DZ47-63 is used in lighting distribution system or motor distribution system for protecting overload and short-circuit in the system. The product is novel in strcuture, light in weight, reliable and CF45 is excellent in performance. It has high breaking capacity, can trip quickly and its installation uses with guide, its case and items are adopted with high fire-resistant and shockproof plastics. The product with long life is mainly used in AC50/60Hz single pole 230V or two three four pole 400V circuit for overload and short circuit protection as well as frr unfrequent on-and-off switching electrical equipment and lighting circuit in normal case. The product complies with GB10963, IEC898, BS3871.