Operating as a core component for industrial power distribution, the Square D FAL32040 is a 40A, 3-pole molded case circuit breaker. It offers fixed thermal and magnetic trip elements for standard LI protection. The breaker features a unit mount design with included lugs, making it suitable for Square D switchboards and control panels. As a legacy F-Frame device, it crosses over to the modern PowerPacT B-Frame BDL36040 for future replacements.
CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval
CSA, IEC, UL
Temp Rating
40C
Construction Features
HACR Rated, Visual Trip Indicator
Product FAQs
7 answers
What type of enclosures or panels is the FAL32040 compatible with?
The FAL32040 is a unit-mount, bolt-on F-frame breaker designed for use in legacy Square D enclosures, switchboards, and control panels. It is not compatible with I-Line panelboards, which require plug-on I-Line style breakers.
Is the Square D FAL32040 circuit breaker obsolete?
Yes, the Square D F-frame series is a legacy product line. For new installations or panel upgrades, Schneider Electric has replaced it with the modern PowerPact B-frame series. However, the FAL32040 remains available as a direct replacement for existing systems.
What lug kit is standard on the FAL32040?
This 40A F-frame breaker typically uses the AL100FA lug kit on both the line and load sides. These lugs accept 14 to 1/0 AWG copper wire or 12 to 1/0 AWG aluminum wire.
Can the FAL32040 be used in DC power applications?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, providing a maximum interrupting capacity of 5kAIC at that voltage.
What is the difference between the Square D FAL and FHL series breakers?
The FAL series provides a standard interrupting capacity, which is 10kAIC at 240VAC for this specific model. The FHL series is the high-interrupting equivalent designed for systems with greater available fault current. Both share the exact same physical F-frame dimensions and mounting footprint.
Does the FAL32040 mount onto a standard DIN rail?
No, the FAL32040 is a unit-mount breaker that bolts directly to the backpan of a control panel or enclosure. It is not designed for DIN rail mounting.
Are the thermal and magnetic trip points adjustable on the FAL32040?
No, this breaker features a fixed thermal-magnetic trip unit. Both the Long-Time overload protection and the Instantaneous short-circuit protection are factory set and cannot be adjusted in the field.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 39 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 39 reviews
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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.
Square D FAL3603015M - 30A 3 Pole Motor Circuit Protector
I recommend this product
Rated 5 out of 5 stars
9/15/26
Great 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.
MB
Michael B.
Verified Buyer
Reviewing
Square D FAL32030 - 30A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/13/26
Great product
This item worked as expected and is good quality. SuperBreakers did a great job with communication and delivery.
ZB
Zachary B.
Verified Buyer
Reviewing
Square D FAL36040 - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/23/26
Perfect
Exactly what we needed and worked flawlessly. Thanks
JR
John R.
Verified Buyer
Reviewing
Square D FAL36100 - 100A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/29/26
Circuit Breaker
The breaker was in "like new" condition and well packed for shipping. Excellent value overall!
RF
Ron F.
Verified Buyer
Reviewing
Square D FAL340801021 - 80A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
5/13/26
Square D FAL340801021 - 80A 3 Pole Molded Case Circuit Breaker
As usual SB has the best price and delivery was spot on!