Features: 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. Specification: Item Type: Small Circuit BreakerMaterial: ABS CopperProduct Size: Approx.10.9 x 8.2 x 7.5cm / 4.3 x 3.2 x 3inRated Current: 100ANumber Of Poles: 4PProtection Type: Short Circuit Overload ProtectionInstallation Method: Rail TypeUse: Earth Leakage Circuit BreakerWeight: Approx.589g / 20.8oz Package List: 1 x Small Circuit Breaker