Square D FDA221001 Molded Case Circuit Breaker
- 100A
- 2 Pole
- I-Line
Square D
FDA221001
Molded Case Circuit Breaker
Brand
Square D
SKU
FDA221001
Quantity
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Square D FDA221001 - 100A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial and industrial use, the Square D FDA221001 is a 2-pole F-Frame molded case circuit breaker. It delivers robust thermal-magnetic protection for 240V distribution systems. The 100A unit features an I-Line plug-on mounting style, installing seamlessly into Square D I-Line panelboards. It serves as an exact cross-reference for FH221001 units and is replaced by the QDA221001. Rated at 25kAIC, it includes fixed LI trip functions, HACR certification, and Visi-Trip.Specifications
| Brand | Square D |
|---|---|
| Series | FDA |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/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 | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhat type of panelboard is the Square D FDA221001 designed for?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on I-Line connection that mounts directly to the bus assembly.
What wire sizes are accepted by the lugs on the FDA221001?
The factory-installed lugs accept copper or aluminum wire ranging from 14 AWG to 1/0 AWG. Ensure you torque the connections to the manufacturer specifications printed on the breaker label.
Is the Square D F-frame FDA221001 circuit breaker still actively manufactured?
The F-frame series is a legacy product line that has been phased out by Schneider Electric. It is typically replaced by the newer PowerPact series, though exact retrofits depend on your specific I-Line panelboard configuration.
Can I adjust the trip settings on the FDA221001?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set for 100 amps and cannot be modified in the field.
Does the FDA221001 require a separate mounting hardware kit?
No, as an I-Line style plug-in breaker, it mounts directly onto the I-Line bus stack. The breaker includes the necessary jaw contacts to secure it to the panelboard bus without additional bolt-on hardware.
Can the FDA221001 be used in a 480V system?
No, this specific breaker is rated for a maximum of 240V AC. While some F-frame breakers support higher voltages, this model provides a 25kA interrupting capacity strictly at 240V and is not suitable for 480V or 600V applications.
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