NBS小型断路器NBS系列小型断路器具有体积小巧、重量轻、结构新颖、性能优越的特征。广泛适用于宾馆、社区、公寓、高层建筑、广场、机场、火车站及工矿企业中的照明及配电线路中。适用于交流单相230V，三相400V，频率50Hz或60Hz线路中，作为过载及短路保护之用。该产品符合BS及IEC60947标准。NBS, NBH series miniature circuit breaker is characteristic of small size, light weight, novel structure and excellent performance. They are installed in the illuminating distribution board and used in hotels, residential communities, flats, high buildings, squares, airports, railway stations, plants and enterprises etc., in AC circuits 230V (single pole) up to 400V (3 pole) 50/60 Hz for protection of overload short circuit and for circuit change-over in lighting system. Breaking capacity is 3KA. The items comply with BS & IEC60947 standard.极数：1P, 2P, 3P
额定电流(A):6,10,15,20,30,40,50,60,75,100
额定电压(V):AC120/230/400
额定分断能力(KA): B.S 3；  NEMA 5保护特性设定温度：40℃