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Square D FA22040AC Molded Case Circuit Breaker
- 40A
- 2 Pole
- I-Line
Square D
FA22040AC
Molded Case Circuit Breaker
Brand
Square D
SKU
FA22040AC
Quantity
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Square D FA22040AC - 40A 2 Pole Molded Case Circuit Breaker
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Square D FA22040AC - 40A 2 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | FA22040AC |
| Series | FA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Phase Connection AC |
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Square D FA22040AC - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA22040AC-R |
| Series | FA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Phase Connection AC |
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Description
Designed for commercial applications, the Square D FA22040AC is a legacy F-frame molded case circuit breaker. It delivers reliable overcurrent protection with a 40A rating and a 10kAIC interrupting capacity at 240VAC. Engineered for Square D I-Line panelboards, this unit features an AC phase connection and plug-on mounting. As a legacy component for existing systems, it is officially replaced by the BDA240402 model. The breaker includes a Visi-Trip indicator and is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA22040AC-R |
| Series | FA |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Phase Connection AC |
Product FAQs
6 answersWhat does the "AC" suffix in the FA22040AC catalog number indicate?
The "AC" suffix specifies the breaker's phase connection. It is factory-configured with plug-on jaws designed to connect specifically to the A and C phases of a Square D I-Line panelboard bus.
What is the modern replacement for the legacy FA22040AC breaker?
The Square D FA series is a legacy F-frame breaker. For modern upgrades or direct replacements, Schneider Electric has superseded this unit with the PowerPact B-frame series, specifically model BDA240402.
How is the FA22040AC installed into a panelboard?
This breaker utilizes an I-Line plug-on line connection. The factory-set jaws ratchet firmly onto the panelboard bus stack using a screwdriver, which provides a secure connection without requiring line-side wiring. The load side is then wired using the included mechanical lugs.
Can this breaker be used in direct current (DC) systems?
Yes, in addition to its standard AC ratings, this thermal-magnetic breaker is certified for DC applications. It provides a 10kA interrupting capacity at 250VDC.
Is the FA22040AC suitable for protecting HVAC equipment?
Yes, this breaker is HACR rated, making it fully certified to provide overcurrent protection for heating, air conditioning, and refrigeration motor loads.
How can I safely verify the mechanical trip mechanism on this breaker?
The FA22040AC includes a built-in push-to-trip button. Pressing this button manually exercises the mechanical linkage and trips the breaker, moving the handle to the center position to verify proper operation before or after installation.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 71 reviews.
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.
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Rating
71 reviews
- RLRichard L.Verified BuyerReviewingSquare D FA34090 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/30/26Mill Superintendant
Works great!
We will definitely use SuperBreakers again.
Thank you!
Richard
- CPCasey P.Verified BuyerReviewingSquare D FA34030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Great 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.
- AHAnn H.Verified BuyerReviewingSquare D FA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/22/26Professional 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!
- RErene e.Verified BuyerReviewingSquare D FA34070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/14/26breaker
breaker was just as discribed
- BEBallentine E.Verified BuyerReviewingSquare D FA24060AC - 60A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/15/26Great
Accurate and on time.