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SQUARE D Miniature Circuit Breaker: 50 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: 50 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QO150 is a 50 A, single-phase, plug-in miniature circuit breaker from the QO Series, designed for use with QO Load Centers and NQ Panelboards. It has an AC voltage rating of 120/240V AC and a maximum AIR…

SKU 3G-OTH-21954

Brand
SQUARE D
Item
Miniature Circuit Breaker: 50 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
QO150
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
50 A
Phase
Single
Poles
1
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 QO150 is a 50 A, single-phase, plug-in miniature circuit breaker from the QO Series, designed for use with QO Load Centers and NQ Panelboards. It has an AC voltage rating of 120/240V AC and a maximum AIR rating of 10kA at 120/240V AC.

Frequently Asked Questions

What is the SQUARE D QO150 miniature circuit breaker used for?

The SQUARE D QO150 is a 50 A, single-phase, plug-in miniature circuit breaker from the QO Series. It protects branch circuits in residential and commercial electrical panels, specifically designed for use with QO Load Centers and NQ Panelboards, providing overcurrent and short-circuit protection at 120/240V AC.

What are the specifications of the SQUARE D QO150 circuit breaker?

The SQUARE D QO150 is rated 50 A, 120/240V AC, single phase, with a maximum AIR rating of 10kA at 120/240V AC. It has 1 pole and a plug-in mounting style. This miniature circuit breaker is designed for use with QO Load Centers and NQ Panelboards, manufactured by SQUARE D.

Where to buy the SQUARE D QO150 circuit breaker worldwide?

3G Electric supplies the SQUARE D QO150 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this genuine SQUARE D QO150 part for your electrical panel needs.

How to install the SQUARE D QO150 circuit breaker?

To install the SQUARE D QO150, ensure the panel is de-energized. Align the breaker's plug-in tabs with the bus bar in a QO Load Center or NQ Panelboard, then press firmly until it snaps into place. Always follow local electrical codes and the manufacturer's instructions for safe installation.

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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