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SQUARE D Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 25kA, 0 Max. No. of Tandem Breakers - Square D QO - Main Lug, Convertible, Plug-On Neutral Load Centers
SQUARE DSquare D QO - Main Lug, Convertible, Plug-On Neutral Load Centers

SQUARE D Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 25kA, 0 Max. No. of Tandem Breakers

The Square D QO Load Center (MPN QO342MQ225) is a 225 A, 3-phase main circuit breaker panel rated for 208Y/120/240V AC with a 25kA short circuit current rating. It offers 42 spaces, supports 0 tandem breakers, and is…

SKU 3G-OTH-609630

Brand
SQUARE D
Item
Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 25kA, 0 Max. No. of Tandem Breakers
Category
Square D QO - Main Lug, Convertible, Plug-On Neutral Load Centers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QO342MQ225
Type
25kA, Indoor
AC
208Y/120/240V
Phase
3
Spaces
42
Voltage
208Y/120/240V AC
Location
Indoor
Included Enclosure Cover
Order Separately
Max. No. Of Tandem Breakers
0
Short Circuit Current Rating
25kA
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 QO Load Center (MPN QO342MQ225) is a 225 A, 3-phase main circuit breaker panel rated for 208Y/120/240V AC with a 25kA short circuit current rating. It offers 42 spaces, supports 0 tandem breakers, and is designed for indoor use with a plug-on neutral configuration. The enclosure cover is ordered separately.

Frequently Asked Questions

What is the Square D QO342MQ225 load center used for?

The Square D QO342MQ225 is a 225 A, 3-phase main circuit breaker load center used for distributing power in commercial or industrial indoor electrical systems. It accepts plug-on neutral breakers and is rated 208Y/120/240V AC with a 25kA short circuit rating.

What are the specifications of the Square D QO342MQ225 load center?

The Square D QO342MQ225 load center is rated 225 A, 208Y/120/240V AC, 3-phase, with a 25kA short circuit current rating. It has 42 spaces, supports 0 tandem breakers, and includes a main circuit breaker. The enclosure cover is ordered separately. It is designed for indoor use.

Where to buy the Square D QO342MQ225 load center worldwide?

3G Electric supplies the Square D QO342MQ225 load center 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 225 A, 3-phase main breaker panel.

How to install the Square D QO342MQ225 load center?

Installation of the Square D QO342MQ225 load center must follow local electrical codes and the manufacturer's instructions. Mount the indoor-rated enclosure securely, connect the main feeder conductors to the main circuit breaker terminals, and install plug-on neutral breakers in the 42 spaces. The cover is ordered separately.

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 lug, 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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Load Center: 200 A Amps, 208Y/120/240V AC, 42 Spaces, 25kA, 0 Max. No. of Tandem Breakers, Outdoor (MPN QO342MQ200RB). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 25kA; Included Enclosure Cover: Surface Cover; Phase: 3; Main Circuit Breaker or Main Lug: Main Circuit Breaker; Location: Outdoor.
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