Square D QO Convertible Main Lugs Load Center, Plug-On Neutral, NEMA 1
The Square D QO Convertible Main Lugs Load Center is a 1 phase residential and light industrial load center built to accept QO breakers, ground fault interrupters, arc fault interrupters, and surge arresters. This convertible (Type A) main lug load center is available in ratings from 100A to 125A, giving electricians and homeowners the flexibility to select the amperage that matches the application while sharing the same 12-space, 12-circuit configuration, plug-on neutral (PoN) design, and NEMA 1 indoor enclosure rating across the range. A grounding bar is provided and the unit carries a UL Listed certification for code-compliant residential electrical distribution.
Key Features
- Amperage Options: Offered in 100A and 125A ratings, allowing the panel to be matched to the connected load and service requirements.
- Configuration: 1 phase load center with 12 spaces and 12 circuits for flexible branch circuit distribution.
- Convertible Main Lugs: Type A convertible main lugs allow the panel to be upgraded to a main breaker configuration as needs change.
- Plug-On Neutral (PoN): Straight-in wiring design saves wire, labor, and time during installation.
- Enclosure: NEMA 1 indoor enclosure rated for protected indoor electrical installations.
- Grounding Bar Included: Factory-installed grounding bar simplifies grounding connections.
- Terminations: Design provides up to 50% more terminations for clutter-free wiring.
- Durability: Engineered for superior performance and durability in residential and industrial electrical systems.
- Breaker Compatibility: Accepts QO breakers, ground fault interrupters, arc fault interrupters, and surge arresters.
Certifications & Compliance
- UL Listed
- NEMA 1 Indoor Enclosure Rating
Technical Specifications
- Range Of Product: QO
- Number Of Spaces: 12
- Number Of Circuits: 24
- Number Of Tandem Circuit Breakers: 12
- Amperage Options: 100A, 125A
- Toxic Heavy Metal Free: Yes
- Mercury Free: Yes
- China ROHS Label: 1
- ROHS Exemption Information: Yes
- ROHS Eur In Scope: Yes
- Legacy WEEE Scope: In
- WEEE Product Category: 4
- Returnability: Yes
Typical Applications
- Residential Electrical Panel Installations
- Load Center Replacements and Upgrades
- New Construction Circuit Wiring
- QO Breaker, GFCI, AFCI, and Surge Arrester Installation
- Indoor Panel Installations Requiring NEMA 1 Protection
Why Square D?
Square D QO load centers pair a UL Listed, NEMA 1 rated enclosure with convertible main lugs and a plug-on neutral design, giving electricians and homeowners a flexible, code-compliant foundation for residential power distribution across the 100A to 125A range. With a factory-installed grounding bar and broad compatibility with QO breakers, GFCIs, AFCIs, and surge arresters, this load center delivers the reliability and durability professionals expect from Square D.
Manufacturer Resources
Product Specs
- Product Type:
- Load Center
- Series:
- QO
- Configuration:
- NEMA 1 Enclosure
- Listing:
- UL Listed
- Department:
- Electrical
- Product Group:
- Power Distribution
- Connection Type:
- Plug-On Neutral
- Amperage Rating:
- 100A - 125A
- Product Subgroup:
- Panelboards & Load Centers