... ) and IEC694(1980). GW4-12 series outdoor ac high-voltage disconnecting switch conforms GB1985-89, IEC129(1984) and IEC694(1980 ... ). GW4-12 series outdoor ac high-voltage disconnecting switch conforms GB1985-89, IEC129(1984) and IEC694(1980). ... rated voltage(kV)rated current(A)10kV,20kV,35kV200A,400A,600A,1000A,1500A,2000A,3000A outdoor high voltage disconnect switch