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

3G Electric
RFQ CartGet a QuoteSign inSign up
SQUARE D Load Center: 100 A Amps, 120/240V AC, 8 Spaces, 10kA, 8 Max. No. of Tandem Breakers - Square D QO - Main Lug Load Centers
SQUARE DSquare D QO - Main Lug Load Centers

SQUARE D Load Center: 100 A Amps, 120/240V AC, 8 Spaces, 10kA, 8 Max. No. of Tandem Breakers

The Square D QO816L100DS is a 100 A main lug load center for indoor use, rated 120/240V AC with a 10kA short-circuit current rating. It offers 8 spaces and supports up to 8 tandem breakers in a 1-phase configuration…

SKU 3G-OTH-609653

Brand
SQUARE D
Item
Load Center: 100 A Amps, 120/240V AC, 8 Spaces, 10kA, 8 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
QO816L100DS
Type
10kA, Surface Cover
AC
120/240V
Phase
1
Spaces
8
Voltage
120/240V AC
Location
Indoor
Included Enclosure Cover
Surface Cover
Max. No. Of Tandem Breakers
8
Short Circuit Current Rating
10kA
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 QO816L100DS is a 100 A main lug load center for indoor use, rated 120/240V AC with a 10kA short-circuit current rating. It offers 8 spaces and supports up to 8 tandem breakers in a 1-phase configuration, supplied with a surface cover.

Frequently Asked Questions

What is the Square D QO816L100DS load center used for?

The Square D QO816L100DS is a 100 A main lug load center used to distribute power in residential or light commercial indoor electrical panels. It accepts QO circuit breakers and supports up to 8 tandem breakers for branch circuit protection in a 120/240V AC, 1-phase system.

What are the specifications of the Square D QO816L100DS?

The Square D QO816L100DS is a 100 A, 120/240V AC, 1-phase main lug load center with a 10kA short-circuit current rating. It has 8 spaces, supports up to 8 tandem breakers, includes a surface cover, and is rated for indoor use only.

Where to buy the Square D QO816L100DS worldwide?

3G Electric supplies the Square D QO816L100DS 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 Square D part.

How to install a Square D main lug load center?

Install the Square D QO816L100DS load center on a flat indoor surface using the surface cover. Connect the incoming feeder wires to the main lugs, then snap QO breakers into the bus bars. Follow local electrical codes and the manufacturer's wiring diagram for safe, compliant installation.

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: 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: 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.
SQUARE D
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.
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.