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Square D HomeLine 100 amps 120/240 V 20 space 40 circuits Combination Mount Main Breaker Load Center
Square D HomeLine 100 amps 120/240 V 20 space 40 circuits Combination Mount Main Breaker Load Center
Square D HomeLine 100 amps 120/240 V 20 space 40 circuits Combination Mount Main Breaker Load Center
Square D HomeLine 100 amps 120/240 V 20 space 40 circuits Combination Mount Main Breaker Load Center

Square D HomeLine 100 amps 120/240 V 20 space 40 circuits Combination Mount Main Breaker Load Center

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

20 spaces and 100A capacity give you room to handle a full house of circuits without crowding the panel.
Square D MPN HOM2040M100PC In Stock & Ready to Ship
$129.99
Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

About Product Overview

This Square D HomeLine load center is a 100-amp main breaker panel built for residential service work, whether you're replacing an aging panel or wiring a new circuit setup. With 20 spaces and room for up to 40 circuits, it gives you enough capacity to run a full house's worth of branch circuits without crowding the box.

It's rated for 120/240V service and uses a combination mount, so it fits standard installation setups electricians already know. Breakers are sold separately, letting you pick single-pole breakers to match the exact circuit count and load requirements of the job. UL listing means it meets recognized safety standards for indoor electrical installations. Built in the USA, it's a straightforward, no-frills panel suited for main service upgrades, new construction, or panel replacements where reliability matters more than extras.

  • 100-amp main breaker rating
  • 20 spaces, up to 40 circuits
  • 120/240V single-pole circuit protection
  • Combination mount installation
  • UL Listed for indoor use
  • Breakers not included - sold separately

The Details Specifications

Brand Square D
Model / MPN HOM2040M100PC
UPC 785901977377
Weight 21 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Square D. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Square D

Or skip the tabs entirely and buy it down the street. Find a store near you →

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
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Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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