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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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  • 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 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

  • Hot start characteristics

    Operating characteristics described in our catalog (if there is no "Note" particularly) mean operating time when it starts to carry current from the conditio... More Details >>

    • No：22374
    • Release Date：2018/08/31 14:33

  • Change Electronic relay characteristics when it is energized

    Only electricians who have enough technical knowledge should change the setting of overcurrent tripping and earth leakage tripping characteristics. Moreover,... More Details >>

    • No：22409
    • Release Date：2018/08/31 14:33

  • 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

  • Use in 40℃～60℃

    Operating ambient temperature is set to - 10℃ to 40℃. ( However, its average over a period of 24h does not exceed 35℃.) In the case that the ambient temperat... More Details >>

    • No：22370
    • Release Date：2018/08/31 14:33

  • 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

  • Max. operational voltage for AC/DC Common

    When it is connected as special connection, AC/DC compatible circuit breaker can be used with DC 250V or more (3-pole type is DC400V and 4-pole type is DC500... More Details >>

    • No：22445
    • 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

  • 3P MCCB in 1-phase 2-wire circuit

    It is possible. Refer to the figure for connection as below. More Details >>

    • No：24811
    • Release Date：2019/04/09 15:18

21-30 of Total 49

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