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

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

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A 100A main breaker and 20 spaces give you real room to grow, in one boxed kit ready to install.
Square D MPN HOM2040M100PQCV In Stock & Ready to Ship
$149.99
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 HOM2040M100PQCV load center is built around a 100 amp main breaker, giving you a full panel upgrade or new circuit install in one boxed kit rather than a bare enclosure you have to source parts for. With 20 spaces and room for up to 40 circuits, it has the capacity for a full home rewire, a workshop, or an addition where you need headroom for future breakers.

It's a combination mount design, so it works whether you're doing surface or flush mounting, and it carries a 120/240V rating that covers standard residential service. Breakers are included, and the unit is UL Listed for indoor use. Made in the USA, it's the kind of panel an electrician reaches for when the job calls for a dependable main breaker setup rather than a stripped-down box.

  • 100 amp main breaker included
  • 20 spaces, up to 40 circuits
  • Combination mount (surface or flush)
  • 120/240V rating
  • UL Listed for indoor installation
  • Made in USA

The Details Specifications

Brand Square D
Model / MPN HOM2040M100PQCV
UPC 785901639343
Weight 22 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.

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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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