Devices in the DPRCD-M series are base components for producing three-phase PRCD personal protection devices. They are suitable for DIN rail mounting and are compatible with housings of leading manufacturers. The devices combine an AC-DC sensitive residual current device with network and protective conductor monitoring, and measure just 8 module widths. Thanks to 6-mA-DC detection, the device also ensures the protective function of upstream residual current circuit breakers.