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SQUARE D Miniature Circuit Breaker: 30 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: 30 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QO2301021 is a 30 A, single-phase, 2-pole miniature circuit breaker from the QO Series, designed for plug-in installation in QO Load Centers and NQ Panelboards. It has an AC voltage rating of 120/240V AC…

SKU 3G-OTH-21748

Brand
SQUARE D
Item
Miniature Circuit Breaker: 30 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
QO2301021
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
30 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 QO2301021 is a 30 A, single-phase, 2-pole miniature circuit breaker from the QO Series, designed for plug-in installation in 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 QO2301021 miniature circuit breaker used for?

The SQUARE D QO2301021 is a 30 A, 2-pole miniature circuit breaker used to protect branch circuits in residential and light commercial QO Load Centers and NQ Panelboards. It provides overcurrent and short-circuit protection for single-phase 120/240V AC systems, with a 10kA interrupting rating.

What are the specifications of the SQUARE D QO2301021?

The SQUARE D QO2301021 is a 30 A, single-phase, 2-pole miniature circuit breaker rated 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is designed for plug-in installation in QO Load Centers and NQ Panelboards. The manufacturer part number is QO2301021.

Where to buy the SQUARE D QO2301021 worldwide?

3G Electric supplies the SQUARE D QO2301021 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine SQUARE D QO Series breaker.

How to install the SQUARE D QO2301021 circuit breaker?

To install the SQUARE D QO2301021, ensure the load center is de-energized. Align the breaker's plug-in tabs with the bus bar slots in a QO Load Center or NQ Panelboard, then press firmly until it snaps into place. Verify the handle is in the OFF position before connecting load wires. Follow all 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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