Features No Overcurrent Damage: 4P miniature circuit breaker is used to protect low voltage electrical systems from overcurrent damage caused by overload or short circuit. Flame Retardant PA66 Shell: The shell of circuit breaker is made of good quality PA66 nylon material, which possess excellent flame retardant and safety performance. DIN Rail Mounts: The miniature circuit breaker adopts a modular structure, which can be easily installed on the DIN standard rail of the distribution box by bistable locking clips. 4500A / 6000A Breaking Capacity (Universal Random): The residual current circuit breaker possess 4500A or 6000A high breaking capacity(Random). Compact size bring small footprint, easy and convenient to use, useful and practical. Office and Residential Use: The miniaturecircuit breaker is mainly used for power distribution and protecting facilities in office and residential buildings from overload and short circuit damage. Specification: Item Type: Mini Circuit Breaker Material: Pa66 Model: DZ47-63 C63 Rated Current: 63A Rated Voltage (Ue): AC 400V 50Hz Rated Ultimate Short Circuit Breaking Capacity (Household Icn): 4500A / 6000A(Universal Random) Package List: 1 x Mini Circuit Breaker Package List 1 x Mini Circuit Breaker