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Square D FA34015 Molded Case Circuit Breaker
- 15A
- 3 Pole
- I-Line
Square D
FA34015
Molded Case Circuit Breaker
Brand
Square D
SKU
FA34015
Quantity
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Square D FA34015 - 15A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FA34015 - 15A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA34015 |
| Series | FA |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Common Trip |
Quantity
Square D FA34015 - 15A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FA34015-R |
| Series | FA |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Common Trip |
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Description
Built for 480V industrial distribution, this 15A thermal-magnetic breaker offers fixed long-time and instantaneous trip functions. The device mounts into Square D I-Line panelboards and switchboards, providing secure phase connections without requiring separate fasteners. Delivering an 18kAIC interrupt rating at 480VAC, it includes a visual trip indicator for rapid fault identification. This legacy model transitions to the HDA36015.Specifications
| Brand | Square D |
|---|---|
| Part Number | FA34015 |
| Series | FA |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Common Trip |
Product FAQs
8 answersWhich enclosures and panelboards accept the FA34015?
This model is designed specifically for Square D I-Line panelboards and switchboards. It will not fit in standard QO load centers, NQ panels, or NF panelboards.
How does the line connection differ from standard bolt-on breakers?
Instead of bolting to the panel bus with discrete fasteners, it utilizes an I-Line plug-on line side. The breaker jaws press directly onto the I-Line bus stack for a secure, fast phase connection, while the load side uses traditional mechanical lugs.
Does this breaker require a separate mounting kit for I-Line installations?
No, the FA34015 is a dedicated I-Line breaker. The integrated line-side mounting jaws are built directly into the breaker housing, allowing it to attach securely to the panel bus without aftermarket adapter kits.
What is the magnetic pickup range for this 15A thermal-magnetic breaker?
The instantaneous magnetic trip is factory fixed. It is calibrated to trigger between 275 amps and 600 amps to clear rapid short-circuit faults.
Can I adjust the thermal or magnetic trip limits on this device?
No, it features standard Long-Time and Instantaneous (LI) protection with fixed thermal and magnetic limits. If your application requires adjustable settings, you must specify a breaker with a micrologic or adjustable electronic trip unit.
Which modern breaker replaces the obsolete FA34015?
Schneider Electric officially transitioned this legacy F-frame unit to the PowerPact B-frame series, specifically catalog number BDA36015. The PowerPact H-frame, such as catalog number HDA36015, is also a recognized upgrade path for existing I-Line panels.
Can I terminate aluminum conductors directly to the load lugs?
Yes, the factory load side lugs are dual-rated for both copper and aluminum wire. They accept 14 to 4 AWG copper or 12 to 4 AWG aluminum. Installers should apply a certified oxide inhibitor when terminating aluminum conductors.
Does this circuit breaker provide supplementary ground fault protection?
No, this unit delivers strictly thermal-magnetic overcurrent and short-circuit protection. It does not monitor for ground leakage currents and cannot serve as an Equipment Protection Device (EPD) or GFCI.
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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.