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FAQ within [ Air Circuit Breakers ]

1-10 of Total 24

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  • ACB Ground fault protection

    Ground fault protection (GFR) is prepared as option, it is possible to detect and protect against ground fault current. "Trip" or "Alarm signal output" can b... More Details >>

    • No：22412
    • Release Date：2018/08/31 14:33

  • ACB How to use MCR

    It is special relay characteristic for selective co-ordination. When closing ACB (changing from OFF to ON), the instantaneous tripping characteristic is effe... More Details >>

    • No：22402
    • Release Date：2018/08/31 14:33

  • ACB　OCR alarm

    It is a standard equipment (automatic reset type) and 30ms of one-pulse is output at overload tripping. Hold-type circuit is necessary since the output time ... More Details >>

    • No：22428
    • Release Date：2018/08/31 14:33

  • ACB　test position

    The test position is a position where a main circuit is in the "disconnected" state and only control circuit is in the "connected" state. Control circuit che... More Details >>

    • No：22405
    • Release Date：2018/08/31 14:33

  • ACB trip indication

    Generally, there is no Mechanical Trip indication of continuous output for AE-SW. It is necessary to indicate electrically by using OCR Alarm (AL) output or ... More Details >>

    • No：22432
    • Release Date：2018/08/31 14:33

  • ACB　Shorting B contact (SBC)

    This contact(SBC) is used to auxiliary switch(AXb) contact. When Drawout type ACB is moved from "test" position to "disconnect" position, AXb contact will b... More Details >>

    • No：22416
    • Release Date：2018/08/31 14:33

  • Rated current and continuous current

    The rated current is standard value for continuous current, short time delay current and instantaneous current. Continuous current is non-breaking current (c... More Details >>

    • No：22371
    • Release Date：2018/08/31 14:33

  • ACB opening time

    For Shunt Trip (SHT), it is the time from voltage application to open ACB main contact * AE3200-SW or less, AE4000-SWA: 0.04 sec or less* AE4000-SW to AE6300... More Details >>

    • No：22418
    • Release Date：2018/08/31 14:33

  • ACB closing time

    The time between application of voltage to the closing coil (CC) and closing of the main contact is 0.08 sec or less. More Details >>

    • No：22440
    • Release Date：2018/08/31 14:33

  • ACB　reverse connection

    For ACB, Line and Load are not defined on the main circuit terminals. Reverse connection is available without any limitation. More Details >>

    • No：22425
    • Release Date：2018/08/31 14:33

1-10 of Total 24

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