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SQUARE D Load Center: 60 A Amps, 208Y/120/240V AC, 3 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: 60 A Amps, 208Y/120/240V AC, 3 Spaces, 65kA, 0 Max. No. of Tandem Breakers

The Square D QO Main Lug Load Center (MPN QO403L60NS) is a 60 A, 3-phase, 3-space indoor unit rated 208Y/120/240V AC with a 65kA short-circuit current rating. It includes a surface cover and is configured as a main…

SKU 3G-OTH-609617

Brand
SQUARE D
Item
Load Center: 60 A Amps, 208Y/120/240V AC, 3 Spaces, 65kA, 0 Max. No. of Tandem Breakers
Category
Square D QO - Main Lug Load Centers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QO403L60NS
Type
65kA, Indoor
AC
208Y/120/240V
Phase
3
Spaces
3
Voltage
208Y/120/240V AC
Location
Indoor
Included Enclosure Cover
Surface Cover
Max. No. Of Tandem Breakers
0
Short Circuit Current Rating
65kA
Main Circuit Breaker or Main Lug
Main Lug
View Full Spec Sheet

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

Product Description

The Square D QO Main Lug Load Center (MPN QO403L60NS) is a 60 A, 3-phase, 3-space indoor unit rated 208Y/120/240V AC with a 65kA short-circuit current rating. It includes a surface cover and is configured as a main lug design with zero tandem breaker capacity.

Frequently Asked Questions

What is the Square D QO403L60NS load center used for?

The Square D QO403L60NS is a 60 A main lug load center used for distributing power in 3-phase, 208Y/120/240V AC indoor commercial or industrial applications. It provides 3 spaces for branch circuit breakers and is rated for 65kA short-circuit current, making it suitable for high-fault installations.

What are the specifications of the Square D QO403L60NS load center?

The Square D QO403L60NS is a 60 A, 3-phase, 3-space indoor main lug load center rated 208Y/120/240V AC with a 65kA short-circuit current rating. It includes a surface cover, supports zero tandem breakers, and is designed for indoor use. The MPN is QO403L60NS.

Where to buy the Square D QO403L60NS load center worldwide?

3G Electric supplies the Square D QO403L60NS 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 60 A, 3-phase indoor unit.

How to install a Square D main lug load center?

Install the Square D QO403L60NS load center on a flat indoor surface using the included surface cover. Connect incoming 3-phase 208Y/120/240V AC power to the main lugs. Ensure the enclosure is properly grounded and branch breakers are rated for 65kA SCCR. Follow NEC and local codes.

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.

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