Square D FC24070AC Molded Case Circuit Breaker
- 70A
- 2 Pole
- I-Line
Quantity
Square D FC24070AC - 70A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for commercial and industrial applications, the Square D FC24070AC is a 2-pole, 70A molded case circuit breaker from the legacy F-Frame family. It provides reliable thermal-magnetic protection for demanding electrical systems. This unit mounts into Square D I-Line panelboards and switchboards. As a legacy component, it is commonly replaced by the PowerPact HJA260702 in modernized setups. Rated at 65kAIC at 480VAC, it features a phase A-C connection and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FC24070AC |
| Series | FC |
| Amperage | 70A |
| 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 | FC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Phase Connection A-C (Factory Configured) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Extra High Interrupting Capacity, Phase Connection A-C, 2-Pole in 3-Pole Housing |
Product FAQs
5 answersCan I install the FC24070AC in a standard Square D QO load center?
No, the FC24070AC features an I-Line style plug-in connection. It is strictly compatible with Square D I-Line panelboards and switchboards, not standard residential QO or Homeline panels.
What does the AC suffix in the FC24070AC catalog number indicate?
The AC suffix specifies the breaker's phase connection. It is factory-configured to snap onto the A and C phases of an I-Line bus system.
How does the FC24070AC mount into the panel?
It utilizes the proprietary I-Line plug-on connection on the line side, allowing it to snap directly onto the bus of a Square D I-Line panelboard without the need for line-side wire connections.
Is the Square D FC frame still in active production?
The FC frame is a legacy component from Square D's F-Frame family. While exact replacements are still sourced for existing panels, modernized systems typically upgrade to the newer PowerPact H-Frame series.
Can I use aluminum conductors with the FC24070AC breaker?
Yes, the terminal lugs are dual-rated for both copper and aluminum wire. They accept 14 to 1/0 AWG copper or 12 to 1/0 AWG aluminum conductors.
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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.