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SQUARE D Load Center: 200 A Amps, 208Y/120/240V AC, 18 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: 200 A Amps, 208Y/120/240V AC, 18 Spaces, 65kA, 0 Max. No. of Tandem Breakers

The Square D QO Main Lug Load Center (MPN QO318L200G) is a 200 A, 3-phase, 18-space indoor panel rated for 208Y/120/240V AC with a 65kA short-circuit current rating. As a main lug design, it requires a separate main…

SKU 3G-OTH-609672

Brand
SQUARE D
Item
Load Center: 200 A Amps, 208Y/120/240V AC, 18 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
QO318L200G
Type
65kA, Indoor
AC
208Y/120/240V
Phase
3
Spaces
18
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

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

Product Description

The Square D QO Main Lug Load Center (MPN QO318L200G) is a 200 A, 3-phase, 18-space indoor panel rated for 208Y/120/240V AC with a 65kA short-circuit current rating. As a main lug design, it requires a separate main breaker and its enclosure cover is ordered separately. This load center supports zero tandem breakers and is part of the Square D QO series.

Frequently Asked Questions

What is the Square D QO318L200G load center used for?

The Square D QO318L200G is a 200 A, 3-phase main lug load center for indoor 208Y/120/240V AC applications. It distributes power in commercial or industrial panels where a separate main breaker is installed upstream. It supports up to 18 circuits with zero tandem breakers.

What are the specifications of the Square D QO318L200G?

The Square D QO318L200G is rated 200 A, 208Y/120/240V AC, 3-phase, with a 65kA short-circuit current rating. It has 18 spaces, zero tandem breaker capacity, and is a main lug design for indoor use. The enclosure cover is ordered separately.

Where to buy the Square D QO318L200G load center worldwide?

3G Electric supplies the Square D QO318L200G 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 200 A, 3-phase indoor panel.

How to install a Square D main lug load center?

Install the Square D QO318L200G in a dry indoor location on a sturdy surface. Connect the feeder conductors to the main lugs, ensuring the upstream main breaker is off. Follow NEC guidelines for wire sizing and torque values. The cover must be ordered separately and installed after wiring.

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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Load Center: 125 A Amps, 208Y/120/240V AC, 20 Spaces, 65kA, 0 Max. No. of Tandem Breakers, Indoor (MPN QO320L125G). 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.
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