We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
SQUARE D Load Center: 125 A Amps, 208Y/120/240V AC, 20 Spaces, 65kA, 0 Max. No. of Tandem Breakers - Square D QO - Main Lug Load Centers
SQUARE DSquare D QO - Main Lug Load Centers

SQUARE D Load Center: 125 A Amps, 208Y/120/240V AC, 20 Spaces, 65kA, 0 Max. No. of Tandem Breakers

The Square D QO Main Lug Load Center (MPN QO320L125G) is a 125 A, 3-phase, 20-space indoor panel rated 208Y/120/240V AC with a 65kA short-circuit current rating. It accepts no tandem breakers and requires a…

SKU 3G-OTH-609662

Brand
SQUARE D
Item
Load Center: 125 A Amps, 208Y/120/240V AC, 20 Spaces, 65kA, 0 Max. No. of Tandem Breakers
Category
Square D QO - Main Lug Load Centers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SQUARE D
Manufacturer Part Number
QO320L125G
Type
65kA, Indoor
AC
208Y/120/240V
Phase
3
Spaces
20
Voltage
208Y/120/240V AC
Location
Indoor
Included Enclosure Cover
Order Separately
Max. No. Of Tandem Breakers
0
Short Circuit Current Rating
65kA
Main Circuit Breaker or Main Lug
Main Lug
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Square D QO Main Lug Load Center (MPN QO320L125G) is a 125 A, 3-phase, 20-space indoor panel rated 208Y/120/240V AC with a 65kA short-circuit current rating. It accepts no tandem breakers and requires a separately ordered enclosure cover.

Frequently Asked Questions

What is the Square D QO320L125G load center used for?

The Square D QO320L125G is a 125 A, 3-phase main lug load center for indoor 208Y/120/240V AC applications. It provides 20 spaces for branch circuits in commercial or industrial power distribution, with a 65kA short-circuit rating. It requires a separately ordered enclosure cover.

What are the specifications of the Square D QO320L125G?

The Square D QO320L125G is a 125 A, 3-phase, 20-space indoor load center rated 208Y/120/240V AC with a 65kA short-circuit current rating. It is a main lug type, accepts zero tandem breakers, and the enclosure cover is ordered separately. MPN: QO320L125G.

Where to buy the Square D QO320L125G load center worldwide?

3G Electric supplies the Square D QO320L125G 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 125 A, 3-phase indoor panel.

How to install a Square D QO main lug load center?

Install the Square D QO main lug load center on a flat, vertical surface indoors. Ensure the 208Y/120/240V AC supply is de-energized. Mount the panel, route cables, and terminate branch circuits per local codes. The enclosure cover is ordered separately. Always follow NEC guidelines.

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 load centers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from SQUARE D

View all SQUARE D parts →
Load Center: 100 A Amps, 120/240V AC, 6 Spaces, 10kA, 6 Max. No. of Tandem Breakers, Flush Cover (MPN QO612L100DF). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 10kA; Included Enclosure Cover: Flush Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
SQUARE D
Load Center: 100 A Amps, 120/240V AC, 6 Spaces, 10kA, 6 Max. No. of Tandem Breakers, Flush Cover (MPN QO612L100DF). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 10kA; Included Enclosure Cover: Flush Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
Load Center: 100 A Amps, 120/240V AC, 8 Spaces, 10kA, 8 Max. No. of Tandem Breakers, Surface Cover (MPN QO816L100DS). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 10kA; Included Enclosure Cover: Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
SQUARE D
Load Center: 100 A Amps, 120/240V AC, 8 Spaces, 10kA, 8 Max. No. of Tandem Breakers, Surface Cover (MPN QO816L100DS). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 10kA; Included Enclosure Cover: Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
Load Center: 125 A Amps, 208Y/120/240V AC, 24 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO324L125G). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
SQUARE D
Load Center: 125 A Amps, 208Y/120/240V AC, 24 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO324L125G). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Outdoor (MPN QO342L225GRB). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Surface Cover; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
SQUARE D
Load Center: 225 A Amps, 208Y/120/240V AC, 42 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Outdoor (MPN QO342L225GRB). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Surface Cover; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
Load Center: 40 A Amps, 120/240V AC, 2 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Surface Cover (MPN QO2L40RB). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
SQUARE D
Load Center: 40 A Amps, 120/240V AC, 2 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Surface Cover (MPN QO2L40RB). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
Load Center: 100 A Amps, 120/240V AC, 6 Spaces, 10kA, 6 Max. No. of Tandem Breakers, Surface Cover (MPN QO612L100RB). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 10kA; Included Enclosure Cover: Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
SQUARE D
Load Center: 100 A Amps, 120/240V AC, 6 Spaces, 10kA, 6 Max. No. of Tandem Breakers, Surface Cover (MPN QO612L100RB). Key specifications — Voltage: 120/240V AC; Short Circuit Current Rating: 10kA; Included Enclosure Cover: Surface Cover; Phase: 1; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
Load Center: 200 A Amps, 208Y/120/240V AC, 30 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO330L200G). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
SQUARE D
Load Center: 200 A Amps, 208Y/120/240V AC, 30 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO330L200G). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Order Separately; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Indoor.
Load Center: 200 A Amps, 208Y/120/240V AC, 30 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Outdoor (MPN QO330L200GRB). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Surface Cover; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.
SQUARE D
Load Center: 200 A Amps, 208Y/120/240V AC, 30 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Outdoor (MPN QO330L200GRB). Key specifications — Voltage: 208Y/120/240V AC; Short Circuit Current Rating: 65kA; Included Enclosure Cover: Surface Cover; Phase: 3; Main Circuit Breaker or Main Lug: Main Lug; Location: Outdoor.