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Square D FA24035AC Molded Case Circuit Breaker
- 35A
- 2 Pole
- I-Line
Square D
FA24035AC
Molded Case Circuit Breaker
Brand
Square D
SKU
FA24035AC
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Square D FA24035AC - 35A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial applications, the Square D FA24035AC is a 2-pole, 35A molded case circuit breaker from the legacy F-Frame family. It delivers reliable thermal-magnetic protection with fixed long-time and instantaneous (LI) trip functions. This unit installs into Square D I-Line panelboards and features a specific AC phase connection. It serves as an exact replacement for older systems, though it is superseded by the HDA260352.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA24035AC |
| Series | FA |
| Amperage | 35A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 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 |
|---|---|
| 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 |
Product FAQs
7 answersWhat type of panelboard accepts the FA24035AC circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards. It utilizes a blow-on plug-on connector design that grips the I-Line bus tightly during short circuits. It will not fit standard load centers like QO or Homeline.
What does the "AC" suffix indicate on the FA24035AC catalog number?
The "AC" suffix specifies the phase connection for the I-Line bus. It dictates that the breaker's factory-set plug-in jaws will connect to the A and C phases of the panelboard.
Can I use this 2-pole breaker in a 3-phase I-Line panel?
Yes, this 2-pole breaker can be installed in a 3-phase I-Line panelboard. The "AC" suffix ensures it will draw power specifically from the A and C phases of the bus system.
Is the FA24035AC a current production breaker?
The FA series is a legacy F-Frame molded case circuit breaker. While it is often sourced to maintain existing I-Line panelboards without retrofitting, it has been superseded by the newer Square D PowerPact H-Frame series, specifically the HDA260352 for this configuration.
Can the FA24035AC be utilized in DC power applications?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is rated for DC systems. It provides an interrupting capacity of 10kA at 250VDC.
What wire sizes are compatible with the terminals on the FA24035AC?
The breaker comes with factory-installed mechanical lugs that accept either copper or aluminum conductors (Cu/Al) ranging from 14 AWG up to 1/0 AWG.
Can the thermal or magnetic trip points be adjusted in the field?
No, the FA24035AC features fixed thermal (long-time) and fixed magnetic (instantaneous) trip elements. These are factory-calibrated for a 40C ambient temperature and cannot be modified by the user.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 72 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
72 reviews
- DIDenso I.Verified BuyerReviewingSquare D FA36015 - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/29/26Breaker
Very professional and knowledgeable representatives. Above all expectations
- 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