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

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

It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristi

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

Bar terminal material for 400A is aluminum alloy, and for 630A or higher is copper.

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

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

1. The internal resistance (per pole) is described in the catalog and technical notes. 2. Power consumption (W) = RI^2 x

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

The degess of protection for ACB is IP20 as standard (under the condition that front door is closed). For MCCB and ELCB,

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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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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
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
Setting change operation while power is on

It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristics should be changed by a person with... More Details >>
- No：37699
- Release Date：2020/01/18 09:58
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
MCCB bar terminal material

Bar terminal material for 400A is aluminum alloy, and for 630A or higher is copper. More Details >>
- No：24819
- Release Date：2019/04/09 15:13
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
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
Calorific value of the circuit breaker

1. The internal resistance (per pole) is described in the catalog and technical notes. 2. Power consumption (W) = RI^2 x Poles = Resistance (Ω) x Load curre... More Details >>
- No：38025
- Release Date：2021/01/22 17:39
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
degrees of protection to　 IEC60529

The degess of protection for ACB is IP20 as standard (under the condition that front door is closed). For MCCB and ELCB, the degrees of protection can be IP2... More Details >>
- No：24812
- Release Date：2019/04/09 15:18

21-30 of Total 49

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