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FAQ within [ Air Circuit Breakers ]

1-10 of Total 23

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  • Setting change operation while power is on

    It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristics should be changed by a person with... More Details >>

    • No：37699
    • Release Date：2020/01/18 09:58

  • 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　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

  • 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　terminal connection

    Horizontal connection type (standard: AE-SW up to 3200A except 2000-SWA), Vertical connection (VT) type (standard: 2000-SWA,4000-SWA -6300-SW) and Front conn... More Details >>

    • No：22417
    • Release Date：2018/08/31 14:33

  • 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

  • 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 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　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

1-10 of Total 23

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