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Square D FAL340251212 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Unit Mount
Square D
FAL340251212
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL340251212
Quantity
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Square D FAL340251212 - 25A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial power systems, this 3-pole, 25A MCCB delivers robust thermal-magnetic protection. The legacy F-Frame design ensures consistent performance with long-time and instantaneous trip functions. This unit-mount breaker installs into Square D enclosures and switchboards. When upgrading, it is replaced by the BDL36025. Delivering an 18kAIC rating at 480V, it includes a factory-installed 1A/1B auxiliary switch and a Visi-Trip indicator for rapid fault identification.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL340251212-R |
| Series | FAL |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, Panelboards (Unit Mount) |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Auxiliary Switch (Factory Installed), Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
5 answersWhat types of panels accept the FAL340251212 circuit breaker?
This legacy F-Frame device is a unit-mount breaker. It is designed to be hard-mounted into traditional Square D enclosures, switchboards, and unit-mount panelboards, rather than plugging onto a busbar.
What is the direct replacement for the legacy FAL340251212?
For modern installations or upgrades, the Square D PowerPact B-Frame BDL36025 is the standard replacement for 25A, 3-pole F-Frame breakers. Note that any auxiliary or shunt trip accessories must be ordered separately for the new B-Frame unit.
What wire gauges are supported by the terminals on this breaker?
The included line and load lugs accommodate 14 to 4 AWG copper wire or 12 to 4 AWG aluminum wire, providing flexibility for standard 25A branch circuit or feeder connections.
Can the trip curve on the FAL340251212 be adjusted in the field?
No, this thermal-magnetic breaker utilizes fixed thermal (long-time) and fixed magnetic (instantaneous) trip elements. The trip thresholds are factory-set and cannot be modified.
Is this breaker rated for direct current (DC) applications?
Yes, in addition to its AC ratings, this breaker is rated for up to 250VDC with a 10kA interrupting capacity, making it suitable for specific industrial DC control or power circuits.
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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!