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Square D FA26050BC Molded Case Circuit Breaker
- 50A
- 2 Pole
- I-Line
Square D
FA26050BC
Molded Case Circuit Breaker
Brand
Square D
SKU
FA26050BC
Quantity
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Square D FA26050BC - 50A 2 Pole Molded Case Circuit Breaker
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Square D FA26050BC - 50A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA26050BC |
| Series | FA |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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 | Phase Connection B-C (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Square D FA26050BC - 50A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA26050BC-R |
| Series | FA |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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 | Phase Connection B-C (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Part of the legacy F-frame series, this 50-amp molded case circuit breaker delivers reliable thermal-magnetic protection for commercial and industrial facilities. It installs into Square D I-Line panelboards, utilizing a factory-configured B-C phase connection for precise load balancing. Rated for 25kAIC at 240VAC and 18kAIC at 480VAC, the unit includes the signature Visi-Trip indicator for rapid fault identification. This model is superseded by the PowerPacT H-frame HDA260504.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA26050BC |
| Series | FA |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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 | Phase Connection B-C (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
8 answersWhat type of panelboards accept the FA26050BC breaker?
This breaker is specifically designed for Square D I-Line panelboards and switchboards. It utilizes an I-Line style plug-in connection that mounts directly onto the panel's bus assembly.
What does the "BC" suffix mean in the FA26050BC catalog number?
In Square D I-Line nomenclature, the "BC" suffix indicates the specific phase connection. This 2-pole breaker is factory-configured to plug into the B and C phases of the I-Line bus.
How does the FA26050BC mount into the panelboard?
It uses an I-Line style plug-in connection. The breaker features plug-on jaws that connect directly to the panelboard bus on the line side, while the load side utilizes standard mechanical lugs for wire termination.
What wire sizes are accepted by the lugs on the FA26050BC?
The standard factory lugs on this F-Frame breaker accommodate 14 AWG to 1/0 AWG copper (Cu) conductors, or 12 AWG to 1/0 AWG aluminum (Al) conductors. Ensure proper torque specifications are followed during installation.
Can the FA26050BC be used in DC applications?
Yes, in addition to its AC ratings (up to 600VAC), this thermal-magnetic breaker is rated for 250VDC applications, providing a 10 kAIC interrupting capacity for direct current circuits.
Are the trip settings adjustable on the FA26050BC?
No, the FA26050BC features a non-interchangeable, fixed thermal-magnetic trip unit. Both the long-time (thermal) and instantaneous (magnetic) trip functions are factory-set and cannot be adjusted in the field.
What is the modern replacement for the legacy FA26050BC?
The FA series is a legacy F-Frame breaker. For modern installations or replacements in I-Line panelboards, Schneider Electric typically recommends the PowerPact B-Frame or H-Frame I-Line circuit breakers. Always verify that the replacement meets your required interrupting capacity and phase configuration.
What if my system requires a higher interrupting capacity than the FA26050BC provides?
The FA26050BC has a standard interrupting rating of 18 kAIC at 480V. If your application requires a higher short-circuit current rating, you may need to upgrade to a high-interrupting FH frame (25 kAIC at 480V) or an extra-high-interrupting FC frame (65 kAIC at 480V), or their modern PowerPact equivalents.
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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.