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FAQ within [ Low-voltage Circuit Breakers ]
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It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and continues power supply in the event of... More Details >>
- No:22366
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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It is an earth leakage current (Effective value of residual operating current) which definitely trips Earth Leakage Circuit Breaker and Earth Leakage Relay ... More Details >>
- No:22353
- Release Date:2018/08/31 14:33
- Category: Earth Leakage 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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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
- Category: Molded Case Circuit Breakers
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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
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Default setting from the factory
The knob of the sensitivity current selector is set to the maximum value when shipping in order to prevent unwanted earth leakage tripping when Earth Leakage... More Details >>
- No:22391
- Release Date:2018/08/31 14:33
- Category: Earth Leakage Circuit Breakers
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It is possible to modify to Rear-connection type by Mitsubishi's certified staff. More Details >>
- No:22399
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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It is a tripping zone which instantly trips, when significantly overcurrent such as short-circuit currents flow. More Details >>
- No:22363
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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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
- 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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