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    GCK type low-pressure extraction switch cabinet

    GCK type low-pressure extraction switch cabinet


    • Product Info


    Houndreds types product as like GCK low-voltage withdrawable switchgear is widely used in power plants, metallurgy, steel rolling, petrochemical industry, light industry, textile, port terminals, buildings, hotels and other places as ac three phase four wire or five wire system, voltage 380 v, 660 v, 50 hz, rated current is 5000 a and below the power supply system of power distribution and motor control.

    And houndreds types product as like GCK is a comprehensive type testing, the CCC certification, low-voltage switchgear is assembled advanced type, design meet the following criteria: national standard standard GB7251.1-2005 "low-voltage complete switch equipment" international standard IEC60439.1-1992 "low-voltage switchgear and control equipment"

    Types of meaning

    ◆Ambient air temperature is not higher than + 40 ℃, no less than 5 ℃, the average temperature is not higher than within 24 hours + 35 ℃;
    ◆Relative humidity in + 40 ℃ less than 50%, the highest temperature in the low temperature allows a higher relative humidity, such as + 20 ℃ at 90%;
    ◆Clean air, non-corrosive and explosive gas, without conduction and dust that can destroy insulation:
    ◆Without significant shaking and shock vibration, vertical installation should not be greater than 5 degrees.
    ◆Not exceeding 2, 000 meters above sea level;
    ◆Switch cabinet is suitable for the following temperature transportation and storage: 25 + 5 ℃ to 5 ℃, in a short period of time (not more than 24 hours) not more than + 70 ℃;
    ◆The user shall negotiate with the manufacturer for the above conditions.

    ◆Rated insulation voltage 660V/1000V
    ◆Rated working voltage 400V/660V
    ◆Auxiliary circuit rated working voltage: ac 380V, 220V, dc 110V, 220V
    ◆Bus rated current: 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A
    ◆Bus rated short-time tolerable current: 50kA, 80kA (effective value) 1 second
    ◆Rated peak resistance of bus: 105kA/ 0.1s, 140kA/ 0.1s, 176kA/0.1s
    ◆Branch bus rated current: 630A, 1000A, 1250A, 1600A
    Branch bus rated short-time tolerable current: 30kA.

    50kA (effective value) 1 second

    ◆Branch bus rated peak tolerance current: 63kA, 105kA/0.1s
    ◆Shell protection grade: IP30, IP40
    ◆Bus setting: three-phase four-wire system and three-phase five-wire system
    ◆Operation mode: local, remote and automatic