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Air Circuit Breakers AE-SW
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Low-voltage Power Distribution Products
MOLDED CASE CIRCUIT BREAKERS AE-SW

The main circuit breaker for buildings and factories

The air circuit breakers are ideal as a main circuit breaker and realize the advancement of power distribution equipment.The air circuit breaker has a wide characteristics adjustment width, high performance operating durability and a high rated short-time current carrying capacity and has a variety of accessories available.

It is therefore used widely as the main circuit breaker for buildings and factories and as the breaker for marine vessels.


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Types of Low-voltage Circuit Breakers

The following IEC Standards apply to low-voltage circuit breakers.
There are multiple product standards for the same type of device.
The standards system applies to industrial use (a skilled person handling the device) and household use (a person handling device has no experience.)

Typical
abbreviation

IEC standard

Mitsubishi Models

MCCB,
ACB

IEC 60947-2

Low-voltage switchgear and control gear - Part 2:
Circuit-breakers

NF type low-voltage circuit breaker
AE type low-voltage air circuit breaker

ELCB

IEC 60947-2
Annex B

Low-voltage switchgear and control gear - Part 2:
Circuit-breakers Annex B: Circuit-breakers incorporating residual current protection

NV type earth leakage circuit breaker

MCB

IEC 60898-1/-2

Circuit-breakers for overcurrent protection for household and similar installations

BH-D, BHW-T type miniature circuit breaker

RCCB

IEC 61008-1

Residual current operated circuit-breakers without integral overcurrent protection for household and similar uses (RCCBs)

BV-D, BVW-T type earth leakage circuit breaker

RCBO

IEC 61009-1

Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs)

BV-DN type earth leakage circuit breaker

CBE

IEC 60934

Circuit-breakers for equipment

CP type circuit protector

·         ACB: Air Circuit Breaker

·         MCCB: Molded Case Circuit Breaker

·         ELCB: Earth-Leakage Circuit Breaker

·         MCB: Miniature Circuit Breaker

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