Square D FAL36100-1021 FAL361001021 - 100A 3 Pole Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Square D FAL361001021 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Square D FAL361001021 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL36100-1021 |
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (120-240VAC), 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 FAL361001021 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FAL36100-1021-R |
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (120-240VAC), 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 |
Description
Featuring integrated remote-trip capabilities, the Square D FAL36100-1021 is a 3-pole, 100A molded case circuit breaker with thermal-magnetic (LI) protection. This unit mount MCCB fits Square D enclosures and switchboards. The "-1021" suffix denotes a factory-installed 120-240VAC shunt trip for emergency stops. It crosses over to the HDL36100 series for modern upgrades. Rated 18kAIC at 480VAC, it includes a Visi-Trip indicator for rapid fault identification and carries a HACR rating.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL36100-1021-R |
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| 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 | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (120-240VAC), 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
7 answersWhat does the "-1021" suffix mean on the FAL36100-1021?
The "-1021" suffix indicates that this circuit breaker includes a factory-installed 120/240V AC shunt trip. This accessory allows the breaker to be tripped remotely, which is commonly used for emergency stops or automated control systems.
What is the modern replacement for the legacy Square D FAL36100-1021?
The FAL series is an obsolete F-frame breaker. Schneider Electric designates the PowerPact B-Frame (such as the BDL36100) as the modern replacement for 15 to 125A F-frame applications. To replicate the "-1021" functionality, you will also need to add a compatible 120/240V AC shunt trip accessory to the new B-frame breaker.
Will the FAL36100-1021 fit in a Square D I-Line panelboard?
No. This is a unit-mount (feed-thru) breaker equipped with line and load lugs, designed for standard enclosures, switchboards, and motor control centers. It does not have the plug-on jaw connections required for I-Line panelboards.
Can the FAL36100-1021 be reverse fed?
Yes. Standard Square D FAL thermal-magnetic circuit breakers are suitable for reverse feeding, provided they do not have restrictive "Line" and "Load" markings. This makes them versatile for backfeed applications like generator connections.
Is the FAL36100-1021 suitable for HVAC applications?
Yes. This breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment that requires group motor protection.
What replacement lug kit is compatible with the FAL36100-1021?
The standard mechanical lug kit for this 100A breaker is the AL100FA. These lugs accept 14 to 1/0 AWG copper or 12 to 1/0 AWG aluminum wire.
Does the FAL36100-1021 provide ground fault or arc fault protection?
No. This is a standard thermal-magnetic breaker providing only overload (long-time) and short-circuit (instantaneous) protection. It does not include GFCI or AFCI capabilities.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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.