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FAQ within [ Molded Case Circuit Breakers ]

41-49 of Total 49

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  • Selective coordination

    It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and continues power supply in the event of... More Details >>

    • No:22366
    • Release Date:2018/08/31 14:33
  • IEC60947-2 standard

    IEC 60947-2 is an international standard for circuit breakers. The rated voltage for the applicable circuit breaker is 1000V AC or less, or DC 1500V DC or le... More Details >>

    • No:22361
    • Release Date:2018/08/31 14:33
  • Rear stud (B-ST) installed

    B-ST is possible. More Details >>

    • No:24814
    • Release Date:2019/04/09 15:17
  • MCCB, ELCB and ACB at higher altitudes

    In that case, the rated current and the rated voltage shall be reduced. Refer to the table of derating factors as below. More Details >>

    • No:24801
    • Release Date:2019/04/09 15:17
  • Default setting of electronic breakers

    Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified. However, only the pre-alarm is set to... More Details >>

    • No:22438
    • Release Date:2018/08/31 14:33
  • Instantaneous tripping

    It is a tripping zone which instantly trips, when significantly overcurrent such as short-circuit currents flow. More Details >>

    • No:22363
    • Release Date:2018/08/31 14:33
  • 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
  • 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
  • How to connect to 2-pole breaker

    (1) When "N" is marked on the breaker,connect the N phase wire as marked. (2) When "N" is not marked on the breaker, N phase wire can be connected to eith... More Details >>

    • No:37700
    • Release Date:2020/01/17 08:58

41-49 of Total 49

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