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Square D FH26040BC Molded Case Circuit Breaker
- 40A
- 2 Pole
- I-Line
Square D
FH26040BC
Molded Case Circuit Breaker
Brand
Square D
SKU
FH26040BC
Quantity
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Square D FH26040BC - 40A 2 Pole Molded Case Circuit Breaker
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Description
Part of the Square D F-frame series, this 40A molded case circuit breaker is engineered for robust industrial applications. It features thermal-magnetic trip technology with fixed long-time and instantaneous (LI) protection. The unit installs into Square D I-Line panelboards and switchboards, utilizing a factory-configured BC phase connection. Rated for 65 kAIC at 240VAC and 25 kAIC at 480VAC, it delivers reliable fault clearing and includes a Visi-Trip indicator for status verification.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH26040BC |
| Series | FH |
| Amperage | 40A |
| 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, 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| 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 |
Product FAQs
5 answersWhat equipment is compatible with the FH26040BC circuit breaker?
The FH26040BC is an I-Line style plug-in breaker designed exclusively for Square D I-Line panelboards and switchboards. It mounts directly to the interior bus assembly without the need for additional line-side wiring or mounting hardware.
What does the BC suffix indicate on the FH26040BC?
The BC suffix specifies the breaker's factory-configured phase connection. This 2-pole breaker is built with line-side jaws designed to connect specifically to the B and C phases of the I-Line panelboard bus.
What is the modern replacement for the legacy Square D FH26040BC?
The legacy F-Frame series has been superseded by the Schneider Electric PowerPact B-Frame and H-Frame series. These modern PowerPact breakers occupy the same mounting space and serve as direct plug-on replacements for older FH models in existing I-Line panels.
How is the FH26040BC wired during installation?
The line side of the breaker utilizes plug-on jaws that attach directly to the I-Line bus. The load side features mechanical lugs that accept 14 to 1/0 AWG copper or 12 to 1/0 AWG aluminum conductors.
How does the thermal-magnetic trip unit operate on the FH26040BC?
The breaker utilizes fixed thermal and fixed magnetic elements to provide LI (Long-Time and Instantaneous) protection. The thermal element responds to sustained overloads by heating a bimetallic strip, while the magnetic element trips immediately during high-magnitude short circuits.
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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