Use with 24V, 0.5A or more for AC and DC in normal use. If the breakers are used less than 24V, use with 6V, 1A or more.

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

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

It is overcurrent tripping characteristic zone which exceeds the rated current and does not exceed short time tripping z

(1) When "N" is marked on the breaker,connect the N phase wire as marked. (2) When "N" is not marked on the breaker,

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

It is the number that can be opened/closed per hour under the conditions specified in the standard.

At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the

In that case, the rated current and the rated voltage shall be reduced. Refer to the table of derating factors as below.

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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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Minimum operating voltage

Use with 24V, 0.5A or more for AC and DC in normal use. If the breakers are used less than 24V, use with 6V, 1A or more. Moreover, regular inspection of is ... More Details >>
- No：22401
- 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
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
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
How to connect to 2-pole breaker

(1) When "N" is marked on the breaker,connect the N phase wire as marked. (2) When "N" is not marked on the breaker, N phase wire can be connected to eith... More Details >>
- No：37700
- Release Date：2020/01/17 08:58
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
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
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
lower limit of operational voltage for DC

It is DC 24V. More Details >>
- No：24816
- Release Date：2019/04/09 15:17
MCCB, ELCB and ACB at higher altitudes

In that case, the rated current and the rated voltage shall be reduced. Refer to the table of derating factors as below. More Details >>
- No：24801
- Release Date：2019/04/09 15:17

21-30 of Total 49

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