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Square D FAL34100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Square D
FAL34100
Molded Case Circuit Breaker
Brand
Square D
SKU
FAL34100
Quantity
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Square D FAL34100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D FAL34100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL34100 |
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Panelboards (Unit Mount) |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu) / 12 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL100FA) |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1, IEC 60947-2, HACR Rated |
| Approval | CSA, UL, IEC |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D FAL34100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL34100-R |
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Panelboards (Unit Mount) |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu) / 12 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL100FA) |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1, IEC 60947-2, HACR Rated |
| Approval | CSA, UL, IEC |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Built to handle substantial power demands, the 100A FAL34100 utilizes proven thermal-magnetic technology for circuit protection. The three-pole configuration delivers precise trip responses. This unit-mount device fastens into Square D panelboards, switchboards, and standalone enclosures. While it serves as a reliable replacement for legacy F-Frame installations, the BDL36100 is the designated substitute. Maintenance teams benefit from the signature Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL34100 |
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Panelboards (Unit Mount) |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu) / 12 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (AL100FA) |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1, IEC 60947-2, HACR Rated |
| Approval | CSA, UL, IEC |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersCan the FAL34100 circuit breaker be installed in an I-Line panelboard?
No. The FAL34100 is a unit-mount, feed-thru circuit breaker equipped with standard line and load lugs. It lacks the plug-on jaw connectors required to mount into Square D I-Line distribution panelboards.
Are the terminal lugs on the FAL34100 rated for both copper and aluminum wiring?
Yes. The standard factory lugs are dual-rated for both copper and aluminum conductors. The accepted wire range is 14 to 1/0 AWG for copper, and 12 to 1/0 AWG for aluminum.
Is there a modern replacement for the legacy Square D FAL34100 F-Frame breaker?
Yes. Schneider Electric designates the PowerPact B-Frame series as the direct modern replacement for obsolete 100-amp F-Frame circuit breakers.
Can the FAL34100 be utilized in direct current (DC) systems?
Yes. In addition to standard AC applications, this breaker is rated to interrupt 10kA at 250VDC, making it suitable for specialized direct current loads.
Does the FAL34100 offer adjustable trip settings?
No. This breaker uses a thermal-magnetic trip unit with fixed long-time and fixed instantaneous (LI) trip curves. It cannot be adjusted or calibrated in the field.
Is the FAL34100 suitable for HVAC installations requiring a HACR rating?
Yes. The FAL34100 is UL listed as HACR rated, making it suitable for use with group motor applications typically found in heating, air conditioning, and refrigeration equipment.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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.