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