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FAQ within [ Earth Leakage Circuit Breakers ]

1-10 of Total 21

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  • Test button

    The push button is used for testing whether it definitely trips when an earth leakage current occurs. At this test, a Leakage Display button will be come out... More Details >>

    • No：22347
    • 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

  • 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

  • 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

  • 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

  • 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

  • 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 High-sensitivity

    It is the Earth Leakage Circuit Breaker with rated residual operating current of 30mA or less. More Details >>

    • No：22390
    • 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

1-10 of Total 21

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