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Square D FAL14020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Unit Mount
Square D
FAL14020
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL14020
Quantity
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Square D FAL14020 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FAL14020 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL14020 |
| Series | FAL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| Wire Gauge | 14-4 AWG (Cu/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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| 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, Visual Trip Indicator |
Sold out
Quantity
Square D FAL14020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL14020-R |
| Series | FAL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| Wire Gauge | 14-4 AWG (Cu/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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| 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, Visual Trip Indicator |
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Description
Part of the legacy F-Frame series, the Square D FAL14020 is a 1-pole, 20A molded case circuit breaker. It delivers essential long-time and instantaneous (LI) protection for commercial and industrial applications. Featuring a unit mount design, this breaker installs into Square D switchboards and control panels via standard lug terminals. For modern upgrades, this specific model is officially replaced by the PowerPacT B-Frame BDL16020. The device provides an 18kAIC rating at 277VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL14020 |
| Series | FAL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 18kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| Wire Gauge | 14-4 AWG (Cu/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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| 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, Visual Trip Indicator |
Product FAQs
5 answersIs the Square D FAL14020 circuit breaker still manufactured?
No, the FAL14020 is an obsolete legacy F-Frame breaker. For modern panel upgrades, it has been officially replaced by the Square D PowerPacT B-Frame series, specifically the BDL16020.
What does the 480Y/277VAC voltage rating indicate for this breaker?
This slash voltage rating means the breaker is approved for use on solidly grounded wye systems where the line-to-neutral voltage does not exceed 277V. It is not rated for use on 480V ungrounded or delta electrical systems.
How does the FAL14020 mount inside an enclosure?
This is a unit-mount, feed-thru circuit breaker. It secures directly to a backpan or mounting plate using screws and connects to the circuit using the provided line and load lugs, rather than plugging onto a busbar.
Can I install the FAL14020 in a Square D I-Line panelboard?
No. The FAL14020 is a unit-mount breaker designed to be fastened to a backpan. It lacks the plug-on jaw connections required to mount onto I-Line busbars.
Does the FAL14020 provide GFCI or AFCI protection?
No. This is a standard thermal magnetic circuit breaker that provides only long-time overload and instantaneous short-circuit protection. It does not include ground-fault or arc-fault circuitry.
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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!