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FAQ within [ Air Circuit Breakers ]

1-10 of Total 24

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  • 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 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　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 DC use

    It is not possible to use standard AE-SW in DC circuit. Special DC use AE-SW is provided if specified. More Details >>

    • No：22446
    • Release Date：2018/08/31 14:33

  • ACB How to check the operating chara...

    Y-2005 type field test equipment (it is sold separately) enable to check the operating characteristic easily. The test is conducted by connecting the test te... More Details >>

    • No：22429
    • Release Date：2018/08/31 14:33

  • Setting change operation while power ...

    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　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

  • replace AE-SS with AE-SW

    (1) and (2) are impossible. More Details >>

    • No：24818
    • Release Date：2019/04/09 15:03

  • ACB for DC circuit

    Only ACB fixed type is available for DC circuits. More Details >>

    • No：38027
    • Release Date：2021/01/22 17:38

1-10 of Total 24

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