Square D FC34100-1021 Molded Case Circuit Breaker
- 100A
- 3 Pole
- I-Line
Quantity
Square D FC34100-1021 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for commercial and industrial power distribution, this 3-pole, 100A molded case circuit breaker includes a factory-installed 120-240VAC shunt trip. This allows facility managers to remotely open the circuit for automated control. This F-Frame breaker mounts into Square D I-Line panelboards and switchboards. For modern replacements, substitute with the HJA36100 along with a compatible shunt trip. Delivering a 65 kAIC rating at 480VAC, it utilizes thermal-magnetic trip technology.Specifications
| Brand | Square D |
|---|---|
| Part Number | FC34100-1021 |
| Series | FC |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | FC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| 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 (120-240VAC) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity, Visual Trip Indicator |
Product FAQs
5 answersWhat does the -1021 suffix indicate on the FC34100-1021 breaker?
The -1021 suffix designates that this breaker includes a factory-installed 120V AC shunt trip accessory. This allows the breaker to be tripped remotely via an external control signal.
Which panelboards are compatible with the FC34100-1021 circuit breaker?
This breaker features an I-Line style plug-in connection and is designed exclusively for use in Square D I-Line panelboards and switchboards. It is not compatible with standard load centers or NQ and NF series panels.
What wire sizes are accepted by the standard lugs on this breaker?
The lugs accept copper conductors from 14 AWG to 1/0 AWG, or aluminum conductors from 12 AWG to 1/0 AWG. Always verify local codes and apply the correct torque during installation.
Are the thermal and magnetic trip settings adjustable on this model?
No, this FC frame breaker utilizes a thermal-magnetic trip unit with fixed long-time and fixed instantaneous (LI) trip functions. The trip points cannot be modified in the field.
Can the FC34100-1021 be utilized in DC electrical systems?
Yes, this molded case circuit breaker is rated for DC applications up to 250V DC, where it provides an interrupting capacity of 10kA.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
- AMAlan M.ReviewingSquare D FC34050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/25/21Breaker Order
All units were as described and sent quickly.
- JLJon L.ReviewingSquare D FC34030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/10/20SQ D Breaker
Needed an older breaker for a last minute job. Super Breakers had it in stock and it was in my hands in 2 days. Saved the day.