Item Type: Small Circuit Breaker_x000D_ Material: ABS, Copper_x000D_ Product Size: Approx.10.9 x 8.2 x 7.5cm / 4.3 x 3.2 x 3in_x000D_ Voltage: 400V_x000D_ Rated Current: 100A_x000D_ Number Of Poles: 4P_x000D_ Protection Type: Short Circuit Overload Protection_x000D_ Installation Method: Rail Type_x000D_ Use: Earth Leakage Circuit Breaker_x000D_ Weight: Approx.589g / 20.8oz 1Working Principle: Automatically cut off the circuit when the working current exceeds the rated current, short circuit, loss of voltage, etc. 2Automatic Circuit Breaker Protection: Through the protection device, it quickly provides automatic circuit breaker function when the household circuit is short circuited. 3Leakage Circuit Breaker: Built in rapid arc extinguishing components, no arcing, high safety system. 4Parameters: 4P circuit breaker with rated voltage of 400V and rated current of 100A with auxiliary arc extinguishing system. 5Wide Application: Widely used in DC power system, ship power system, solar photovoltaic system or other DC systems, convenient and practical.1 x Small Circuit Breaker