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SQUARE D Miniature Circuit Breaker: 45 A, 120/240V AC, Three Phase, 10kA at 120/240V AC - QOU Series, Unit-Mount Square D Miniature Circuit Breakers
SQUARE DQOU Series, Unit-Mount Square D Miniature Circuit Breakers

SQUARE D Miniature Circuit Breaker: 45 A, 120/240V AC, Three Phase, 10kA at 120/240V AC

The SQUARE D QOU345 is a 45 A, three-phase miniature circuit breaker from the QOU Series, designed for unit-mount applications. It is rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. This…

SKU 3G-OTH-23358

Brand
SQUARE D
Item
Miniature Circuit Breaker: 45 A, 120/240V AC, Three Phase, 10kA at 120/240V AC
Category
QOU Series, Unit-Mount Square D Miniature Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QOU345
Type
Three Phase, 10kA at 120/240V AC
AC
120/240V
Amps
45 A
Phase
Three
Poles
3
For Use With
Air Conditioning and Refrigeration Equipment
Max. AIR Rating
10kA at 120/240V AC
AC Voltage Rating
120/240V AC
View Full Spec Sheet

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D QOU345 is a 45 A, three-phase miniature circuit breaker from the QOU Series, designed for unit-mount applications. It is rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. This breaker is intended for use with air conditioning and refrigeration equipment.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D qou series, unit-mount square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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