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Low-voltage Power Distribution Products
FAQ within [ Low-voltage Power Distribution Products ]
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When the AC waveform distorted due to harmonics, the value changes. (For AC without harmonics, the calculated value will match with the displayed value.) A... More Details >>
- No:22178
- Release Date:2018/08/27 16:41
- Update:2020/04/10 16:56
- Category: Electrical Indicators
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Replied value on the communication operation test of test mode (ME96SS series).
(A) Measurement values As for the measurement elements on the test mode screen, the set values are displayed. As for the other measurement elements, 0 is ... More Details >>
- No:22185
- Release Date:2018/08/27 16:41
- Update:2020/04/13 09:17
- Category: Electrical Indicators
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MCCB stands for "Molded Case Circuit Breaker." This is defined in the IEC standard, IEC 60947-2 and in the UL standard, UL 489. MCB stands for "Miniature Ci... More Details >>
- No:22340
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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Rating of a circuit breaker for transformers primary protection
When making a transformer to energize, a large inrush current may flow. The circuit breaker is therefore required to prevent unwanted trip. The selection of ... More Details >>
- No:22343
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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Earth leakage protective coordination
Since the total electric circuit length of upstream circuit breaker side is longer than that of downstream circuit breaker, constant earth leakage current b... More Details >>
- No:22369
- Release Date:2018/08/31 14:33
- Category: Earth Leakage Circuit Breakers
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Rated current and continuous current
The rated current is standard value for continuous current, short time delay current and instantaneous current. Continuous current is non-breaking current (c... More Details >>
- No:22371
- Release Date:2018/08/31 14:33
- Category: Air Circuit Breakers
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Inst tripping current value of AC/DC common breaker
At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the effective values of them are same. Ho... More Details >>
- No:22392
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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Transformers, wires and welded materials may be damaged if an abnormal energization occurs exceeding the energization cycles that are set for the inverter we... More Details >>
- No:22393
- Release Date:2018/08/31 14:33
- Category: Circuit Breakers for Use in Particular Applications
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It is possible to attach closely if there is no problem about the insulation distance between live parts such as a terminal bar and load currents are 80% or ... More Details >>
- No:22400
- Release Date:2018/08/31 14:33
- Category: Molded Case Circuit Breakers
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The operating handle is an external accessory for a circuit breaker and there is no safety standard for the operating handle itself. Therefore, there is no C... More Details >>
- No:22408
- Release Date:2018/08/31 14:33
- Category: Accessories and Related Components
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