It is utilization category specified in IEC 60947-4-1. AC-4 category is usedfor inching or plugging etc.

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

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

It is an instantaneous tripping circuit breaker which does not have overcurrent tripping characteristic for standard cir

It means a space between the edge of a exhaust port and panel component ( such as wall or duct) of a circuit breaker. Th

Since the total electric circuit length of upstream circuit breaker side is longer than that of downstream circuit break

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

It is no problem. The memorized data such as active energy, reactive energy, and apparent energy is not deleted. The

Flatness of mounting plane: 1 mm or less. In addition, it is necessary to consider the horizontality of the panel.

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

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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 ]

41-50 of Total 322

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About Low-voltage Power Distribution Products

It is utilization category specified in IEC 60947-4-1. AC-4 category is usedfor inching or plugging etc. More Details >>
- No：23250
- Release Date：2018/09/12 15:11
- Category： Motor Starters
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
- Category： Molded Case 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
MCCB Inst only

It is an instantaneous tripping circuit breaker which does not have overcurrent tripping characteristic for standard circuit breaker and only protects agains... More Details >>
- No：22383
- Release Date：2018/08/31 14:33
- Category： Circuit Breakers for Use in Particular Applications
Arc space

It means a space between the edge of a exhaust port and panel component ( such as wall or duct) of a circuit breaker. The arc space is needed for smoothly di... More Details >>
- No：22373
- Release Date：2018/08/31 14:33
- Category： Molded Case Circuit Breakers
Earth leakage protective coordination

Since the total electric circuit length of upstream circuit breaker side is longer than that of downstream circuit breaker, constant earth leakage current b... More Details >>
- No：22369
- Release Date：2018/08/31 14:33
- Category： Earth Leakage Circuit Breakers
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
- Category： Molded Case Circuit Breakers
Availability for changing set values while operating (ME96SS series).

It is no problem. The memorized data such as active energy, reactive energy, and apparent energy is not deleted. The measurement is continued during setti... More Details >>
- No：22164
- Release Date：2018/08/27 16:41
- Update：2020/04/10 16:19
- Category： Electrical Indicators
Horizontal allowable distance when installing ACB

Flatness of mounting plane: 1 mm or less.In addition, it is necessary to consider the horizontality of the panel. More Details >>
- No：37698
- Release Date：2020/01/17 17:32
- Category： Air Circuit Breakers
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
- Category： Molded Case Circuit Breakers

41-50 of Total 322

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