Current monitor 230 V, IΔn 0.03 - 3 A | DRCM 1 B+

RCMs (residual current monitors) when used in combination with separate residual current transformers allow the monitoring of insulation between active conductors and the earth conductor. In contrast to modular residual current devices (MRCDs) or residual current circuit-breakers (RCCBs), they are used where the system either cannot or should not be switched off. In this way, these devices alone are used to monitor or report residual currents and are therefore suitable for preventative maintenance. They are not suitable for implementing protective measure "Automatic switch-off of power supply" as per DIN VDE 0100-410. Residual current monitors with characteristic B+ detect pulsating and smooth DC residual currents as well as AC residual currents up to 100 kHz. Series DRCM residual current monitors Devices in the standard design are intended for monitoring circuits with a rated voltage of 230 V or 400 V and a rated frequency of 50 Hz or 60 Hz.