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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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  • Trip free

    It means that it does not interfere with tripping operation even if a handle is held at "ON" position. (It trips when an overcurrent flows even if a handle i... More Details >>

    • No：22378
    • Release Date：2018/08/31 14:33

  • Wrong connection in reverse

    It may not trip a fault current or degrade insulation after tripping. When you connect the device in reverse, you must select a reverse-connectable model. More Details >>

    • No：22345
    • Release Date：2018/08/31 14:33

  • Degree of protection

    In order to prevent breakdowns and human injuries, it is necessary to select a control device having protection structure suitable for each purpose. The prot... More Details >>

    • No：22443
    • Release Date：2018/08/31 14:33

  • Operating cycles

    It is the number that can be opened/closed per hour under the conditions specified in the standard. More Details >>

    • No：22436
    • Release Date：2018/08/31 14:33

  • Plug-in type NF1600-SEW produced

    It is impossible. More Details >>

    • No：24817
    • Release Date：2019/04/09 15:16

  • Calorific value of the circuit breaker

    1. The internal resistance (per pole) is described in the catalog and technical notes. 2. Power consumption (W) = RI^2 x Poles = Resistance (Ω) x Load curre... More Details >>

    • No：38025
    • Release Date：2021/01/22 17:39

  • How to fix conductors/wires

    Large electromagnetic force will be generated between conductors/wires due to fault currents. To prevent deformation and breakage of circuit breakers and con... More Details >>

    • No：22424
    • Release Date：2018/08/31 14:33

  • How to install cassette type accessories

    A circuit breaker shall be Trip position when installing Cassette type accessory. The breaker may be damaged if installing in "ON" or "OFF" position. Moreove... More Details >>

    • No：22422
    • Release Date：2018/08/31 14:33

  • Operational voltage

    It is the maximum voltage which meets the performance criteria for the rated operational voltage. More Details >>

    • No：22367
    • Release Date：2018/08/31 14:33

  • MCCB and MCB as terms

    MCCB stands for "Molded Case Circuit Breaker." This is defined in the IEC standard, IEC 60947-2 and in the UL standard, UL 489. MCB stands for "Miniature Ci... More Details >>

    • No：22340
    • Release Date：2018/08/31 14:33

21-30 of Total 49

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