... 630, 400-1000, 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 high-voltage disconnecting switchAmbient condition:altitude: 1000-3000mambient ... : regular is 0 level, antifouling type is II levelThis
series of disconnecting switch meet GB1985-89