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FAQ within [ Earth Leakage Circuit Breakers ]

1-10 of Total 21

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  • 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
  • 3P ELCB single phase use

    It is possible to use it if you connect with right and left poles, not neutral pole. Since electronic circuit power supply for earth leakage detection is tak... More Details >>

    • No:22359
    • Release Date:2018/08/31 14:33
  • Rated current sensitivity

    It is an earth leakage current (Effective value of residual operating current) which definitely trips Earth Leakage Circuit Breaker and Earth Leakage Relay ... More Details >>

    • No:22353
    • Release Date:2018/08/31 14:33
  • 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
  • Earth leakage protective coordination

    Since the total electric circuit length of upstream circuit breaker side is longer than that of downstream circuit breaker, constant earth leakage current b... More Details >>

    • No:22369
    • 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
  • 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
  • Select rated current sensitivity

    Please select rated current sensitivity ,according to the protection purpose and the protective grounding resistance value of the load equipment. If you alre... More Details >>

    • No:22346
    • 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 installation

    The control power supply of the earth leakage detection circuit is taken from the inside of Earth Leakage Circuit Breaker. If used on the secondary side of t... More Details >>

    • No:22372
    • Release Date:2018/08/31 14:33

1-10 of Total 21

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