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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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  • 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
  • 2P MCCB only 1-pole use

    No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If using it as 1-pole circuit breaker, these... More Details >>

    • No:22382
    • 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
  • Rear stud (B-ST) installed

    B-ST is possible. More Details >>

    • No:24814
    • Release Date:2019/04/09 15:17
  • 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
  • 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
  • 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
  • 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
  • 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

21-30 of Total 49

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