Skip to main content

- View New Merch Drops. Redeem with SuperPoints. -

Square D FAL36020-1021 - 20A 3 Pole Molded Case Circuit Breaker
Free Shipping Over $99

Square D FAL36020-1021 Molded Case Circuit Breaker

  • 20A
  • 3 Pole
  • Unit Mount
Square D FAL36020-1021
Molded Case Circuit Breaker
Brand Square D
SKU FAL36020-1021
Select Item Condition
Earn 1178 SuperPoints
  • 20A
  • 3 Pole
  • Unit Mount

Quantity

Request a Quote
Bulk Pricing
Send your parts list for a volume quote.
Request Pricing
Square D FAL36020-1021 - 20A 3 Pole Molded Case Circuit Breaker

Square D FAL36020-1021 - 20A 3 Pole Molded Case Circuit Breaker

New

$1,178.18 Check Stock

Quantity

Request a Quote
Description SpecificationsProduct FAQs SuperClub Warranties Shipping Reviews 5.0 (39)

Description

Integrating remote control capabilities, this 20A molded case circuit breaker includes a factory-installed 120VAC shunt trip. It provides essential LI protection for complex industrial systems. The unit-mount F-Frame device is engineered for Square D enclosures, switchboards, and motor control centers. When upgrading, it crosses over to the HGL36020, which also requires a shunt trip accessory. Rated for 25kAIC at 240VAC, it features fixed thermal and magnetic trip settings.

Specifications

Key specifications
Brand Square D
Part Number FAL36020-1021
Series FAL
Amperage 20A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC
Phase 3
AIC Rating 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type FAL
Terminal Type Lugs
For Use With Square D Enclosures, Switchboards, Motor Control Centers
Wire Gauge 14-4 AWG (Cu/Al)
Max Wire 4 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Line and Load Lugs Included, Shunt Trip (120VAC) (Factory Installed)
Standards CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated

Product FAQs

7 answers
What does the -1021 suffix indicate on the FAL36020-1021 breaker?

The -1021 suffix indicates that this breaker includes a factory-installed 120-240VAC shunt trip. This allows the breaker to be tripped remotely for enhanced safety and control in industrial power distribution systems.

What enclosures or panels is the FAL36020-1021 compatible with?

This F-Frame breaker is designed for unit mounting in compatible Square D enclosures, switchboards, and motor control centers.

What wire sizes are accepted by the lugs on this 20A breaker?

The factory-installed lugs accept 14 AWG to 4 AWG copper or aluminum wire.

Can this breaker be used in DC applications?

Yes, the FAL36020-1021 is rated for use on DC systems up to 250VDC, providing an interrupting rating of 10 kAIC.

What type of trip unit does the FAL36020-1021 feature?

It features a non-interchangeable thermal-magnetic trip unit with fixed long-time and instantaneous (LI) trip functions.

Is this a plug-on or bolt-on breaker?

Neither. The FAL36020-1021 is a unit-mount, feed-thru breaker, meaning it is typically bolted directly to a backpan or mounting plate rather than plugging onto a busbar.

What is the modern replacement for the legacy FAL36020-1021?

The legacy Square D F-Frame series has been replaced by the PowerPact B-Frame. For a direct replacement, look for a 20A, 3-pole PowerPact B-Frame breaker and ensure you add a 120-240VAC shunt trip accessory to maintain the remote tripping capability of the -1021 suffix.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Join SuperClub free Sign in

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

See coverage details

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.

Read our full shipping policy

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

5.0
Rated 5.0 out of 5 stars
Based on 39 reviews
Reviews Summary
Customers say this circuit breaker arrives in excellent condition and works as expected. The product performs flawlessly and functions reliably. Many reviews highlight fast shipping, competitive pricing, and quick delivery times. Users appreciate the availability of refurbished and obsolete models. The parts arrive well-packed and in like-new condition. Common feedback addresses excellent communication and straightforward ordering. Overall, customers report satisfaction with product quality, value, and prompt service fulfillment.
Search
Search Reviews
Rating
Ratings
Write a Review (Opens in a new window)
39 reviews
  • PC
    Pierre C.
    Verified Buyer
    Reviewing
    Square D FAL3603015M - 30A 3 Pole Motor Circuit Protector
    I recommend this product
    Rated 5 out of 5 stars
    9/15/26
    Great 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.

    Was this helpful?
  • MB
    Michael B.
    Verified Buyer
    Reviewing
    Square D FAL32030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/13/26
    Great product

    This item worked as expected and is good quality. SuperBreakers did a great job with communication and delivery.

    Was this helpful?
  • ZB
    Zachary B.
    Verified Buyer
    Reviewing
    Square D FAL36040 - 40A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/23/26
    Perfect

    Exactly what we needed and worked flawlessly. Thanks

    Was this helpful?
  • JR
    John R.
    Verified Buyer
    Reviewing
    Square D FAL36100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/29/26
    Circuit Breaker

    The breaker was in "like new" condition and well packed for shipping. Excellent value overall!

    Was this helpful?
  • RF
    Ron F.
    Verified Buyer
    Reviewing
    Square D FAL340801021 - 80A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/13/26
    Square D FAL340801021 - 80A 3 Pole Molded Case Circuit Breaker

    As usual SB has the best price and delivery was spot on!

    Was this helpful?