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Square D FA26090BC Molded Case Circuit Breaker
- 90A
- 2 Pole
- I-Line
Square D
FA26090BC
Molded Case Circuit Breaker
Brand
Square D
SKU
FA26090BC
Quantity
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Square D FA26090BC - 90A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FA26090BC - 90A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA26090BC |
| Series | FA |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| 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 |
Sold out
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Square D FA26090BC - 90A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA26090BC-R |
| Series | FA |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| 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
Built for industrial power distribution, the FA26090BC is a 2-pole, 90A molded case circuit breaker with a B-C phase connection. It utilizes thermal-magnetic trip technology to safeguard electrical systems against overloads and short circuits. The breaker installs into Square D I-Line panelboards and switchboards. If a newer alternative is required, it crosses over to the PowerPact HDA260903. It features an 18 kAIC rating at 480VAC, HACR certification, and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA26090BC |
| Series | FA |
| Amperage | 90A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| 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
7 answersWhat is the modern replacement for the Square D FA26090BC?
The FA26090BC is a legacy F-frame breaker. Its direct modern equivalent is the Square D PowerPact H-frame HDA260904. The PowerPact replacement maintains the 90A rating, 2-pole configuration, and BC phase connection for I-Line panelboards.
What does the BC suffix indicate on this circuit breaker?
The BC designates the specific phase connection for the I-Line bus. This 2-pole breaker is factory-configured to connect to the B and C phases in your panelboard or switchboard.
How does the FA26090BC mount into the panel?
It utilizes an I-Line style plug-in connection, which allows the line side of the breaker to plug directly into the busbar of an I-Line panelboard. The load side features standard mechanical lugs for wire termination.
Can the FA26090BC be installed in standard residential load centers?
No. This is an industrial F-frame molded case circuit breaker with an I-Line plug-in mounting style. It is exclusively compatible with Square D I-Line panelboards and switchboards, and will not fit in QO or Homeline residential panels.
Is the FA26090BC suitable for direct current (DC) systems?
Yes. While commonly used in AC systems up to 600VAC, this thermal-magnetic breaker is also rated for 250VDC applications, providing a 10kA interrupting capacity for DC circuits.
Are the trip settings on the FA26090BC adjustable?
No. This breaker utilizes a fixed thermal and fixed magnetic trip unit. It delivers standard long-time and instantaneous (LI) overcurrent protection, but the trip thresholds cannot be adjusted in the field.
What wire sizes are compatible with the FA26090BC lugs?
The standard factory lugs accept 14 AWG to 1/0 AWG copper wire, or 12 AWG to 1/0 AWG aluminum wire. Always verify that your conductors are sized appropriately for the 90A rating and torque the lugs to the manufacturer specifications.
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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.