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

Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified.

In order to prevent breakdowns and human injuries, it is necessary to select a control device having protection structur

If switching of neutral pole is not needed, it is possible to use 3-pole MCCB for 3-phase 4- wire circuit. Generally, it

Use with 24V, 0.5A or more for AC and DC in normal use. If the breakers are used less than 24V, use with 6V, 1A or more.

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

It is the maximum voltage which meets the performance criteria for the rated operational voltage.

It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and co

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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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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
Default setting of electronic breakers

Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified. However, only the pre-alarm is set to... More Details >>
- No：22438
- Release Date：2018/08/31 14:33
Degree of protection

In order to prevent breakdowns and human injuries, it is necessary to select a control device having protection structure suitable for each purpose. The prot... More Details >>
- No：22443
- Release Date：2018/08/31 14:33
lower limit of operational voltage for DC

It is DC 24V. More Details >>
- No：24816
- Release Date：2019/04/09 15:17
Plug-in type NF1600-SEW produced

It is impossible. More Details >>
- No：24817
- Release Date：2019/04/09 15:16
MCCB 3P4W 3P use

If switching of neutral pole is not needed, it is possible to use 3-pole MCCB for 3-phase 4- wire circuit. Generally, it is recommended to use 4-pole circuit... More Details >>
- No：22385
- Release Date：2018/08/31 14:33
Minimum operating voltage

Use with 24V, 0.5A or more for AC and DC in normal use. If the breakers are used less than 24V, use with 6V, 1A or more. Moreover, regular inspection of is ... More Details >>
- No：22401
- 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
Operational voltage

It is the maximum voltage which meets the performance criteria for the rated operational voltage. More Details >>
- No：22367
- Release Date：2018/08/31 14:33
Selective coordination

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

21-30 of Total 49

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