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

If switching of neutral pole is not needed, it is possible to use 3-pole MCCB for 3-phase 4- wire circuit. Generally, it

Operating characteristics described in our catalog (if there is no "Note" particularly) mean operating time when it star

It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and co

It is an earth leakage current (Effective value of residual operating current) which definitely trips Earth Leakage Cir

Large electromagnetic force will be generated between conductors/wires due to fault currents. To prevent deformation and

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

It means that it does not interfere with tripping operation even if a handle is held at "ON" position. (It trips when an

The control power supply of the earth leakage detection circuit is taken from the inside of Earth Leakage Circuit Breake

The number of trip durability by using SHT and UVT is 10% of the opening/closing number including the number of trips by

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Low-voltage Circuit Breakers

Miniature Circuit Breakers(2)

FAQ within [ Low-voltage Circuit Breakers ]

81-90 of Total 123

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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
- Category： Molded Case Circuit Breakers
MCCB 3P4W 3P use

If switching of neutral pole is not needed, it is possible to use 3-pole MCCB for 3-phase 4- wire circuit. Generally, it is recommended to use 4-pole circuit... More Details >>
- No：22385
- Release Date：2018/08/31 14:33
- Category： Molded Case Circuit Breakers
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
- Category： Molded Case Circuit Breakers
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
- Category： Molded Case Circuit Breakers
Rated current sensitivity

It is an earth leakage current (Effective value of residual operating current) which definitely trips Earth Leakage Circuit Breaker and Earth Leakage Relay ... More Details >>
- No：22353
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
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
- Category： Molded Case Circuit Breakers
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
- Category： Molded Case Circuit Breakers
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
- Category： Molded Case Circuit Breakers
ELCB installation

The control power supply of the earth leakage detection circuit is taken from the inside of Earth Leakage Circuit Breaker. If used on the secondary side of t... More Details >>
- No：22372
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
Lifetime with SHT or UVT

The number of trip durability by using SHT and UVT is 10% of the opening/closing number including the number of trips by overcurrent, trip button and test bu... More Details >>
- No：22407
- Release Date：2018/08/31 14:33
- Category： Accessories and Related Components

81-90 of Total 123

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