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SQUARE D Miniature Circuit Breaker: 80 A, 120/240V AC, Single Phase, 10kA at 120/240V AC - QO Series, Plug-In Square D Miniature Circuit Breakers
SQUARE DQO Series, Plug-In Square D Miniature Circuit Breakers

SQUARE D Miniature Circuit Breaker: 80 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QO280 is a QO Series, plug-in miniature circuit breaker rated for 80 A, 120/240V AC, single phase, with a maximum AIR rating of 10kA at 120/240V AC. This two-pole breaker is designed for use with QO Load…

SKU 3G-OTH-22137

Brand
SQUARE D
Item
Miniature Circuit Breaker: 80 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
Category
QO Series, Plug-In Square D Miniature Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QO280
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
80 A
Phase
Single
Poles
2
For Use With
QO Load Centers and NQ Panelboards
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 QO280 is a QO Series, plug-in miniature circuit breaker rated for 80 A, 120/240V AC, single phase, with a maximum AIR rating of 10kA at 120/240V AC. This two-pole breaker is designed for use with QO Load Centers and NQ Panelboards.

Frequently Asked Questions

What is the SQUARE D QO280 miniature circuit breaker used for?

The SQUARE D QO280 is a two-pole miniature circuit breaker rated for 80 A at 120/240V AC, single phase. It provides overcurrent protection for branch circuits in residential and commercial electrical panels, specifically designed for use with QO Load Centers and NQ Panelboards.

What are the specifications of the SQUARE D QO280?

The SQUARE D QO280 is a QO Series plug-in breaker rated 80 A, 120/240V AC, single phase, with a maximum AIR rating of 10kA at 120/240V AC. It has 2 poles and is designed for use with QO Load Centers and NQ Panelboards. The manufacturer part number is QO280.

Where to buy the SQUARE D QO280 worldwide?

3G Electric supplies the SQUARE D QO280 miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this QO Series breaker.

How to install the SQUARE D QO280 breaker?

To install the SQUARE D QO280, ensure the panel is de-energized. Align the breaker's plug-in jaws with the bus bar in a QO Load Center or NQ Panelboard, then press firmly until it snaps into place. Verify the breaker is fully seated before restoring power. Always follow local electrical codes.

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 qo series, plug-in 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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