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Square D FAL12020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Unit Mount
Square D
FAL12020
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL12020
Quantity
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Square D FAL12020 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FAL12020 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL12020 |
| Series | FAL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| 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 (AL50FA) |
| 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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Quantity
Square D FAL12020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL12020-R |
| Series | FAL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| 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 (AL50FA) |
| 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
A drop-in replacement for older Square D systems, the FAL12020 is a 1-pole, 20A legacy MCCB. It provides essential thermal-magnetic protection for commercial and industrial power distribution networks. This F-Frame breaker mounts into standard enclosures and control panels, serving as the predecessor to the current PowerPact B-Frame (BDL16020) series. Operating at 120VAC with a 10kA interrupting capacity, it includes HACR certification and a Visi-Trip indicator for simplified maintenance.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL12020 |
| Series | FAL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| 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 (AL50FA) |
| 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
8 answersWhat equipment is the FAL12020 circuit breaker compatible with?
The FAL12020 is designed for use in Square D enclosures, industrial control panels, and switchboards that accept legacy F-Frame unit-mount breakers.
Is the Square D FAL12020 still in active production?
The FAL series is a legacy F-Frame molded case circuit breaker. While exact FAL12020 units are often sourced as surplus, Schneider Electric designates the modern PowerPact B-Frame series as the direct replacement for F-Frame applications.
How is the FAL12020 installed in a panel?
This is a unit-mount, feed-thru circuit breaker. It does not plug onto a busbar. Instead, it mounts directly to the enclosure backpan and uses line and load side lug terminals to secure the incoming and outgoing conductors.
Is the FAL12020 rated for use with aluminum wiring?
Yes, the standard lugs on this breaker are dual-rated for both copper (Cu) and aluminum (Al) conductors, accepting wire gauges from 14 AWG up to 4 AWG.
What type of fault protection does the FAL12020 provide?
It features thermal-magnetic trip technology with fixed long-time and instantaneous (LI) functions. The thermal element protects against sustained overloads, while the magnetic element trips immediately during high-current short circuits.
Can I use this 1-pole breaker for a 240V multi-wire branch circuit?
No. The FAL12020 is a 1-pole breaker intended for 120VAC single-phase circuits. 240V multi-wire branch circuits require a 2-pole breaker with an internal common trip to ensure both ungrounded conductors open simultaneously.
What does the 10kAIC interrupting rating signify for the FAL12020?
The 10kAIC rating means the breaker can safely clear a maximum fault current of 10,000 amps at 240V without sustaining catastrophic damage or creating a safety hazard.
Can the FAL12020 be installed in a standard Square D QO or Homeline load center?
No. The FAL12020 is an industrial F-Frame molded case circuit breaker. It is physically too large and uses a unit-mount design, making it incompatible with residential QO or Homeline plug-on busbars.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 38 reviews.
Total 5 star reviews: 37 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 31 most recent customer reviews
Last updated 7/31/25
Customers say these electrical components arrive quickly and match their specifications perfectly. Many reviews mention competitive pricing and reliable shipping times. Common feedback includes satisfaction with product condition and fit. While most orders arrive as expected, a few customers note shipping delays. Frequent comments address the accuracy of product descriptions and ease of ordering.
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Rating
38 reviews
- 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!
- FGFrancis G.Verified BuyerReviewingSquare D FAL32100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/27/26YMCA
EXCELLENT SERVICE.