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FAQ within [ Low-voltage Circuit Breakers ]
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It is a button in order to mechanically trip a circuit breaker outside. It is used to confirm switching mechanism at the regular maintenance or sequence-chec... More Details >>
- No:22368
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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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
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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
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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
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Operating ambient temperature is set to - 10℃ to 40℃. ( However, its average over a period of 24h does not exceed 35℃.) In the case that the ambient temperat... More Details >>
- No:22370
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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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
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Where UVT power supplied from?
Do not take the control power supply of UVT ("Resettable type" and "Reset prevention type") from the secondary side of the breakers. If taking the control po... More Details >>
- No:22415
- Release Date:2018/08/31 14:33
- Category: Accessories and Related Components
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A shunt trip (SHT) is an internal accessory which electrically and remotely trips a circuit breaker. When the supply voltage of the SHT is remained between 7... More Details >>
- No:22342
- Release Date:2018/08/31 14:33
- Category: Accessories and Related Components
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Inverse time delay operating characteristic
It is a characteristic that operating time inversely become shorter as current increases. For Molded Case Circuit Breakers, protection characteristic meeting... More Details >>
- No:22387
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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How to install cassette type accessories
A circuit breaker shall be Trip position when installing Cassette type accessory. The breaker may be damaged if installing in "ON" or "OFF" position. Moreove... More Details >>
- No:22422
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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