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SQUARE D Load Center: 100 A Amps, 120/240V AC, 20 Spaces, 22 kA, 4 Max. No. of Tandem Breakers - Square D QO - Main Breaker, Convertible, Plug-On Neutral Load Centers
SQUARE DSquare D QO - Main Breaker, Convertible, Plug-On Neutral Load Centers

SQUARE D Load Center: 100 A Amps, 120/240V AC, 20 Spaces, 22 kA, 4 Max. No. of Tandem Breakers

The Square D QO120M100P is a 100 A, 1-phase, 120/240V AC main breaker load center with 20 spaces and a 22 kA short-circuit current rating. Designed for indoor use, this convertible, plug-on neutral unit supports up…

SKU 3G-OTH-721864

Brand
SQUARE D
Item
Load Center: 100 A Amps, 120/240V AC, 20 Spaces, 22 kA, 4 Max. No. of Tandem Breakers
Category
Square D QO - Main Breaker, Convertible, Plug-On Neutral Load Centers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QO120M100P
Type
22 kA, Indoor
AC
120/240V
Phase
1
Spaces
20
Voltage
120/240V AC
Location
Indoor
Included Enclosure Cover
Order Separately
Max. No. Of Tandem Breakers
4
Short Circuit Current Rating
22 kA
Main Circuit Breaker or Main Lug
Main Circuit Breaker
View Full Spec Sheet

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

Product Description

The Square D QO120M100P is a 100 A, 1-phase, 120/240V AC main breaker load center with 20 spaces and a 22 kA short-circuit current rating. Designed for indoor use, this convertible, plug-on neutral unit supports up to 4 tandem breakers; enclosure cover is ordered separately.

Frequently Asked Questions

What is the Square D QO120M100P load center used for?

The Square D QO120M100P is a 100 A main breaker load center for residential and light commercial electrical distribution. It provides overcurrent protection and branch circuit control in indoor 120/240V AC single-phase systems, supporting up to 20 circuits with a 22 kA short-circuit rating.

What are the specifications of the Square D QO120M100P load center?

This Square D QO load center is rated 100 A, 120/240V AC, 1-phase, with 20 spaces and a 22 kA short-circuit current rating. It is indoor-rated, convertible, plug-on neutral, and supports up to 4 tandem breakers. The enclosure cover is ordered separately.

Where to buy the Square D QO120M100P load center worldwide?

3G Electric supplies the Square D QO120M100P 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 genuine Square D part.

How to install the Square D QO120M100P load center?

Installation must follow the National Electrical Code and local regulations. Mount the load center on a wall stud, connect the main breaker to the service feed, and route branch circuits to the plug-on neutral bus. Always de-energize the panel before work and use a licensed electrician.

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 breaker, 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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