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Square D FA14050C Molded Case Circuit Breaker
- 50A
- 1 Pole
- I-Line
Square D
FA14050C
Molded Case Circuit Breaker
Brand
Square D
SKU
FA14050C
Quantity
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Square D FA14050C - 50A 1 Pole Molded Case Circuit Breaker
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Description
Designed to handle 50-amp loads, this thermal-magnetic MCCB delivers robust long-time and instantaneous trip functions for commercial facilities. The breaker mounts into Square D I-Line panelboards using a dedicated phase C connection. It features a 25kAIC interrupting capacity at 120VAC alongside a highly visible Visi-Trip indicator for quick troubleshooting. Facilities looking to modernize can substitute this legacy component with the PowerPacT BDA140505.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA14050C |
| Series | FA |
| Amperage | 50A |
| 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 |
| 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 C |
| 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 |
Product FAQs
4 answersWhat panelboards are compatible with the FA14050C circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit standard QO, NQ, or NQOD panels.
What does the "C" suffix in the FA14050C catalog number indicate?
The "C" suffix specifies that this 1-pole breaker is configured for a Phase C connection on the I-Line bus.
Can I use the FA14050C on Phase A or Phase B of my panel?
No. The FA14050C is specifically built with a Phase C jaw connection. For Phase A or Phase B installations, you must use the FA14050A or FA14050B respectively.
What is the modern replacement for the legacy FA14050C?
The legacy FA frame has been superseded by the PowerPacT B-Frame series. The direct replacement for this 50A, Phase C breaker is the Schneider Electric PowerPacT BDA140505.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 70 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
70 reviews
- 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.
- EBEdward B.Verified BuyerReviewingSquare D FA32100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/1/26As good as new
The Square D FA32100 circuit breaker (refurbished) was as good as a new breaker, without exception. There was no wear and tear or any marks at all. It was basically new. It is an excellent choice and a great product without having to pay the cost of a new breaker.