Features 1、Good Protection: This circuit breaker is used for protecting low voltage electrical system, prevents damage caused by overload and short circuit 2、Electrical Performance: The rated voltage of this miniature circuit breaker is 230/400V, the rated current is 63A, suitable for general office building and residential buildings 3、4500A Breaking Capacity: This miniature circuit breaker has 1 pole, with smoothly operation switch, the rated ultimate short circuit breaking capacity is 4500A 4、Easy Installation: This circuit breaker adopts modular structure, can mounted on DIN standard rail conveniently in distribution box, bistable locking clip 5、Flame Retardant Pa66 Shell: The shell of this circuit breaker is made of quality nylon Pa66 material, has excellent flame retardant and great safety performance Specification Item Type: Miniature Circuit Breaker Material: Pa66 Rated Current: 63A Rated Voltage (Ue): AC 230/400V 50Hz Rated Ultimate Short Circuit Breaking Capacity (Household Icn): 4500A Package List 1 x Miniature Circuit Breaker