No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If usin

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

It is a product that can control two main circuit elements independently,and can be downsized when two or more single-po

In the withstand voltage test, 2500V is applied for 1 min. The appliedlocation is as follows.1. Between the conductive p

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

Generally, there is no Mechanical Trip indication of continuous output for AE-SW. It is necessary to indicate electrical

For ACB, Line and Load are not defined on the main circuit terminals. Reverse connection is available without any limita

It is possible to reverse-connect if the circuit voltage of UL789 listed products is AC240V or less. Since they are doub

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

Pressing buttons of the “+” and the “-” at the same time on the measurement screen for 2 seconds shifts the unit of ac

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Low-voltage Power Distribution Products

Low-voltage Circuit Breakers(124)

Air Circuit Breakers(23)
Molded Case Circuit Breakers(49)
Earth Leakage Circuit Breakers(21)
Circuit Breakers for Equipment(2)
Circuit Breakers for Use in Particular Applications(6)
Accessories and Related Components(21)
Miniature Circuit Breakers(2)
Contactors and Motor Starters(142)

Motor Starters(142)

Power Management Meters(57)

Electrical Indicators(57)

FAQ within [ Low-voltage Power Distribution Products ]

111-120 of Total 322

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2P MCCB only 1-pole use

No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If using it as 1-pole circuit breaker, these... More Details >>
- No：22382
- 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
About Low-voltage Power Distribution Products

It is a product that can control two main circuit elements independently,and can be downsized when two or more single-pole type SSCs are used.It is also effe... More Details >>
- No：23376
- Release Date：2018/09/12 15:12
- Category： Motor Starters
About Low-voltage Power Distribution Products

In the withstand voltage test, 2500V is applied for 1 min. The appliedlocation is as follows.1. Between the conductive part and the grounded metal part, and ... More Details >>
- No：23305
- Release Date：2018/09/12 15:11
- Category： Motor Starters
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
- Category： Molded Case Circuit Breakers
ACB trip indication

Generally, there is no Mechanical Trip indication of continuous output for AE-SW. It is necessary to indicate electrically by using OCR Alarm (AL) output or ... More Details >>
- No：22432
- Release Date：2018/08/31 14:33
- Category： Air Circuit Breakers
ACB　reverse connection

For ACB, Line and Load are not defined on the main circuit terminals. Reverse connection is available without any limitation. More Details >>
- No：22425
- Release Date：2018/08/31 14:33
- Category： Air Circuit Breakers
UL ELCBs Reverse connection

It is possible to reverse-connect if the circuit voltage of UL789 listed products is AC240V or less. Since they are double standard products of UL/CSA and CE... More Details >>
- No：22411
- 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
Checking non-displayed digit of active energy (ME96SS series).

Pressing buttons of the “+” and the “-” at the same time on the measurement screen for 2 seconds shifts the unit of active energy as follows. The measured ... More Details >>
- No：22172
- Release Date：2018/08/27 16:41
- Update：2020/04/10 16:44
- Category： Electrical Indicators

111-120 of Total 322

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