A.Founded in1980 B.CE,ROHS,SGS,UL,KEMA,VDE,TSE,CB C.ISO9001,14001 D.manufacturer E. 430 employees,15000 square meter factory SW45 (DW45 series) intelligent air breaker is applicable for distribution network of AC50Hz,rated voltage of 400V and 690V,and rated current of 630A - 320A,to distribute electric energy protection circuit and prevent power equipments from harm of overload,under-voltage, ...