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FAQ within [ Earth Leakage Circuit Breakers ]

11-20 of Total 21

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  • ELCB applicable to harmonics and surge

    Compared with general circuit breakers, Earth Leakage Circuit Breaker applicable to harmonics and surge has earth leakage current detecting characteristic wh... More Details >>

    • No：22344
    • Release Date：2018/08/31 14:33

  • Rated current sensitivity

    Earth Leakage Circuit Breaker and Earth Leakage Relay operate at higher than 50% but not exceeding 100% of the rated residual operating current IΔn. The eart... More Details >>

    • No：22364
    • Release Date：2018/08/31 14:33

  • Residual non-operating current

    It is a current that does not leak-trip even if there is ground fault current or leakage current. In the standard, it is 50 % of the rated residual operating... More Details >>

    • No：22356
    • Release Date：2018/08/31 14:33

  • ELCB applicable voltage

    The applicable voltage is 440V or less. Moreover, High-speed type can be used from 85 to 484V, and Time-delay type can be used from 170 to 484V. More Details >>

    • No：22421
    • Release Date：2018/08/31 14:33

  • ELCB Default setting Time-delay type sensitivity

    Both of the adjustment knob is set to the maximum value when shipping in order to prevent unwanted earth leakage tripping when Earth Leakage Circuit Breaker ... More Details >>

    • No：22388
    • Release Date：2018/08/31 14:33

  • Default setting from the factory

    The knob of the sensitivity current selector is set to the maximum value when shipping in order to prevent unwanted earth leakage tripping when Earth Leakage... More Details >>

    • No：22391
    • Release Date：2018/08/31 14:33

  • High-speed residual operate CBR

    It is Earth Leakage Circuit Breaker that the earth leakage trip operating time at the rated residual operating current (IΔn) is within 0.1 sec, and the earth... More Details >>

    • No：22380
    • Release Date：2018/08/31 14:33

  • ELCB reverse connection

    Almost ELCBs can be connected n reverse. Check the item column of specification table "reverse connection (below 230 V AC)" in the catalog. If it says "Possi... More Details >>

    • No：22434
    • Release Date：2018/08/31 14:33

  • ELCB Rated insulation voltage

    It is same as the maximum rated operational voltage. More Details >>

    • No：22365
    • Release Date：2018/08/31 14:33

  • 4-pole type in 100VAC or 110VAC

    The rated operational voltages for them are 200 to 440VAC. If using them in 100VAC or 110VAC circuit, earth-leakage protection does not operate. More Details >>

    • No：24820
    • Release Date：2019/04/09 15:10

11-20 of Total 21

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