Only electricians who have enough technical knowledge should change the setting of overcurrent tripping and earth leakag

No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If usin

It is the maximum voltage which meets the performance criteria for the rated operational voltage.

It is from -25 to 55℃ in Trip or OFF position. However, it shall be in an environment without condensation and freezing

Switch disconnector is a switch compatible with IEC 60947-3 standard, and it has no overcurrent tripping element. Please

It is voltage which ensures withstand voltage and it is used as basis to determine insulation distance.

Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalo

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

When making a transformer to energize, a large inrush current may flow. The circuit breaker is therefore required to pre

Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified.

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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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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
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
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
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
Rated insulation voltage

It is voltage which ensures withstand voltage and it is used as basis to determine insulation distance. More Details >>
- No：22362
- Release Date：2018/08/31 14:33
MCCB Reverse connection

Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalog. If it says "Possible", MCCB can be... More Details >>
- No：22442
- 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
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
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

21-30 of Total 49

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