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Knife Type Transfer Switch

4 Pole Changeover Switch

4 pole changeover switch Suitable for AC 50HZ, rated voltage 400V/690V, rated current 1600A. 3 poles & 4 poles.

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  • 4 pole changeover switch Suitable for AC 50HZ, rated voltage 400V/690V, rated current 1600A. 3 poles & 4 poles.

    The Terminal Is Copper T3

    3-poles or 4-poles

    Avoid erroneous operations

    Designed according to IEC/ EN 60974-3

    Conventional Current 250A 630A 1600A 3150A
    Rated Current In (A) 200 250 315 400 500 630 1000 1250 1600 2000 2500 3150
    Rated Insulation Voltage Ui (V) 1000
    Dielectric Strength (V) 8000 10000
    Rated Surge-Resistant Voltage Uimp KV
    Rated Working Current AC-21B 200 250 315 400 500 630 1000 1250 1600 2000 2500 3150
    380V AC-22B 200 250 315 400 500 630 1000 1250 1600 2000 2500 3150
    AC-23B 200 250 315 400 500 630
    AC-21B 200 250 315 400 1000 1000 1600 2000 2500 2500
    660V AC-22B 160 160 315 315 315 315 800 800 800 1000 1250 1600
    AC-23B 100 125
    Motor Power 380V 100 132 160 220 280 315 560 560 560 710 710 710
    P (Kw) 660V 90 110 185 185 185 185 475 475 475 750 750 750

    To complement our wide range of manual change-over switches, we also offer open transition manual change-over switches designed according to CE certification standards in a power range from 160 to 800 Amperes.

    Our switches come with a real one pole construction in even higher ratings (one line per power line), creating savings in terms of energy consumption by reducing power loss. A single terminal per pole across the entire range also eliminates the need to use additional fixing sets to do connections.

    Change-over switches by GRL are extremely well suited for heavy duty applications. They are equipped with CTI (comparative tracking index) of over 600 V, making them great for use in tropical environments.

    A changeover switch switches a house’s electricity supply from the general grid power supply to a “generator system” in case of power outage. The changeover switch connects to the main power grid, generator or alternate source and the house wiring. When you switch or “Change over” all the power on that circuit changes from either Grid or Generator. (not allowing it to flow back into each other (Grid and generator))

    Technical Properties

    Rated current 63 A

    Rated operational AC voltage 400 V

    Frequency 50/60 Hz

    type of connection with screw

    Connection cross-sect. rigid cable 25mm²

    Connection cross-sect. flexible cable 16mm²

    Number of mechanical operations 100000

    Electrical durability at nominal load in AC21in

    operating cycles 5000

    Operating temperature -20 to 50 °C

    Storage temperature -40 to 80 °C

    Protection index IP 20

    Number of modules 8

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