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FAQ within [ Molded Case Circuit Breakers ]

1-10 of Total 49

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  • LTD operating characteristic

    It is overcurrent tripping characteristic zone which exceeds the rated current and does not exceed short time tripping zone (If without short time tripping ,... More Details >>

    • No：22384
    • 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

  • 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

  • Arc space

    It means a space between the edge of a exhaust port and panel component ( such as wall or duct) of a circuit breaker. The arc space is needed for smoothly di... More Details >>

    • No：22373
    • 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

  • Side by side installation

    It is possible to attach closely if there is no problem about the insulation distance between live parts such as a terminal bar and load currents are 80% or ... More Details >>

    • No：22400
    • Release Date：2018/08/31 14:33

  • AC Breakers used at DC circuit

    It is not possible to use a circuit breaker for AC in DC circuit. Since the Arc-Extinguishing Device structure of circuit breaker for DC is different from th... More Details >>

    • No：22381
    • 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

  • 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

1-10 of Total 49

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