Square D QO-2L30S 2-Space 2-Ci...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$42.93
Square D QO-2L30S 2-Space 2-Circuit Main Lug Load Center, 120/240V

Square D QO-2L30S 2-Space 2-Circuit Main Lug Load Center, 120/240V

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Model: QO2L30S

In Stock (leaves warehouse same day if ordered before 3pm ET)

$42.93
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Square D QO-2L30S 2-Space 2-Circuit Main Lug Load Center, 120/240V

The Square D QO-2L30S 2-Space 2-Circuit Main Lug Load Center is engineered for residential 1 phase 3 wire electrical systems, accepting QO breakers, ground fault interrupters, arc fault interrupters, and surge arresters. Rated 120/240V AC with fixed main lugs and a NEMA 1 indoor enclosure, this compact load center delivers dependable branch-circuit protection for new construction and renovation projects. The welded sheet steel enclosure carries a baked enamel gray finish for corrosion resistance and a clean, professional job-site appearance.

Key Features

  • Configuration: 2 spaces and 2 circuits, 1 phase 3 wire, ideal for compact residential panel applications.
  • Durable Construction: Welded sheet steel enclosure with tin-plated aluminum busbar for long-term conductivity and corrosion resistance.
  • Fixed Main Lugs: Lug-style electrical connection with straight-in wiring that saves wire, labor, and time during installation.
  • Wire Range: Main lugs torque to 35 lb-in for AWG 14-AWG 10 copper and AWG 12-AWG 10 aluminum conductors.
  • Voltage Rating: 120/240V AC rated operational voltage (Ue) for standard residential service.
  • NEMA 1 Enclosure: Indoor degree-of-protection enclosure rated for ambient operation from -5°C to 40°C.
  • Finish: Baked enamel gray surface finish over the welded steel enclosure.

Certifications & Compliance

  • UL Listed
  • Toxic Heavy Metal Free
  • Mercury Free
  • RoHS Exemption Information: Yes
  • Suitable for Indoor (NEMA 1) Locations

Technical Specifications

  • Range Of Product: QO
  • Number Of Spaces: 2
  • Load Center Type: Fixed Mains (lugs)
  • Warranty Period: 18 months
  • Toxic Heavy Metal Free: Yes
  • Mercury Free: Yes
  • ROHS Exemption Information: Yes
  • ROHS Eur In Scope: Yes
  • China ROHS In Scope: No
  • WEEE Product Category: 5
  • Legacy WEEE Scope: In
  • Recycled Metal Content At Cr Level: 0%

Typical Applications

  • Residential Electrical Service Panels
  • Branch-Circuit Protection for Lighting and Receptacle Circuits
  • New Construction Electrical Installations
  • Panel Renovation and Upgrade Projects
  • Indoor Load Center Installations

Why Square D?

Square D QO load centers combine a welded steel enclosure, tin-plated aluminum busbar, and a baked enamel gray finish to deliver dependable, code-compliant power distribution. Backed by an 18-month warranty and UL Listing, this 2-space, 2-circuit main lug load center is built to accept the full range of QO breakers, GFCI, AFCI, and surge protection devices for a complete, reliable residential panel solution.

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Manufacturer Resources

Product Specs

Product Type:
Load Center
Series:
QO
Voltage Rating:
120/240V
Configuration:
Fixed Main Lugs, 2-Space
Product Finish:
Baked Enamel Gray
Listing:
UL Listed
Product Material:
Steel
Department:
Electrical
Product Group:
Power Distribution
Product Subgroup:
Panelboards & Load Centers

