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

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

It is a characteristic that operating time inversely become shorter as current increases. For Molded Case Circuit Breake

The range of ambient temperature is from -10 to 40 degree Celsius for not only MCCB but also including Earth Leakage Cir

Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalo

First, turn OFF the upstream circuit breaker and the relevant circuit breaker. You must not work in the state where volt

At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the

It is a method which breaks short circuit current with both upstream and downstream circuit breakers. For example, in th

It is a button in order to trip MCCB. It is used for regular inspection of the switching mechanism, and trip condition o

It is voltage which ensures withstand voltage and it is used as basis to determine insulation distance.

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FAQ within [ Molded Case Circuit Breakers ]

1-10 of Total 49

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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
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
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
Ambient temperature

The range of ambient temperature is from -10 to 40 degree Celsius for not only MCCB but also including Earth Leakage Circuit breaker, Earth Leakage Relay and... More Details >>
- No：22352
- Release Date：2018/08/31 14:33
MCCB Reverse connection

Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalog. If it says "Possible", MCCB can be... More Details >>
- No：22442
- Release Date：2018/08/31 14:33
Electronic MCCB 400-1600A How to change rated current and characteristic curve (Except CE breakers)

First, turn OFF the upstream circuit breaker and the relevant circuit breaker. You must not work in the state where voltage is applied to the relevant circui... More Details >>
- No：22439
- Release Date：2018/08/31 14:33
- Update：2018/08/31 14:35
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
Cascade breaking

It is a method which breaks short circuit current with both upstream and downstream circuit breakers. For example, in the case that short circuit current at ... More Details >>
- No：22357
- Release Date：2018/08/31 14:33
How to use Trip button

It is a button in order to trip MCCB. It is used for regular inspection of the switching mechanism, and trip condition of MCCB when Alarm switch (AL) and Shu... More Details >>
- No：22444
- Release Date：2018/08/31 14:33
Rated insulation voltage

It is voltage which ensures withstand voltage and it is used as basis to determine insulation distance. More Details >>
- No：22362
- Release Date：2018/08/31 14:33

1-10 of Total 49

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