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Square D FA14090C Molded Case Circuit Breaker
- 90A
- 1 Pole
- I-Line
Square D
FA14090C
Molded Case Circuit Breaker
Brand
Square D
SKU
FA14090C
Quantity
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Square D FA14090C - 90A 1 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty commercial environments, this 90A F-Frame breaker provides essential long-time and instantaneous trip functions. The device installs into Square D I-Line panelboards utilizing a specific Phase C connection. For future upgrades, this legacy component is officially replaced by the modern PowerPacT BDA140903 model. Rated for 18kAIC at 277VAC, the unit includes HACR certification. A built-in Visi-Trip indicator allows personnel to quickly spot tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA14090C |
| Series | FA |
| Amperage | 90A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 120VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 120VAC, 18kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| 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 | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
8 answersWhat does the C suffix indicate on the FA14090C catalog number?
The C suffix specifies that this 1-pole breaker is factory-configured for a Phase C connection on the I-Line bus. It will only draw power from the C phase of the panelboard.
Will the FA14090C fit in a standard Square D NQ or NF panelboard?
No, this breaker features an I-Line style plug-in connection. It is exclusively compatible with Square D I-Line panelboards and switchboards, and cannot be installed in NQ, NF, or QO load centers.
Is this breaker suitable for direct current (DC) power systems?
Yes, in addition to its AC ratings, the FA14090C is rated for DC applications up to 125VDC, providing a 10kA interrupting capacity for DC circuits.
Is the Square D FA frame series still manufactured, or has it been replaced?
The FA series is a legacy F-Frame breaker. While exact replacements like the FA14090C remain available for existing I-Line panels, Schneider Electric has introduced the PowerPact B-Frame and H-Frame series as the modern equivalents for new installations and upgrades.
Can the thermal or magnetic trip points be adjusted in the field?
No, the FA14090C features fixed thermal and fixed magnetic trip elements. The long-time and instantaneous protection settings are factory-calibrated and cannot be modified.
Does this breaker include a Visi-Trip indicator?
Yes, Square D FA frame breakers feature a Visi-Trip indicator. When the breaker trips due to an overload or short circuit, the handle snaps to a center position and a highly visible red indicator appears, allowing personnel to quickly identify the faulted circuit.
What does the LI trip function code mean for this breaker?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) protection against mild, sustained overloads and Instantaneous (I) protection against severe short circuits.
Is the FA14090C HACR rated for HVAC applications?
Yes, this breaker carries an HACR certification, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires specialized circuit protection.
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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.