HKM (BKM) series circuit breaker is used in lighting distribution system or motor distribution system for protecting overload short circuit in the system.The product is neoteric in structure,light in weight,reliable and excellent in performance.Its frame and parts adopt plastics of high fire-resistant and shockproof,also can apparatus with auxiliary switch,alarm switch accessories.The product,with long life,is mainly used in AC50Hz/60Hz singlepole 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.The products comply with IEC 898 & BS 3781.