... ,CB,ISO9001,14001,IEC 4)OEM YCH1-100 series isolation switch is applying in AC50/60HZ,rated operated voltage 230/400V ... under distribu-tion and control loop, as the key switch of terminal electrical, also can be used in controlling all ... pole :1P,2P,3P,4P·Install : flush type·Operated capacity: load operated 8500 times and unload 1500 times, total 10000 times ...