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 neoteric in structure,light in weight,reliable and execllent in performance.its frame and parts adopt plastics of high fire-resistant and shockproof.the product,with long life,is mainly used in ac 50/60hz 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.the products comply with iec 898& nbs 3871.