4P 40A 30mA RCD CDC440J

The task of the residual current device is to protect people, animals and objects in direct or indirect contact with electricity. Residual current devices also guarantee fire protection, as they monitor the condition of the insulation and disconnect the power supply when leakage currents occur. In the event of an earth fault, when the short-circuit current exceeds the sensitivity of the residual current device, the device automatically switches off the damaged part of the electrical installation within 0.2 seconds. It has a trip indicator and  optical ON/OFF status indicator. Possibility of adding additional equipment. Ambient temperature -25 to +40°C.