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SQUARE D Miniature Circuit Breaker: 25 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: 25 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QO125 is a 25 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-21680

Also listed as: QO 125 · QO-125

Brand
SQUARE D
Item
Miniature Circuit Breaker: 25 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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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
QO125
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
25 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

Technical Documents

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

Product Description

The SQUARE D QO125 is a 25 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 QO125 miniature circuit breaker used for?

The SQUARE D QO125 is a 25 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.

What are the specifications of the SQUARE D QO125?

The SQUARE D QO125 is a 1-pole, 25 A, single-phase miniature circuit breaker rated 120/240V AC with a maximum AIR rating of 10kA at 120/240V AC. It is a plug-in type from the QO Series, for use with QO Load Centers and NQ Panelboards.

Where to buy the SQUARE D QO125 worldwide?

3G Electric supplies the SQUARE D QO125 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the SQUARE D QO125 circuit breaker?

To install the SQUARE D QO125, 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. Follow all local electrical codes and manufacturer instructions.

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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