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

Only ACB fixed type is available for DC circuits.

It is a current that does not leak-trip even if there is ground fault current or leakage current. In the standard, it is

Basically you have to consider the effect of harmonic waves, but there are two ways as below. 1. Refer to the recommende

Earth Leakage Circuit Breaker and Earth Leakage Relay operate at higher than 50% but not exceeding 100% of the rated res

It is same as the maximum rated operational voltage.

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

The maximum operating time of Time-delay type Earth Leakage Circuit Breaker can be switched to 0.45s, 1.0s and 2.0s. The

It is Earth Leakage Circuit Breaker that the earth leakage trip operating time at the rated residual operating current (

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

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Low-voltage Circuit Breakers

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FAQ within [ Low-voltage Circuit Breakers ]

61-70 of Total 124

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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
- Category： Molded Case Circuit Breakers
ACB for DC circuit

Only ACB fixed type is available for DC circuits. More Details >>
- No：38027
- Release Date：2021/01/22 17:38
- Category： Air Circuit Breakers
Residual non-operating current

It is a current that does not leak-trip even if there is ground fault current or leakage current. In the standard, it is 50 % of the rated residual operating... More Details >>
- No：22356
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
How to select at Inverter circuit

Basically you have to consider the effect of harmonic waves, but there are two ways as below. 1. Refer to the recommended rated current by inverter manufactu... More Details >>
- No：22360
- Release Date：2018/08/31 14:33
- Category： Molded Case Circuit Breakers
Rated current sensitivity

Earth Leakage Circuit Breaker and Earth Leakage Relay operate at higher than 50% but not exceeding 100% of the rated residual operating current IΔn. The eart... More Details >>
- No：22364
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
ELCB Rated insulation voltage

It is same as the maximum rated operational voltage. More Details >>
- No：22365
- Release Date：2018/08/31 14:33
- Category： Earth Leakage 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
Time Delay type at the maximum operating time

The maximum operating time of Time-delay type Earth Leakage Circuit Breaker can be switched to 0.45s, 1.0s and 2.0s. The operating time is:* when it is 0.45s... More Details >>
- No：22375
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
High-speed residual operate CBR

It is Earth Leakage Circuit Breaker that the earth leakage trip operating time at the rated residual operating current (IΔn) is within 0.1 sec, and the earth... More Details >>
- No：22380
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
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
- Category： Molded Case Circuit Breakers

61-70 of Total 124

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