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Square D FH26020AB Molded Case Circuit Breaker
- 20A
- 2 Pole
- I-Line
Square D
FH26020AB
Molded Case Circuit Breaker
Brand
Square D
SKU
FH26020AB
Quantity
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Square D FH26020AB - 20A 2 Pole Molded Case Circuit Breaker
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Description
Built for commercial power systems, the Square D FH26020AB is a 2-pole, 20A legacy F-frame circuit breaker. It features fixed thermal-magnetic trip units to deliver reliable protection against overcurrent events. This specific model is factory-configured for A and B phase connection on the I-Line bus, ensuring correct phase alignment when mounted into compatible Square D panelboards. It replaces older F-frame units and crosses over to the modern HGA260201. It includes a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FH26020AB |
| Series | FH |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480Y/277VAC, 25kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Phase Connection AB |
| 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 |
Product FAQs
6 answersWhat type of panelboards are compatible with the FH26020AB?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features a specialized plug-on mounting system for the line side.
What does the AB suffix indicate in the FH26020AB catalog number?
The AB suffix designates the phase connection. It means this 2-pole breaker is configured to connect to Phase A and Phase B on the I-Line bus.
What wire sizes are accepted by the load lugs on this breaker?
The load-side mechanical lugs accept 14 AWG to 4 AWG copper or aluminum wire. The line side utilizes the I-Line plug-on connection.
Is the FH26020AB still manufactured, or is there a modern replacement?
The legacy FH frame has been phased out by Schneider Electric. The direct modern replacement in the PowerPact series is the B-frame BGA260201, which shares the same 20 Amp rating, 2-pole configuration, and AB phase connection.
What type of protection does the FH26020AB provide?
It utilizes a fixed thermal-magnetic trip unit that provides both Long-Time (L) protection against overloads and Instantaneous (I) protection against short circuits.
Can the FH26020AB be used in DC applications?
Yes, this breaker is rated for use in DC systems up to 250VDC, with an interrupting capacity of 10kA at 250VDC.
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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