Engineered for industrial distribution, the Square D FA22040BC is a 2-pole, 40A molded case circuit breaker. It provides reliable thermal-magnetic trip functions to safeguard commercial circuits. The F-Frame device installs into Square D I-Line panelboards via a Phase BC jaw connection. For system upgrades, this breaker is replaced by the HDA260403 model. Delivering a 10kAIC rating at 240VAC, it handles standard fault currents. It features a Visi-Trip indicator and is HACR rated.
What does the "BC" suffix mean in the FA22040BC catalog number?
The "BC" suffix indicates the specific phase connection for I-Line panelboards. This breaker is configured to connect to the B and C phases on the busbar.
Can I use the FA22040BC in a standard load center?
No. This is an I-Line plug-in circuit breaker designed exclusively for Square D I-Line panelboards and switchboards. It will not fit in standard QO or Homeline load centers.
Is the FA22040BC a current-limiting circuit breaker?
No. The FA series is a standard thermal-magnetic molded case circuit breaker. If your application requires current limitation, you will need to look at the PowerPact H or J frame series with the appropriate current-limiting ratings.
Can I adjust the trip settings on the FA22040BC?
No. This breaker features fixed thermal and fixed magnetic trip elements. Because the trip curve cannot be adjusted in the field, you must ensure the fixed settings meet your coordination requirements.
What is the modern replacement for the legacy FA22040BC?
The Square D FA series is a legacy F-frame breaker. The modern equivalent for I-Line panelboards is the PowerPact B-frame or H-frame series. When upgrading, ensure you select a replacement with the correct BC phase connection and interrupting capacity for your panel.
How do I reset the FA22040BC after it trips?
When the breaker trips, the handle moves to a center position between ON and OFF. To reset it, you must first push the handle completely to the OFF position to re-latch the mechanism, and then push it back to the ON position.
Can I use the FA22040BC on a 480V system?
No. The "22" in the catalog number indicates this is a 240V maximum rated breaker. For a 480V system, you would need a breaker with a "4" or "6" voltage code, such as an FA24040 or FA26040, or a modern PowerPact equivalent.
What does the "LI" trip function code mean?
The "LI" code indicates the breaker provides Long-Time (L) and Instantaneous (I) protection. Long-Time protects against sustained overloads, while Instantaneous protects against short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 71 reviews.
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Rated 5.0 out of 5 stars
Based on 71 reviews
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Reviews Summary
Generated by AI from 68 most recent customer reviews
Last updated 8/15/26
Customers say this circuit breaker matches its description, fits perfectly, and works as expected. Many reviews highlight fast shipping and quick delivery times, with several noting orders arrived within days. Users appreciate the product condition, describing refurbished units as appearing new without wear or marks. Common feedback addresses competitive pricing compared to local suppliers and the overall value proposition. Customers report straightforward ordering processes and reliable service, with repeat purchasers noting consistent positive experiences. The breaker installed easily and functioned properly in various applications.
Square D FA34090 - 90A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/30/26
Mill Superintendant
Works great!
We will definitely use SuperBreakers again.
Thank you!
Richard
CP
Casey P.
Verified Buyer
Reviewing
Square D FA34030 - 30A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
9/14/26
Great company
Ordered on a Saturday evening, paid for two day shipping and it arrived on time and in perfect condition. Would 100 percent be using this company going forward, beat out pricing and shipping times for all my local supply houses. Plus the staff were great to deal with.
AH
Ann H.
Verified Buyer
Reviewing
Square D FA36100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/22/26
Professional Service
So far, so good! The circuit breaker was installed along with a new compressor for our church AC, and everything is now working well.
The company has been professional, dependable, and reputable throughout the process. I had a question after the installation, and it was answered immediately. I also appreciated that they followed up and asked for feedback to make sure the new part was working properly and that we were satisfied with the service.
It’s refreshing to deal with a company that not only has quality products but also cares about its customers after the job is completed. I would definitely recommend them!
RE
rene e.
Verified Buyer
Reviewing
Square D FA34070 - 70A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/14/26
breaker
breaker was just as discribed
BE
Ballentine E.
Verified Buyer
Reviewing
Square D FA24060AC - 60A 2 Pole Molded Case Circuit Breaker