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SQUARE D Load Center: 225 A Amps, 120/240V AC, 42 Spaces, 22 kA, 10 Max. No. of Tandem Breakers - Square D QO - Main Breaker, Convertible, Plug-On Neutral Load Centers
SQUARE DSquare D QO - Main Breaker, Convertible, Plug-On Neutral Load Centers

SQUARE D Load Center: 225 A Amps, 120/240V AC, 42 Spaces, 22 kA, 10 Max. No. of Tandem Breakers

The Square D QO142M225P is a 225 A, 1-phase, 120/240V AC main breaker load center with 42 spaces and a 22 kA short circuit current rating. Designed for indoor use, it is convertible and features a plug-on neutral…

SKU 3G-OTH-721913

Brand
SQUARE D
Item
Load Center: 225 A Amps, 120/240V AC, 42 Spaces, 22 kA, 10 Max. No. of Tandem Breakers
Category
Square D QO - Main Breaker, Convertible, Plug-On Neutral Load Centers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QO142M225P
Type
22 kA, Indoor
AC
120/240V
Phase
1
Spaces
42
Voltage
120/240V AC
Location
Indoor
Included Enclosure Cover
Order Separately
Max. No. Of Tandem Breakers
10
Short Circuit Current Rating
22 kA
Main Circuit Breaker or Main Lug
Main Circuit Breaker
View Full Spec Sheet

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

Product Description

The Square D QO142M225P is a 225 A, 1-phase, 120/240V AC main breaker load center with 42 spaces and a 22 kA short circuit current rating. Designed for indoor use, it is convertible and features a plug-on neutral design, supporting up to 10 tandem breakers. The enclosure cover is ordered separately.

Frequently Asked Questions

What is the Square D QO142M225P load center used for?

The Square D QO142M225P is a 225 A main breaker load center for distributing power in residential or light commercial indoor electrical systems. It supports 42 circuits, up to 10 tandem breakers, and operates at 120/240V AC with a 22 kA short circuit rating.

What are the specifications of the Square D QO142M225P?

The Square D QO142M225P is a 225 A, 1-phase, 120/240V AC main breaker load center with 42 spaces and a 22 kA short circuit current rating. It is designed for indoor use, convertible, and features a plug-on neutral design. The enclosure cover is ordered separately.

Where to buy the Square D QO142M225P load center worldwide?

3G Electric supplies the Square D QO142M225P load center worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this 225 A, 42-space main breaker panel to your facility. Contact us for availability and lead time.

How to install the Square D QO142M225P load center?

Install the Square D QO142M225P indoors on a flat surface, ensuring proper grounding and compliance with local electrical codes. Use a compatible enclosure cover (ordered separately) and follow the manufacturer's wiring diagram for the 120/240V AC, 1-phase main breaker configuration.

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 square d qo - main breaker, convertible, plug-on neutral load centers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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