Features VOLTAGE CAPACITY: the rated voltage and rated current are AC 400V 63A, rated short circuit shut-off capacity is 4500A with safe and reliable operation. MAIN PURPOSE: The 4P miniature circuit breaker is used to protect electrical low voltage systems from overcurrent damage caused by overload or short circuit. Wide application: the circuit breaker has a compact structure and is widely used in lighting systems of office buildings and residential buildings. DIN rail holder: modular design, with bistable locking clip, which can be easily mounted on DIN standard rails in power distribution boxes. NYLON PA66: The housing of the circuit breaker is made of nylon PA66 material, which has good safety and flame retardant performance as well as a long service life. Specification: Item Type: Circuit Breaker Model: DZ47 63 D63. Material: PA66. Rated current: 63 A. Rated voltage (Ue): AC 400 V 50 Hz. Rated ultimate short circuit breaking capacity (household icn): 4500 A Package list: 1 x circuit breaker. Package List 1 x Circuit Breaker