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  •   GN19-12 Indoor High Voltage AC Disconnector Switch
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GN19-12 Indoor High Voltage AC Disconnector Switch

Model: GN19-12


  • General
  • Technical Parameter
  • GN19-12 indoor high-voltage isolating switch is a high- -voltage switchgear for power systems with rated voltage of 12KV and AC 50HZ and below, with CS6-1 type manual operating mechanism. It can be used as opening and closing circuit when there is voltage without load. There are also derivative products, like anti-fouling type, high prototype and retro charging display device, etc. This series of disconnector is a three- -stage type, which consists of an under frame, a rotating shaft, and a lever, a porcelain post insulator, a knife switch and a wiring board. The rotating shaft is arranged on the under frame, and three pairs of levers are welded thereon, and the lever is connected to the knife switch through the pull rod porcelain insulator. The shaft extends out of the under frame and any of its sections can be connected to the operating mechanism. Type C is through-the- -wall mode.Where C1 indicates that the rotation is on the wall side; C2 indicates that the breaking is on the wall side; C3 indicates that both sides are on the wall side.

    Model Meaning

    Working Condition

    O Altitude is not more than 1000m. O Ambient air temperature: Max. +40C; Min.- -259C. O Air relative humidity: Daily average is not greater than 95%, monthly average is not greater than 90%. O Earthquake intensity does not exceed 8 degree. O Installation location: no fire, flammable, explosive, serious pollution, chemical corrosion and severe vibration.  



  • No. Item Unit Data
    1 Rated voltage KV 12
    2 1 min power frequency withstand voltage To earth KV 42
    Between open contacts KV 48
    3 Lightning impulse withstand voltage(peak) To earth KV 75
    Between open contacts KV 85
    4 Rated frequency HZ 50
    5 Rated current A 400 630 1000   1250
    6 Rated short-time withstand current KA 16 20 16 20 25 20     25 31.5
    7 Rated peak withstand current KA 40 50 40 50 63 50     63 80
    8 Rated short-time withstand current duration main knife switch/ground knife switch S 4/2
    9 Creepage distance mm 300~380
    10 Mechanical life Times 2000
    Product number A B C D E F
    GN19-12/400 450 436   4-14×24 210 230 250 620 660 700 870 900  940
    GN19-12/630 490 436
    GN19-12/1000 1250 510 530   4-18×28
    GN19-12C/400 420 625   4-14×24
    GN19-12C/630 460 625
    GN19-12C/ 1000 1250 505 745   4-18×28
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