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SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single 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: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QOU Series Miniature Circuit Breaker (SKU 2JWK7, MPN QOU1201021) is a 20 A, single-phase, unit-mount breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with…

SKU 3G-OTH-23365

Brand
SQUARE D
Item
Miniature Circuit Breaker: 20 A, 120/240V AC, Single 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
QOU1201021
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
20 A
Phase
Single
Poles
1
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 QOU Series Miniature Circuit Breaker (SKU 2JWK7, MPN QOU1201021) is a 20 A, single-phase, unit-mount breaker rated for 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. Designed for use with air conditioning and refrigeration equipment, this 1-pole breaker provides overcurrent protection in a compact form factor.

Frequently Asked Questions

What is the SQUARE D QOU1201021 miniature circuit breaker used for?

The SQUARE D QOU1201021 is a 20 A, single-phase, 1-pole miniature circuit breaker designed for overcurrent protection in air conditioning and refrigeration equipment. It is rated for 120/240V AC with a 10kA interrupting rating at 120/240V AC, making it suitable for commercial and industrial HVAC applications.

What are the specifications of the SQUARE D QOU1201021 circuit breaker?

The SQUARE D QOU1201021 is a 20 A, single-phase, 1-pole miniature circuit breaker with an AC voltage rating of 120/240V AC and a maximum AIR rating of 10kA at 120/240V AC. It is part of the QOU Series, unit-mount design, and is intended for use with air conditioning and refrigeration equipment.

Where to buy the SQUARE D QOU1201021 circuit breaker worldwide?

3G Electric supplies the SQUARE D QOU1201021 miniature circuit breaker worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this SQUARE D QOU Series breaker.

How to install the SQUARE D QOU1201021 circuit breaker?

Install the SQUARE D QOU1201021 by ensuring the panel is de-energized, then snap the unit-mount breaker onto the DIN rail or panel mount. Connect line and load wires to the terminals per the wiring diagram, torque to manufacturer specifications, and verify the 20 A rating matches the circuit requirements.

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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