FAQ


FAQAbout Products

- FAQ > Low-voltage Power Distribution Products > Low-voltage Circuit Breakers > Molded Case Circuit Breakers
FAQ
Keyword Search
FAQ within [ Molded Case Circuit Breakers ]
-
AC Breakers used at DC circuit
It is not possible to use a circuit breaker for AC in DC circuit. Since the Arc-Extinguishing Device structure of circuit breaker for DC is different from th... More Details >>
- No:22381
- 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
-
Switch disconnector is a switch compatible with IEC 60947-3 standard, and it has no overcurrent tripping element. Please use it as a switch with large switch... More Details >>
- No:22379
- Release Date:2018/08/31 14:33
-
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
-
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
-
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
-
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
-
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
-
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
-
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
1-10 of Total 49