RDCPS series control and protection switchgear, mainly used for alternating current 50Hz (60Hz), rated working voltage up to 400V, main rated current from 6.3A to 125A, intelligent controller adjustable working current from 0.4A to 25A, control motor power from 0.05kW to 55kW power system to connect, carry and disconnect normal conditions (including specified overload conditions) of current or voltage, and can connect, carry for a certain time and cut off specified abnormal conditions (such as short circuit, undervoltage, etc.) of current or voltage.