubber armoured case
  • » Weatherproof
  • » 3 year warranty


The LRCD200 series is the latest generation of combined non-tripping loop tester and RCD test instruments that provide simple, affordable and flexible test tools for electrical contractors testing energised circuits.

All LRCD200 series instruments are supplied with a Megger calibration certificate.

        This instrument provides 3 phase safe non trip loop testing and 1xI tests of 10mA to 500mA RCDs.

LRCD 210
        This instrument provides three phase safe nontrip loop testing and 1/2I, I, and 5I RCD testing for        standard, selective and DC RCDs. Suitable for domestic installers testing to UK Part P requirements.

        As the LRCD210 with the addition of 110 V loop testing and 2 wire fast testing, plus phase to phase        and phase to earth measurement and automatic RCD testing with result recall.

All three instruments will not trip RCDs rated at 30 mA or greater during loop testing, even electronic RCDs.

General Features

  • » All instruments are designed using the new Megger electricians tester case, providing tough rubber
        armouring, built-in front cover, weatherproof to IP54 and easy-to-use functions and layout.
  • » The instruments can be hung around the neck or hand held and will not slip if placed on a bench or shelf.
  • » Test leads can remain attached with the front cover open or closed.
  • » L-N-E connection indicator LEDs show connection status and reverse polarity supplies.


2 Wire Loop impedance testers

  • » 2 Wire Non-tripping loop tester
  • » 50 V to 440 V operation
  • » 110 V centre-tap loop testing
  • » CATIV installation testing
  • » AUTO start - operation
  • » 0.001 Ω resolution (LTW425)


The new Megger two wire earth loop testers verify the loop impedance of a live electrical circuit, ie without the need to disconnect the electrical supply. The new LTW300 series instruments offer a 2 wire loop testing solution that does not trip 30 mA RCDs and can be used on a wide range of voltages.

The new LTW300’s offer a range of features to make earth loop testing safer and easier. The range consists of:

•  LTW315 - 2 Wire loop impedance measurement
•  LTW325 - 2 wire + maxZ + (R1+R2)
•  LTW335 - 2 wire + maxZ + (R1+R2) + Download
•  LTW425 - 2 wire + maxZ + (R1+R2) + 0.001 Ω

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