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Square D FH26080AC Molded Case Circuit Breaker
- 80A
- 2 Pole
- I-Line
Square D
FH26080AC
Molded Case Circuit Breaker
Brand
Square D
SKU
FH26080AC
Quantity
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Square D FH26080AC - 80A 2 Pole Molded Case Circuit Breaker
New
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Square D FH26080AC - 80A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FH26080AC |
| Series | FH |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FH |
|---|---|
| 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 |
| 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, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator |
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Square D FH26080AC - 80A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FH26080AC |
| Series | FH |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FH |
|---|---|
| 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 |
| 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, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator |
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Description
Part of the legacy F-Frame series, the Square D FH26080AC provides thermal-magnetic protection for commercial and industrial systems. This 80A, two-pole breaker features an AC phase connection and handles up to 600VAC. Designed for quick installation, it mounts into Square D I-Line panelboards. For modern system upgrades, this unit is replaced by the PowerPact HGA260802. It delivers a 65kAIC rating at 240V and includes a Visi-Trip indicator for rapid fault identification on the line.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH26080AC |
| Series | FH |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FH |
|---|---|
| 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 |
| 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, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator |
Product FAQs
6 answersWhat does the "AC" suffix mean on the FH26080AC catalog number?
The "AC" suffix indicates the internal bus connection configuration. It means this 2-pole breaker is factory-equipped to connect specifically to the A and C phases of a 3-phase I-Line panelboard bus.
What panelboards are compatible with the FH26080AC?
This breaker is exclusively designed for Square D I-Line panelboards and switchboards. It features a proprietary plug-on jaw design and cannot be used in standard load centers or unit-mount applications.
Is the Square D FH26080AC still manufactured, or is there a modern replacement?
The FH series is a legacy F-frame breaker. The modern replacement for Square D F-frame I-Line breakers is the PowerPact H-frame series. However, legacy FH breakers are still widely sourced to maintain existing switchboards and panels without requiring upgrades.
How are wires terminated on the FH26080AC?
Because this is an I-Line breaker, the line side connects directly to the panel bus via plug-on jaws. The load side features mechanical lugs that accept 14 to 1/0 AWG copper wire or 12 to 1/0 AWG aluminum wire.
Can the FH26080AC be used in direct current applications?
Yes. While primarily used in AC systems up to 600VAC, this breaker is also rated for 250VDC applications, providing a 10kA interrupting capacity for DC circuits.
How does the thermal-magnetic trip unit function on this breaker?
The FH26080AC features fixed Long-Time and Instantaneous (LI) protection. The thermal component provides a delayed trip to protect against sustained overloads, while the magnetic component trips instantaneously to clear short-circuit faults.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 10 reviews.
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Rating
10 reviews
- DMDonald M.Verified BuyerReviewingSquare D FH36030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Excellent Service
The support team with Super Breakers went over and beyond in ensuring the breakers were on site for an emergency repair…
CAVA Construction Manager very pleased!
Donald Mayo
Mayo Electric
- PHpayton h.Verified BuyerReviewingSquare D FH36090 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26great
great straightforward company has almost everything you could ever need in stock
- SGShawn G.Verified BuyerReviewingSquare D FH36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/20/26Thanks !
Excellent service & gear per usual !
Thanks !
- EEarnestVerified BuyerReviewingSquare D FH36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/3/25Fast delivery and quality
The breaker was in great condition.
- JPJason P.Verified BuyerReviewingSquare D FH36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/5/25Breakers
Order was placed and they came in on time in good condition