... , 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 temperature is ... and 2, 3, 5, 7.5, 10 AGW5-40.5(w)630-31.5Classify: normal type (antifouling type),Model: GW5-40 ...