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Square D FAL32045 Molded Case Circuit Breaker
- 45A
- 3 Pole
- Unit Mount
Square D
FAL32045
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL32045
Quantity
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Square D FAL32045 - 45A 3 Pole Molded Case Circuit Breaker
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Square D FAL32045 - 45A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | FAL32045 |
| Series | FAL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, 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 | Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Quantity
Square D FAL32045 - 45A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | FAL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, 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 | Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
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Description
Engineered for commercial and industrial applications, this 45A molded case circuit breaker provides reliable long-time and instantaneous (LI) protection. The unit mount design features lugs on both ends for installation into Square D enclosures, switchboards, and control panels. While this F-Frame model is a legacy component, it serves as an exact replacement for older systems before upgrading to the modern PowerPacT B-Frame (BDL36045). It includes the Visi-Trip indicator for fast diagnostics.Specifications
| Brand | Square D |
|---|---|
| Series | FAL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, 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 | Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
8 answersWhat is the difference between the FAL32045 and the FA32045?
The FAL32045 is a unit-mount (feed-thru) circuit breaker with lugs on both the line and load sides. The FA32045 is an I-Line plug-on breaker designed specifically for Square D I-Line panelboards and switchboards. They are not interchangeable.
What enclosures and panels are compatible with the FAL32045?
The FAL32045 is designed for installation in Square D enclosures, switchboards, and control panels that accept unit-mount F-Frame breakers. It does not plug onto I-Line busways.
Is the Square D FAL32045 still manufactured?
The FAL32045 is a legacy F-Frame circuit breaker and is no longer actively manufactured by Schneider Electric. For new installations or upgrades, the modern equivalent is the PowerPact B-Frame series, though the FAL32045 remains available as an exact replacement for existing systems.
Do the factory lugs on the FAL32045 accept aluminum wiring?
Yes, the standard lugs are dual-rated for both copper and aluminum conductors, accepting wire sizes from 14 AWG to 1/0 AWG.
How does the FAL32045 mount into a panel?
This is a unit-mount, feed-thru circuit breaker. It secures via mounting screws and features lugs on both the line and load sides for direct wire connections, rather than plugging into a busbar.
What type of trip protection does the FAL32045 provide?
It utilizes fixed thermal-magnetic trip technology, providing both long-time (thermal) protection against overloads and instantaneous (magnetic) protection against short circuits.
Can the FAL32045 be used on a 480V system?
No, the FAL32045 is strictly rated for a maximum of 240VAC or 250VDC. For 480V applications, a different breaker such as the FAL34045 would be required.
What if my system requires a higher interrupting capacity than 10kAIC?
The FAL32045 has a standard interrupting capacity of 10kA at 240VAC. If your system fault current exceeds this, you will need a high-interrupting F-Frame breaker, such as the FHL series, which offers higher AIC ratings in the same physical footprint.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 39 reviews.
Reviews Summary
Generated by AI from 39 most recent customer reviews
Last updated 9/25/26
Customers say this circuit breaker arrives in excellent condition and works as expected. The product performs flawlessly and functions reliably. Many reviews highlight fast shipping, competitive pricing, and quick delivery times. Users appreciate the availability of refurbished and obsolete models. The parts arrive well-packed and in like-new condition. Common feedback addresses excellent communication and straightforward ordering. Overall, customers report satisfaction with product quality, value, and prompt service fulfillment.
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Rating
39 reviews
- PCPierre C.Verified BuyerReviewingSquare D FAL3603015M - 30A 3 Pole Motor Circuit ProtectorI recommend this productRated 5 out of 5 stars9/15/26Great service!!!
Bought this to replace the faulty one. Shipped overnight and arrived at noon as promised. Works as new. Very happy with this. Awesome help from the staff. Definitely my go to place now.
Thank you.
- MBMichael B.Verified BuyerReviewingSquare D FAL32030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/13/26Great product
This item worked as expected and is good quality. SuperBreakers did a great job with communication and delivery.
- ZBZachary B.Verified BuyerReviewingSquare D FAL36040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/23/26Perfect
Exactly what we needed and worked flawlessly. Thanks
- JRJohn R.Verified BuyerReviewingSquare D FAL36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/29/26Circuit Breaker
The breaker was in "like new" condition and well packed for shipping. Excellent value overall!
- RFRon F.Verified BuyerReviewingSquare D FAL340801021 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/13/26Square D FAL340801021 - 80A 3 Pole Molded Case Circuit Breaker
As usual SB has the best price and delivery was spot on!