It may not trip a fault current or degrade insulation after tripping. When you connect the device in reverse, you must s

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

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

It is from -25 to 55℃ in Trip or OFF position. However, it shall be in an environment without condensation and freezing

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

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

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

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

Bar terminal material for 400A is aluminum alloy, and for 630A or higher is copper.

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FAQ within [ Molded Case Circuit Breakers ]

1-10 of Total 49

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Wrong connection in reverse

It may not trip a fault current or degrade insulation after tripping. When you connect the device in reverse, you must select a reverse-connectable model. More Details >>
- No：22345
- Release Date：2018/08/31 14:33
Plug-in type NF1600-SEW produced

It is impossible. More Details >>
- No：24817
- Release Date：2019/04/09 15:16
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
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
Storage temperature range of MCCBs and ELCBs

It is from -25 to 55℃ in Trip or OFF position. However, it shall be in an environment without condensation and freezing even in a short time. More Details >>
- No：22426
- 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
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
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
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
MCCB bar terminal material

Bar terminal material for 400A is aluminum alloy, and for 630A or higher is copper. More Details >>
- No：24819
- Release Date：2019/04/09 15:13

1-10 of Total 49

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