... 1250A GW4-12(17.5/40.4)
series outdoor ac high-voltage disconnecting
switch conforms GB1985-89, IEC129(1984) and ... GW4-12(17.5/40.4)
series outdoor ac high-voltage disconnecting
switch Ambient condition:altitude: 1000-3000mambient temperature ... II levelThis
series of disconnecting
switch meet GB1985-89
switch> IEC129(1984)switch earthed switch> and ...