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SQUARE D Load Center: 125 A Amps, 208Y/120/240V AC, 30 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: 125 A Amps, 208Y/120/240V AC, 30 Spaces, 25kA, 0 Max. No. of Tandem Breakers

The Square D QO Main Circuit Breaker Load Center (MPN QO330MQ125) is a 125 A, 3-phase, 30-space indoor panel rated 208Y/120/240V AC with a 25kA short-circuit current rating. It features a convertible main-lug design…

SKU 3G-OTH-609570

Brand
SQUARE D
Item
Load Center: 125 A Amps, 208Y/120/240V AC, 30 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
QO330MQ125
Type
25kA, Indoor
AC
208Y/120/240V
Phase
3
Spaces
30
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 Main Circuit Breaker Load Center (MPN QO330MQ125) is a 125 A, 3-phase, 30-space indoor panel rated 208Y/120/240V AC with a 25kA short-circuit current rating. It features a convertible main-lug design with a plug-on neutral and requires a separately ordered enclosure cover.

Frequently Asked Questions

What is the Square D QO330MQ125 load center used for?

The Square D QO330MQ125 is a 125 A, 3-phase, 30-space indoor load center rated 208Y/120/240V AC with a 25kA short-circuit current rating. It is used for distributing power in commercial or industrial electrical panels, supporting main circuit breaker configurations and plug-on neutral wiring.

What are the specifications of the Square D QO330MQ125?

The Square D QO330MQ125 is a 125 A, 3-phase, 30-space indoor load center rated 208Y/120/240V AC with a 25kA short-circuit current rating. It features a main circuit breaker design, convertible main-lug capability, and plug-on neutral. The enclosure cover is ordered separately.

Where to buy the Square D QO330MQ125 load center worldwide?

3G Electric supplies the Square D QO330MQ125 load center 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 125 A, 3-phase, 30-space indoor panel.

How to install the Square D QO330MQ125 load center?

Install the Square D QO330MQ125 load center indoors on a flat surface, ensuring proper grounding and bonding per local codes. Connect the main circuit breaker to the 208Y/120/240V AC supply, then wire branch circuits to the plug-on neutral bus. The enclosure cover must be 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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