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Square D FH26080 Molded Case Circuit Breaker
- 80A
- 2 Pole
- I-Line
Square D
FH26080
Molded Case Circuit Breaker
Brand
Square D
SKU
FH26080
Quantity
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Square D FH26080 - 80A 2 Pole Molded Case Circuit Breaker
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Description
Providing robust thermal-magnetic protection, the Square D FH26080 serves as an 80-amp, 2-pole molded case circuit breaker. It features long-time and instantaneous trip functions to safeguard industrial circuits. This unit installs into Square D I-Line panelboards and switchboards. As a legacy F-Frame breaker, it is commonly used for maintenance and is replaced by the HGA26080 in newer designs. Featuring a 25kAIC rating at 480VAC, this breaker includes a trip-free mechanism for safety.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH26080 |
| 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 | F |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator, Trip-Free Mechanism |
Product FAQs
7 answersWhat is the difference between the Square D FA26080 and FH26080 circuit breakers?
Both are 80A, 2-pole F-frame I-Line circuit breakers, but they have different interrupting ratings. The FH26080 is the high-interrupting version, rated at 65kA at 240VAC and 25kA at 480VAC. The standard FA26080 is rated lower, at 25kA at 240VAC and 18kA at 480VAC.
What is the modern replacement for the obsolete FH26080 I-Line circuit breaker?
The Square D PowerPact B-frame series is the designated modern replacement for legacy F-frame breakers. A B-frame I-Line breaker with matching specifications will fit the same mounting space in existing I-Line panelboards and switchboards to ease retrofits.
What type of panels will the FH26080 fit into?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-on connection for the line side and cannot be used in standard load centers or NQ and NF panelboards.
What wire sizes and materials are accepted by the load side lugs on the FH26080?
The mechanical lugs accept 14 AWG to 1/0 AWG copper wire, or 12 AWG to 1/0 AWG aluminum wire.
Can the FH26080 be used in DC power systems?
Yes, this thermal magnetic breaker is rated for use in DC applications up to 250VDC, with a maximum interrupting rating of 10kA at that voltage.
How does the I-Line mounting system work on the FH26080?
The breaker features a plug-on line side connection that snaps directly onto the I-Line bus stack in the panelboard. The load side utilizes standard mechanical lugs for wire termination.
Are the trip settings adjustable on the FH26080?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long time and instantaneous functions are factory calibrated and cannot be adjusted in the field.
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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