Skip to content
Shop Your Local Store Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted Authentic Brands

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 a 100A main breaker give you room to grow without oversizing your panel.
Square D MPN HOM2040M100PCVP In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $134.99. Our online price is $149.99.
$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 HomeLine load center gives you 20 spaces and room for up to 40 circuits, with a 100A main breaker built in to handle the whole panel. It's sized for a small home, a workshop, or any secondary panel where you need dedicated circuits without going overboard on amperage.

The combination mount design gives installers flexibility on rough-in, and because it's rated for 120/240V single-pole service, it covers standard residential branch circuits. Breakers are included in the box, so you're not sourcing them separately, and the whole unit is UL listed for code-compliant installs. Built for indoor use only, it's assembled in the USA and backed by Square D's HomeLine line, a standard in residential electrical work.

  • 100A main breaker capacity
  • 20 spaces, up to 40 circuits
  • 120/240V single-pole protection
  • Combination mount design
  • Breakers included, UL listed
  • Indoor use, made in USA

The Details Specifications

Brand Square D
UPC 785901977339
Case Pack Quantity 1 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 24 × 16 × 6
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 open the other tab. Everybody does. We'd rather say so than pretend otherwise — so open it. We'll wait.

When you're over there, check four things 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

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Square D

Or skip both tabs 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.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare