Square D FAL321001021 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Square D FAL321001021 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for commercial and industrial applications, the FAL321001021 is a 100A, 3-pole molded case circuit breaker from the legacy F-Frame series. It provides reliable thermal-magnetic protection and features a factory-installed 120-240VAC shunt trip for remote tripping capabilities. This unit-mount breaker installs into Square D enclosures and switchboards. For modern upgrades, it is replaced by the PowerPact B-Frame (BDL36100). Rated at 10kAIC at 240VAC, it includes Visi-Trip indication.Specifications
| Brand | Square D |
|---|---|
| Series | FAL |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 250VDC |
| Frame Type | FAL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Switchboards, Control Panels |
| 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 (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
8 answersWhat does the 1021 suffix indicate on the FAL321001021?
The 1021 suffix denotes a factory-installed 120 to 240VAC shunt trip, which allows the circuit breaker to be tripped remotely for emergency stops or control system integration.
What is the modern replacement for the legacy FAL321001021 breaker?
The legacy F-Frame series has been replaced by the Square D PowerPact B-Frame series. A common modern equivalent is the BDL36100, though you will need to add a compatible shunt trip accessory to match the remote trip functionality of the original unit.
What wire sizes are compatible with the terminals on this breaker?
The standard feed-thru lugs accept 14 to 1/0 AWG copper wire or 12 to 1/0 AWG aluminum wire.
Can the FAL321001021 be used in DC applications?
Yes, in addition to its 240VAC rating, this thermal magnetic breaker is rated for use on 250VDC systems with an interrupting capacity of 5kAIC.
How does the trip mechanism operate on this F-Frame breaker?
It utilizes a fixed thermal magnetic trip unit with long-time and instantaneous (LI) functions. It also features a Visi-Trip indicator for rapid visual identification of a tripped condition.
Are the trip settings adjustable on the FAL321001021?
No, both the thermal and magnetic trip elements are fixed and cannot be adjusted in the field.
How is this circuit breaker mounted?
This is a unit-mount breaker designed to be hardwired into Square D enclosures, switchboards, and control panels. It is not a plug-on or I-Line breaker.
Is the FAL321001021 suitable for use with HVAC equipment?
Yes, this breaker is HACR rated, meaning it is approved for use with commercial heating, air conditioning, and refrigeration equipment.
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