Are Square D QO breakers still in production?

Yes. Square D QO breakers are actively manufactured by Schneider Electric and widely stocked. Older discontinued frames can be sourced as surplus through BreakerQuote.

What is the difference between QO and Homeline?

QO breakers use plug-on connections and are rated for Square D QO load centers. Homeline is the value line designed for Square D Homeline panels. They are not interchangeable.

Can I source obsolete Square D I-Line breakers?

Yes. BreakerQuote connects you with surplus suppliers who carry discontinued Square D frames. Post your part number and receive competing quotes within minutes.

⚡ Schneider Electric

Square D Circuit Breakers

Square D circuit breakers by Schneider Electric — source QO, Homeline, I-Line and Powerpact breakers fast. Post an RFQ on BreakerQuote and get competing quotes from verified suppliers.

Post RFQ for Square D Parts →

BreakerQuote is an independent parts marketplace and is not an authorized distributor, dealer, or representative of Square D or Schneider Electric. All brand names, trademarks, and logos are the property of their respective owners.

Product Lines

Square D Breaker Series

BreakerQuote suppliers stock new, surplus, and reconditioned Square D breakers across all major product lines. Can't find your part number? Post an RFQ and let verified sellers compete for your business.

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QO Series

The most popular residential and light commercial breakers. Plug-in design, 15–200A.

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Homeline

Value-line residential breakers for Square D load centers. ANSI certified.

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I-Line

High-performance industrial panelboard breakers, 70–1200A.

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Powerpact B

Molded case circuit breakers, 15–125A, for distribution panels.

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Powerpact H/J/L

Heavy-duty MCCB series up to 1200A for industrial applications.

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EZpact / MasterPact

Air circuit breakers for switchgear, up to 6300A.

How It Works

Source Square D Parts in 3 Steps

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Post Your RFQ

Enter your Square D part number, quantity, and condition preference. It takes under 60 seconds.

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Receive Competing Quotes

Verified Square D suppliers respond with pricing. You stay anonymous — no spam, no cold calls.

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Award the Best Quote

Compare offers side by side, then award the deal to the supplier that fits your timeline and budget.

FAQ

Common Questions About Square D Circuit Breakers

Are Square D QO breakers still in production?
Yes. Square D QO breakers are actively manufactured by Schneider Electric and widely stocked. Older discontinued frames can be sourced as surplus through BreakerQuote.
What is the difference between QO and Homeline?
QO breakers use plug-on connections and are rated for Square D QO load centers. Homeline is the value line designed for Square D Homeline panels. They are not interchangeable.
Can I source obsolete Square D I-Line breakers?
Yes. BreakerQuote connects you with surplus suppliers who carry discontinued Square D frames. Post your part number and receive competing quotes within minutes.