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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 Load Center (MPN QO330MQ125RB) is a 125 A, 3-phase, convertible main lug unit rated 208Y/120/240V AC with a 25kA short-circuit current rating. It offers 30 spaces, zero tandem breaker capacity, and…

SKU 3G-OTH-609572

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
QO330MQ125RB
Type
25kA, Outdoor
AC
208Y/120/240V
Phase
3
Spaces
30
Voltage
208Y/120/240V AC
Location
Outdoor
Included Enclosure Cover
Surface Cover
Max. No. Of Tandem Breakers
0
Short Circuit Current Rating
25kA
Main Circuit Breaker or Main Lug
Convertible
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 QO330MQ125RB) is a 125 A, 3-phase, convertible main lug unit rated 208Y/120/240V AC with a 25kA short-circuit current rating. It offers 30 spaces, zero tandem breaker capacity, and includes a surface cover for outdoor installations.

Frequently Asked Questions

What is the Square D QO330MQ125RB load center used for?

The Square D QO330MQ125RB is a 125 A, 3-phase, convertible main lug load center rated 208Y/120/240V AC with a 25kA short-circuit current rating. It is designed for outdoor commercial or industrial applications requiring 30 spaces and a surface cover enclosure.

What are the specifications of the Square D QO330MQ125RB?

This Square D load center is rated 125 A, 208Y/120/240V AC, 3-phase, with a 25kA short-circuit current rating. It has 30 spaces, zero tandem breaker capacity, a convertible main lug, and includes a surface cover for outdoor installation.

Where to buy the Square D QO330MQ125RB load center worldwide?

3G Electric supplies the Square D QO330MQ125RB load center to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 125 A, 3-phase, outdoor-rated unit.

How to install a Square D QO load center outdoors?

For outdoor installation of a Square D QO load center like the QO330MQ125RB, mount the enclosure on a flat, vertical surface using the provided knockouts. Ensure the unit is rated for outdoor use (NEMA 3R typically) and follow local electrical codes for conduit entry and grounding.

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, 120/240V AC, 24 Spaces, 65 kA, 12 Max. No. of Tandem Breakers, Indoor (MPN QO124L200PG). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 65 kA; Included Enclosure Cover: Order Separately; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
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Load Center: 125 A Amps, 120/240V AC, 12 Spaces, 65 kA, 12 Max. No. of Tandem Breakers, Indoor (MPN QO112L125PGC). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 65 kA; Included Enclosure Cover: Combination Flush/Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Convertible Main Lug; Location: Indoor.
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Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 25kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO342MQ225). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 25kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Circuit Breaker; Location: Indoor.
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Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 25kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO342MQ225). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 25kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Circuit Breaker; Location: Indoor.
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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.
Load Center: 150 A Amps, 208Y/120/240V AC, 30 Spaces, 25kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO330MQ150). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 25kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Circuit Breaker; Location: Indoor.
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Load Center: 150 A Amps, 208Y/120/240V AC, 30 Spaces, 25kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO330MQ150). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 25kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Circuit Breaker; Location: Indoor.
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