... 400-1250A GW4-12(17.5/40.
4) series outdoor ac high-voltage disconnecting
switch conforms GB1985-89, IEC129(1984) and ... IEC694(1980). GW4-12(17.5/40.
4) series outdoor ac ... levelThis series of disconnecting
switch meet GB1985-89
switch> IEC129(1984)switch earthed switch> and IEC694(1980) ...