Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SQUARE D QO403L60NF Main Lug Load Center - Square D QO - Main Lug Load Centers
SQUARE DSquare D QO - Main Lug Load Centers

SQUARE D QO403L60NF Main Lug Load Center

The Square D QO403L60NF is a 60 A main lug load center with 3 spaces, rated 208Y/120/240V AC and 65kA short circuit current. It features a flush cover, is designed for indoor use, and supports 3-phase operation.

SKU 3G-OTH-609610

Brand
SQUARE D
Item
QO403L60NF Main Lug Load Center
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SQUARE D
Manufacturer Part Number
QO403L60NF
Type
65kA, Flush Cover
AC
208Y/120/240V
Phase
3
Spaces
3
Voltage
208Y/120/240V AC
Location
Indoor
Included Enclosure Cover
Flush Cover
Max. No. Of Tandem Breakers
0
Short Circuit Current Rating
65kA
Main Circuit Breaker or Main Lug
Main Lug

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 QO403L60NF is a 60 A main lug load center with 3 spaces, rated 208Y/120/240V AC and 65kA short circuit current. It features a flush cover, is designed for indoor use, and supports 3-phase operation.

Frequently Asked Questions

What is the Square D QO403L60NF load center used for?

The Square D QO403L60NF is a 60 A main lug load center designed for indoor 3-phase applications. It distributes power in commercial or light industrial settings where a main breaker is not required, supporting 208Y/120/240V AC systems with a 65kA short circuit rating.

What are the specifications of the Square D QO403L60NF?

The Square D QO403L60NF is a 60 A, 3-space main lug load center rated 208Y/120/240V AC with a 65kA short circuit current rating. It includes a flush cover, supports 3-phase operation, is for indoor use, and accepts no tandem breakers.

Where to buy the Square D QO403L60NF worldwide?

3G Electric supplies the Square D QO403L60NF 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 60 A main lug panel.

How to install the Square D QO403L60NF load center?

Install the Square D QO403L60NF indoors on a flat surface, ensuring proper grounding per local codes. Connect line conductors to the main lugs and branch circuits to the QO breakers. Always de-energize the panel before installation and follow NEC guidelines for 3-phase systems.

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
Not sure this is the right part? Photo-identify it

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
Indoor main lug load center rated 100A at 120/240V AC, single-phase, with a 10kA short-circuit current rating. Provides 8 spaces and accepts up to 8 tandem breakers for branch circuit distribution. Includes a surface-mount cover
SQUARE D
Indoor main lug load center rated 100A at 120/240V AC, single-phase, with a 10kA short-circuit current rating. Provides 8 spaces and accepts up to 8 tandem breakers for branch circuit distribution. Includes a surface-mount cover
This 125A main lug load center is designed for 3-phase, 208Y/120/240V AC indoor installations. It provides 24 spaces for branch circuit breakers and has a 65kA short-circuit current rating. The enclosure cover must be ordered separately; no tandem breakers are permitted
SQUARE D
This 125A main lug load center is designed for 3-phase, 208Y/120/240V AC indoor installations. It provides 24 spaces for branch circuit breakers and has a 65kA short-circuit current rating. The enclosure cover must be ordered separately; no tandem breakers are permitted
125A main lug load center for indoor 3-phase power distribution. Rated 208Y/120/240V AC with a 65kA short-circuit current rating. Provides 20 spaces for branch circuits; accepts no tandem breakers. Enclosure cover ordered separately
SQUARE D
125A main lug load center for indoor 3-phase power distribution. Rated 208Y/120/240V AC with a 65kA short-circuit current rating. Provides 20 spaces for branch circuits; accepts no tandem breakers. Enclosure cover ordered separately
225 A main lug load center for 208Y/120/240V AC, 3-phase systems. Rated 65kA short-circuit current, with 42 spaces and no tandem breaker capacity. Includes surface cover for outdoor installation. Used to distribute power in commercial or industrial settings where a main breaker is located upstream
SQUARE D
225 A main lug load center for 208Y/120/240V AC, 3-phase systems. Rated 65kA short-circuit current, with 42 spaces and no tandem breaker capacity. Includes surface cover for outdoor installation. Used to distribute power in commercial or industrial settings where a main breaker is located upstream
Main lug load center rated 40A, 120/240V AC, 1-phase, with 2 spaces and 0 maximum tandem breakers. Short circuit current rating 65kA. Includes surface cover for outdoor use. Suitable for branch circuit distribution in residential or light commercial applications
SQUARE D
Main lug load center rated 40A, 120/240V AC, 1-phase, with 2 spaces and 0 maximum tandem breakers. Short circuit current rating 65kA. Includes surface cover for outdoor use. Suitable for branch circuit distribution in residential or light commercial applications
This 100A main lug load center is designed for 1-phase, 120/240V AC outdoor installations. It features 6 spaces and supports up to 6 tandem breakers for branch-circuit distribution. The unit has a 10kA short-circuit current rating and includes a surface cover. Suitable for use as a subpanel where a main breaker is not required
SQUARE D
This 100A main lug load center is designed for 1-phase, 120/240V AC outdoor installations. It features 6 spaces and supports up to 6 tandem breakers for branch-circuit distribution. The unit has a 10kA short-circuit current rating and includes a surface cover. Suitable for use as a subpanel where a main breaker is not required
This 200A main lug load center is designed for 3-phase, 208Y/120/240V AC indoor installations. It provides 30 spaces for branch circuit breakers and has a 65kA short-circuit current rating. The enclosure cover must be ordered separately. No tandem breakers are permitted
SQUARE D
This 200A main lug load center is designed for 3-phase, 208Y/120/240V AC indoor installations. It provides 30 spaces for branch circuit breakers and has a 65kA short-circuit current rating. The enclosure cover must be ordered separately. No tandem breakers are permitted
This Square D QO main lug load center is rated 200 A at 208Y/120/240V AC, 3-phase, with a 65kA short-circuit current rating. It provides 30 spaces for branch circuits and includes a surface cover for outdoor installations. Suitable for commercial or industrial branch-circuit distribution where a separate upstream main breaker is used
SQUARE D
This Square D QO main lug load center is rated 200 A at 208Y/120/240V AC, 3-phase, with a 65kA short-circuit current rating. It provides 30 spaces for branch circuits and includes a surface cover for outdoor installations. Suitable for commercial or industrial branch-circuit distribution where a separate upstream main breaker is used