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        Product List
        GW4-12/40.5D(W) Outdoor HV Disconnect Switch
        GW4-12/40.5 outdoor high voltage disconnect switch is used to open and close high voltage circuit in rated voltage 12/40.5kV, AC 50/60Hz system, the anti-pollution type is especial suitable for serious pollution area.
        Ambient conditions
        1. Altitude:≤3000m;
        2. Ambient temperature:-25~+40℃ ;
        3. Wind speed:≤35m/s;
        4. Earthquake intensity:≤8 grade;
        5. Ice thickness:≤10mm;
        6. Anti-pollution type is special suitable for serious pollution area;
        7.Applicable occasions should free from inflammable, explosives and severe vibration.

        Technical specification
        Item Unit Data Note
        Rated voltage kV 12/40.5
        Rated current A 630 1250
        Rated peak withstand current kA 50 80
        4s short-time withstand current 20 31.5
        Rated static pull on connection terminal N 735
        Rated power frequency Hz 50/60
        1min power frequency withstand voltage kV Phase to phase, phase to earth: 185/275 Suitable for three
        pole linkage
        across open contacts: 210/315
        Lightning impulse withstand voltage(peak) kV Phase to phase, phase to earth: 450/650
        across open contacts: 520/750
        Suitable for three
        pole linkage
        Weight of switchbody kg ≈240
        Operating mechanism CS14 manual
        Earth method Without earth, single earth, double earth
        Post insulate creepage distance mm Normal type: 1870 anti-pollution: 3050
        With earth switch Short-time withstand current kA 12.5(2s) 20(2s)
        Peakwithstand current 31.5 50

        Disconnect switch is contain of frame, post insulator, conductive part, with earth and operating mechanism etc, earth blade is mounted with rotating shaft, static contactor is mounted on the bar, there is a mechanism linkage to ensure operating ordinally, one set Cs14 handle operating mechanical for no earth switch, two sets for singte earth switch, three sets for double earth switch.
        Outline and installation dimension