New C45 Breaker is used in lighting distribution system or motor distribution system for protection overload and short-circuit in the system.It has high breaking capacity,can trip quickly,and its case and items are adopted by high fire-resistant and shockproof plastics.The product,with long life,is mainly used in AC 50Hz/60Hz single-pole 230V or two,three,four pole 400V circuit for overload and short-circuit protection as well ad for unfrequent on and off switching electric equipment and lighting circuit in normal case.