DZ47-63(C45N) series circuit breaker is used in lighting distribution system or motor distribution 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. 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 Infrequent on-and-off switching electric equipment and lighting circuit in normal case.