Square D FC24040BC Molded Case Circuit Breaker
- 40A
- 2 Pole
- I-Line
Quantity
Square D FC24040BC - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
The FC24040BC is a legacy 2-pole thermal-magnetic molded case circuit breaker manufactured by Square D. Designed for commercial and industrial power distribution, it provides reliable overcurrent and short-circuit protection. This F-Frame breaker installs into Square D I-Line panelboards and switchboards, featuring a factory-configured B-C phase connection. Rated for 40A and 65kAIC at 480VAC, it is a direct replacement for older systems and is superseded by the PowerPact HJA260404.Specifications
| Brand | Square D |
|---|---|
| Series | FC |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 10kA @ 250VDC |
| Frame Type | F |
|---|---|
| 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 |
| 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs (AL100FA) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity, Visual Trip Indicator, Phase Connection BC |
Product FAQs
6 answersWhat does the "BC" suffix mean in the FC24040BC catalog number?
The "BC" suffix indicates the phase connection for the I-Line bus. This 2-pole breaker is configured to connect specifically to the B and C phases in Square D I-Line panelboards and switchboards.
Can I install the FC24040BC in a standard QO or Homeline load center?
No. The FC24040BC features an I-Line style plug-in connection designed exclusively for Square D I-Line panelboards and switchboards. It will not fit in standard residential QO or Homeline load centers.
What is the difference between the FC24040BC and the FA24040BC?
The primary difference is the interrupting rating. The FC24040BC is a high-interrupting breaker rated at 65kA at 480V, whereas the standard FA24040BC has a lower interrupting capacity of 18kA at 480V. Both share the same physical F-frame footprint and I-Line mounting.
Is the FC24040BC rated for use in DC circuits?
Yes, this breaker is rated for up to 250V DC with an interrupting capacity of 10kA, making it suitable for specific direct current applications alongside its standard AC ratings.
Does the FC24040BC require separate bus connectors for installation?
No. The FC24040BC features integral plug-on jaws that connect directly to the I-Line bus stack. It is secured in place with a screwdriver, eliminating the need to assemble separate connectors to the bus bar.
Does the FC24040BC include a push-to-trip feature?
Yes, like all standard I-Line circuit breakers, it includes a push-to-trip button on the breaker case. This allows you to mechanically trip the breaker to verify operation and test auxiliary devices.
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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.