KVB1-63(C45N) series circuit breaker is used in lighting distribution system or motor distribution system for protecting overload and short-circuit in the system.The product is novel in structure,light in weight,reliable and excellent in performance.lt has high breaking capacity,can trip quickly and it' s installation uses with guide, it' s case and items are adopted with high fire-resistant and shockproof plastics.The product,with long life,is mainly used in AC 50Hz/60Hz single-pole 240V or two,three,four-pole 415V circuit for overload and short-circuit protection as well as for unfrequent on-and-off switching electric equipment and lighting circuit in normal case.This product comply with GB10963,IEC898,BS3871.