Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D FAL36045 Molded Case Circuit Breaker
- 45A
- 3 Pole
- Unit Mount
Square D
FAL36045
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL36045
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D FAL36045 - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
Sold out
Quantity
Square D FAL36045 - 45A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL36045-R |
| Series | FAL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL100FA) |
| 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 |
Quantity
Square D FAL36045 - 45A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL36045-R |
| Series | FAL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL100FA) |
| 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 |
Similar Items
50A 3 Pole Molded Case Circuit Breaker
40A 3 Pole Molded Case Circuit Breaker
40A 3 Pole Molded Case Circuit Breaker
Description
Engineered for industrial applications, the Square D FAL36045 is a 3-pole, 45A molded case circuit breaker from the proven F-Frame series. It provides dependable protection for systems up to 600VAC. This unit-mount breaker features a lug-to-lug configuration for standalone enclosures and control panels. For modern upgrades, it crosses over to the newer PowerPact HGL36045. Equipped with a fixed thermal-magnetic trip unit, it delivers 18 kAIC at 480VAC and includes a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL36045-R |
| Series | FAL |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL100FA) |
| 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
7 answersWhat types of enclosures and panels are compatible with the FAL36045?
This unit mount circuit breaker is designed for use in compatible Square D enclosures, switchboards, and industrial control panels that accept legacy F-frame breakers. It is not compatible with I-Line panelboards.
What is the modern replacement for the legacy Square D FAL36045?
The FAL36045 is part of the obsolete F-frame series. For modern upgrades, it is typically replaced by the Square D PowerPacT B-frame (such as the BDL36045) or H-frame (such as the HDL36045) circuit breakers. Verify mounting dimensions before upgrading.
Can the FAL36045 be used in DC power applications?
Yes, this thermal magnetic breaker is rated for up to 250VDC with a DC interrupting capacity of 10kA. This makes it suitable for specific direct current control panel and switchboard applications.
What wire sizes do the factory lugs on the FAL36045 accept?
The standard lugs accommodate 14 AWG to 1/0 AWG copper wire, or 12 AWG to 1/0 AWG aluminum wire. Ensure proper torque specifications are followed during installation.
Is the FAL36045 rated for 100 percent continuous duty?
No, this is a standard 80 percent rated circuit breaker. Continuous loads should not exceed 80 percent of its 45A rating, which is 36 amps, in accordance with standard electrical codes.
Is this a plug-on or bolt-on circuit breaker?
The FAL36045 is a unit mount, feed-thru circuit breaker. It mounts directly to a backpan or mounting surface and uses wire lugs for both line and load connections, rather than plugging onto a busbar.
What type of trip unit does the FAL36045 feature?
It features a fixed thermal magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal element provides inverse-time overload protection, while the magnetic element protects against sudden short circuits.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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.
Search
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!