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Square D FAL34050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Square D
FAL34050
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL34050
Quantity
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Square D FAL34050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Square D FAL34050 - 50A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | FAL34050 |
| Series | FAL |
| Amperage | 50A |
| 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 |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| 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 |
Quantity
Square D FAL34050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL34050-R |
| Series | FAL |
| Amperage | 50A |
| 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 |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| 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 |
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Description
Delivering dependable overcurrent protection, the Square D FAL34050 is a 50A, 3-pole molded case circuit breaker. It utilizes fixed thermal and magnetic trip units to safeguard commercial and industrial electrical systems. This unit-mount device integrates smoothly into Square D enclosures and switchboards. As part of the legacy F-Frame family, it serves as a reliable component for existing setups and is officially replaced by the BDL36050 in newer installations.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL34050-R |
| Series | FAL |
| Amperage | 50A |
| 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 |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 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, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| 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
6 answersWhat enclosures or panelboards are compatible with the FAL34050?
Because it is a unit-mount circuit breaker, the FAL34050 installs directly into individual Square D enclosures or standard unit-mount switchboards. It is not designed to plug into I-Line panelboards.
Is the FAL34050 discontinued, and what is its direct replacement?
Yes, Schneider Electric has obsoleted the legacy F-frame series. For new installations or complete panel upgrades, the manufacturer recommends the PowerPacT B-frame breaker, catalog number BDL36050.
Can this molded case circuit breaker be used in DC applications?
Yes, the FAL34050 is rated for direct current systems up to 250 VDC, where it delivers a 10 kA interrupting capacity. Always consult the manufacturer guidelines for proper DC pole wiring configurations.
What does the LI designation mean for the thermal-magnetic trip unit?
The LI code indicates that the breaker provides Long-Time (L) protection against sustained electrical overloads and Instantaneous (I) protection for short circuits. Both the thermal and magnetic trip elements are fixed at the factory.
Are the lug terminals included with this circuit breaker?
Yes, the unit ships with factory-installed mechanical lugs on both the line and load sides. These terminals accept either copper or aluminum conductors, eliminating the need to purchase standard lugs separately.
What are the magnetic hold and trip current values for the 50A FAL breaker?
The fixed magnetic trip unit is factory calibrated with a 400A hold current and an 850A trip current. This calibration ensures the breaker passes temporary motor inrush currents while quickly clearing severe short circuits.
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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.