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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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  • Ambient temperature

    The range of ambient temperature is from -10 to 40 degree Celsius for not only MCCB but also including Earth Leakage Circuit breaker, Earth Leakage Relay and... More Details >>

    • No：22352
    • 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

  • 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

  • Front to rear connection

    It is possible to modify to Rear-connection type by Mitsubishi's certified staff. More Details >>

    • No：22399
    • Release Date：2018/08/31 14:33

  • Inst tripping current value of AC/DC common breaker

    At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the effective values of them are same. Ho... More Details >>

    • No：22392
    • Release Date：2018/08/31 14:33

  • How to select at Inverter circuit

    Basically you have to consider the effect of harmonic waves, but there are two ways as below. 1. Refer to the recommended rated current by inverter manufactu... More Details >>

    • No：22360
    • Release Date：2018/08/31 14:33

  • Rating of a circuit breaker for transformers primary protection

    When making a transformer to energize, a large inrush current may flow. The circuit breaker is therefore required to prevent unwanted trip. The selection of ... More Details >>

    • No：22343
    • Release Date：2018/08/31 14:33

  • Switch disconnector

    Switch disconnector is a switch compatible with IEC 60947-3 standard, and it has no overcurrent tripping element. Please use it as a switch with large switch... More Details >>

    • No：22379
    • 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

  • Storage temperature range of MCCBs and ELCBs

    It is from -25 to 55℃ in Trip or OFF position. However, it shall be in an environment without condensation and freezing even in a short time. More Details >>

    • No：22426
    • Release Date：2018/08/31 14:33

21-30 of Total 49

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