Skip to main content

Square D FAL32100-1021 Molded Case Circuit Breaker

  • 100A
  • 3 Pole
  • Unit Mount
Square D FAL32100-1021
Molded Case Circuit Breaker
Brand Square D
SKU FAL32100-1021
Select Item Condition
Earn 970 SuperPoints
  • 100A
  • 3 Pole
  • Unit Mount

Quantity

Bulk Pricing
Send your parts list for a volume quote.
Square D FAL32100-1021 - 100A 3 Pole Molded Case Circuit Breaker

Square D FAL32100-1021 - 100A 3 Pole Molded Case Circuit Breaker

New

$970.48 No Stock

Quantity

Description

Designed for advanced control applications, this 100A F-frame molded case circuit breaker integrates a 120-240VAC shunt trip. This allows facility managers to remotely open the circuit for emergency shutdowns. It mounts securely into standard Square D commercial enclosures and switchboards. When transitioning to newer systems, this unit is replaced by the BDL36100 with a shunt trip accessory. Rated for 10kA at 240VAC, it provides reliable thermal-magnetic protection.

Specifications

Key specifications
Brand Square D
Part Number FAL32100-1021
Series FAL
Amperage 100A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 250VDC
Phase 3
AIC Rating 10kA @ 240VAC, 5kA @ 250VDC
Fit and installation
Frame Type FAL
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
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 Auxiliary Switch, Alarm Switch, Undervoltage Release
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

Product FAQs

8 answers
What does the -1021 suffix mean on the FAL32100-1021?

The -1021 suffix indicates that this breaker includes a factory-installed 120/240VAC shunt trip. This accessory allows for remote tripping of the circuit breaker via an external control signal or emergency stop button.

What enclosures or panels is the FAL32100-1021 compatible with?

This F-frame breaker is designed for unit mounting in compatible Square D commercial enclosures and switchboards. It is bolted directly to the backpan and is not designed to plug onto an I-Line busbar.

What wire sizes are accepted by the lugs on the FAL32100-1021?

The factory-installed lugs on this 100A breaker are dual-rated for copper and aluminum conductors. They accept 14 AWG to 1/0 AWG copper wire, or 12 AWG to 1/0 AWG aluminum wire.

What is the modern replacement for the FAL32100-1021?

The legacy F-frame FAL32100-1021 is obsolete and has been replaced by the PowerPact B-frame series. The direct equivalent is the BDL36100, which requires a field-installable shunt trip accessory to match the -1021 functionality.

Are the trip settings adjustable on the FAL32100-1021?

No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit trip points are factory-set and cannot be adjusted in the field.

Does the FAL32100-1021 feature a Visi-Trip indicator?

Yes, this breaker includes Square D's Visi-Trip visual indicator. It displays a highly visible red flag when the breaker has tripped, making it easier to identify faults in a crowded panel.

How is the shunt trip wired on the FAL32100-1021?

The factory-installed 120/240VAC shunt trip includes pigtail leads that exit the side of the breaker. These leads must be connected to your external control circuit to enable remote tripping.

Is the FAL32100-1021 suitable for HVAC applications?

Yes, this F-frame breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

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.
Rating
Ratings
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.

  • 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.

  • 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

  • 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!

  • 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!