Square D FAL36050-1021 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Quantity
Square D FAL36050-1021 - 50A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the legacy F-frame series, the Square D FAL36050-1021 is a 3-pole, 50A MCCB built for industrial power distribution. It features a factory-installed 120-240VAC shunt trip, allowing the breaker to be opened remotely via an external signal. This unit mounts into standard Square D enclosures and switchboards. It is replaced by the HDL36050, which requires a compatible shunt trip accessory. Delivering reliable thermal-magnetic protection, it provides 18kAIC at 480VAC and includes lugs.Specifications
| Brand | Square D |
|---|---|
| Part Number | FAL36050-1021 |
| Series | FAL |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| 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 (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 | Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (Factory Installed), Line and Load Lugs Included |
| 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 does the -1021 suffix mean on the FAL36050-1021?
The -1021 suffix indicates that this breaker includes a factory-installed 120-240VAC shunt trip accessory. This allows the breaker to be tripped remotely using an external control signal.
What is the modern replacement for the legacy FAL36050-1021?
The FAL series is a legacy F-frame breaker. The modern equivalent is the PowerPact H-frame series, specifically the HDL36050. To replicate the -1021 functionality, you must also install a compatible 120-240VAC shunt trip accessory in the new PowerPact breaker.
Can I adjust the trip settings on the FAL36050-1021?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides long-time and instantaneous protection, but the trip thresholds cannot be adjusted in the field.
How does the factory-installed shunt trip improve safety?
The 120-240VAC shunt trip allows for remote tripping of the breaker. When voltage is applied to the shunt trip coil from an external source, such as an emergency stop button or fire alarm relay, it mechanically trips the breaker to safely disconnect power.
Is the FAL36050-1021 compatible with I-Line panelboards?
No, this is a unit mount, feed-thru circuit breaker designed to be bolted to a backpan in standard enclosures, switchboards, or motor control centers. It does not have the plug-on jaw connections required for Square D I-Line bus systems.
Are the lugs on the FAL36050-1021 rated for aluminum wire?
Yes, the standard factory lugs are dual-rated for both copper and aluminum conductors. They accept 14 to 1/0 AWG copper wire or 12 to 1/0 AWG aluminum wire.
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 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!