1.suitable for industry,business,building,residence,etc. 2.conformity with GB6916.1,IDC61008-1 standards. 3.CE 4.ISO 1. ... to 400V.2.It can mainly used as the chief switch in the terminal combined electrical equipments as well as used ... mining industry,building,business,residence,etc.4.it is conformity with GB14048.3,IEC60947-3 standards. Isolating switch