Square D QO2L30S – Frequently Asked Questions

1) Will the Square D QO-2L30S accept standard QO breakers, including GFCI and AFCI types?
Yes. The QO-2L30S 2-space load center is built around the QO bus and takes QO branch breakers, GFCI and AFCI breakers, and QO surge arresters. If your other panels in the building are QO, the breaker inventory carries straight over. It will not take Homeline or any other manufacturer's breaker.
2) What wire size do the main lugs on the QO-2L30S take, and what torque?
The fixed main lugs accept AWG 14 to AWG 10 copper or AWG 12 to AWG 10 aluminum, torqued to 35 lb-in. That is a small-conductor range, so this is a sub-panel or tap-fed branch enclosure, not a 100A service panel feed. If you are landing 2 AWG or larger service conductors, you need a larger load center.
3) Can I use the Square D QO 2-space load center outdoors or in a wet location?
No. It ships in a NEMA 1 enclosure, which is indoor-only, with a rated ambient range of -5 C to 40 C. For an exterior wall or a damp garage exterior you want a NEMA 3R enclosure instead, such as the Eaton CH 125A main lug loadcenter or the ABB PAM ReliaHome load center, both of which we list with NEMA 3R enclosures.
4) Does this load center come with a main breaker or do I need upstream overcurrent protection?
Main lug only. The QO-2L30S has fixed main lugs, no main breaker, so overcurrent protection has to come from the feeder breaker upstream in the panel or service equipment feeding it. Plan the feeder breaker sizing around the lug wire range of AWG 14 to AWG 10 copper.
5) What is the closest equivalent to the Square D QO-2L30S main lug load center from another brand?
The Eaton BRP24L125GW is the nearest match in intent: it is a main lug only loadcenter with an aluminum bus and a NEMA 1 enclosure, rated 125A. The QO-2L30S is also a fixed main lug design with a NEMA 1 indoor enclosure and a tin-plated aluminum busbar, rated 120/240V. The practical difference is the breaker family - the Square D unit accepts QO breakers, GFCI, AFCI and surge devices in that line, while the Eaton takes BR-series breakers, so existing spare breaker stock usually decides which one goes in.
6) The QO-2L30S is NEMA 1 indoor only - what main lug load center should I use outdoors?
Pick a rainproof enclosure instead. The Eaton CH2L is a 125A main lug loadcenter with a copper bus in a NEMA 3R enclosure, and the ABB PAM ReliaHome is a load center with a NEMA 3R aluminum enclosure and plug-on neutral. The Square D QO-2L30S carries a NEMA 1 indoor enclosure rated for ambient operation from -5 C to 40 C, so it belongs inside a building or inside a weatherproof outer enclosure.
7) What is the difference between the QO2L30S and the QO24L70F on the same Square D 2-space listing?
Both are QO main lug enclosures; they differ in ampere rating. Order QO2L30S for the 30A version and QO24L70F for the 70A version. Match the rating to the feeder breaker protecting the panel.
8) Is a 2-space Square D QO panel enough for a 240V circuit, or just 120V?
Rated 120/240V AC on a 1 phase 3 wire system, so the two spaces can take a single two-pole QO breaker for one 240V load (well pump, small heater, mini-split) or two single-pole 120V branch circuits. Two spaces, two circuits is the hard limit; there is no room to add later.
9) Is the Square D QO 2-space load center UL Listed for inspection sign-off?
Yes, it is UL Listed. The enclosure is welded sheet steel with a baked enamel gray finish and a tin-plated aluminum busbar.
10) I need a bigger main lug panel than the 2-space QO. What else is available?
For more circuits with a main lug feed, the Eaton BR main lug only loadcenter is a 125A aluminum bus unit in a NEMA 1 enclosure, and the Eaton CH 125A main lug loadcenter uses a copper bus in a NEMA 3R enclosure for outdoor mounting. Both take their own breaker lines, so you'd be switching breaker families away from QO.
11) I need a copper bus instead of aluminum - is there an alternative to the Square D QO load center?
Yes. The Eaton CH2L is a 125A main lug loadcenter built with a copper bus, in a NEMA 3R enclosure. The Square D QO-2L30S uses a tin-plated aluminum busbar in a welded sheet steel NEMA 1 enclosure. If a specification calls out copper bus, the CH unit meets that line item; note it is a different breaker family, so breakers are not interchangeable between the two.
12) Is the ABB ReliaHome PAM load center a drop-in replacement for a Square D QO-2L30S?
No. The ABB PAM ReliaHome is a load center with a NEMA 3R aluminum enclosure and a plug-on neutral bus, which is a different enclosure type and a different breaker interface than the Square D QO-2L30S, a fixed main lug unit in a welded steel NEMA 1 enclosure that accepts QO breakers. Swapping brands means changing the breakers as well as the can, so it is a panel replacement rather than a substitution on an existing installation.
13) My subpanel needs more than two circuits - what are my options besides the Square D QO-2L30S?
The QO-2L30S is a 2-space, 2-circuit fixed main lug unit intended for compact residential panel work, and it is also offered in a 70A version. For a larger branch-circuit count in the same main lug arrangement, the Eaton BRP24L125GW is a 125A main lug only loadcenter with an aluminum bus in a NEMA 1 enclosure, and the Eaton CH2L is a 125A main lug loadcenter with a copper bus in NEMA 3R. All three are main lug designs, so the feeder still needs upstream overcurrent protection.
14) Will the aluminum busbar in this Square D panel hold up in a humid utility room?
The busbar is tin-plated aluminum, and the steel enclosure carries a baked enamel gray finish for corrosion resistance. It is still a NEMA 1 indoor enclosure rated -5 C to 40 C, so condensing or wash-down conditions call for a NEMA 3R unit like the Eaton CH copper-bus loadcenter.
How fast can I get the Square D QO2L30S delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D QO2L30S come with a warranty?
Absolutely. The Square D QO2L30S is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D QO2L30S?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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