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FAQ within [ Low-voltage Circuit Breakers ]
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Select rated current sensitivity
Please select rated current sensitivity ,according to the protection purpose and the protective grounding resistance value of the load equipment. If you alre... More Details >>
- No:22346
- Release Date:2018/08/31 14:33
- Category: Earth Leakage Circuit Breakers
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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
- Category: Molded Case Circuit Breakers
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Short circuit current calculation software
You can calculate that with MELSHORT 2 (Free of charge). More Details >>
- No:22394
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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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
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It is possible to reverse-connect if the circuit voltage of UL789 listed products is AC240V or less. Since they are double standard products of UL/CSA and CE... More Details >>
- No:22411
- Release Date:2018/08/31 14:33
- Category: Earth Leakage Circuit Breakers
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Max. operational voltage for AC/DC Common
When it is connected as special connection, AC/DC compatible circuit breaker can be used with DC 250V or more (3-pole type is DC400V and 4-pole type is DC500... More Details >>
- No:22445
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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It is not possible to use standard AE-SW in DC circuit. Special DC use AE-SW is provided if specified. More Details >>
- No:22446
- Release Date:2018/08/31 14:33
- Category: Air Circuit Breakers
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Plug-in type NF1600-SEW produced
It is impossible. More Details >>
- No:24817
- Release Date:2019/04/09 15:16
- Category: Molded Case Circuit Breakers
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4-pole type in 100VAC or 110VAC
The rated operational voltages for them are 200 to 440VAC. If using them in 100VAC or 110VAC circuit, earth-leakage protection does not operate. More Details >>
- No:24820
- Release Date:2019/04/09 15:10
- Category: Earth Leakage Circuit Breakers
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IEC 60947-2 is an international standard for circuit breakers. The rated voltage for the applicable circuit breaker is 1000V AC or less, or DC 1500V DC or le... More Details >>
- No:22361
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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