It is a button in order to mechanically trip a circuit breaker outside. It is used to confirm switching mechanism at the

The push button is used for testing whether it definitely trips when an earth leakage current occurs. At this test, a Le

MCCB stands for "Molded Case Circuit Breaker." This is defined in the IEC standard, IEC 60947-2 and in the UL standard,

The degess of protection for ACB is IP20 as standard (under the condition that front door is closed). For MCCB and ELCB,

Only electricians who have enough technical knowledge should change the setting of overcurrent tripping and earth leakag

It is a tripping zone which instantly trips, when significantly overcurrent such as short-circuit currents flow.

The circuit breaker is designed to attain a predetermined value of limiting non-actuating time corresponding to a given

You can calculate that with MELSHORT 2 (Free of charge).

A circuit breaker shall be Trip position when installing Cassette type accessory. The breaker may be damaged if installi

When making a transformer to energize, a large inrush current may flow. The circuit breaker is therefore required to pre

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Low-voltage Circuit Breakers

Miniature Circuit Breakers(2)

FAQ within [ Low-voltage Circuit Breakers ]

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Trip button

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
Test button

The push button is used for testing whether it definitely trips when an earth leakage current occurs. At this test, a Leakage Display button will be come out... More Details >>
- No：22347
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
MCCB and MCB as terms

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
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
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
Instantaneous tripping

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
Time-delay CBR

The circuit breaker is designed to attain a predetermined value of limiting non-actuating time corresponding to a given value of residual current. Our time-d... More Details >>
- No：22351
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
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
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
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

1-10 of Total 123

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