The Sonel MRP-201 residual current circuit breaker meter is a specialist device for measuring all types of residual current circuit breakers – direct, short-delay, selective; types AC, A and B.

It allows to measure tripping current, tripping time depending on differential current, resistance of protective conductor and contact voltage.

Measurements can be performed individually or in series in automatic modes (all preset measurements for a given waveform or for all waveforms); simultaneous measurement of current and tripping time is also possible (with one RCD trip).

The meter features a 500ms range for the testing on selective RCD.

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