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Square D FH26015AB Molded Case Circuit Breaker

  • 15A
  • 2 Pole
  • I-Line
Square D FH26015AB
Molded Case Circuit Breaker
Brand Square D
SKU FH26015AB
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  • 15A
  • 2 Pole
  • I-Line

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Square D FH26015AB 2 Pole Circuit Breaker

Square D FH26015AB - 15A 2 Pole Molded Case Circuit Breaker

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$850.18 In Stock

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Description

Built to handle demanding 600V industrial distribution networks, this 15A two-pole F-frame breaker features a factory-configured Phase AB connection. The rugged molded case design incorporates fixed long-time and instantaneous (LI) trip functions to safeguard critical commercial circuits. As a trusted legacy component for Square D I-Line panelboards and switchboards, it provides an exact physical match for older infrastructure while being officially superseded by the PowerPacT HGA26015.

Specifications

Key specifications
Brand Square D
Part Number FH26015AB
Series FH
Amperage 15A
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
Fit and installation
Frame Type FH
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge 14-4 AWG (Cu/Al)
Max Wire 4 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
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

6 answers
What does the AB suffix indicate on the FH26015AB breaker?

The AB suffix specifies the phase connection for the I-Line bus. This specific breaker is configured to connect to Phase A and Phase B in the panelboard or switchboard.

Which panelboards are compatible with the FH26015AB?

This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features a plug-on design specific to the I-Line bus system and will not fit standard load centers or NQ/NF panels.

What wire size and material is accepted by the lugs on this breaker?

The factory-installed lugs accept wire sizes ranging from 14 AWG to 4 AWG. Both copper (Cu) and aluminum (Al) conductors are supported.

Is this breaker suitable for direct current (DC) applications?

Yes, the FH26015AB is rated for DC applications up to 250VDC with a maximum interrupting capacity of 10kA.

Is the Square D FH frame still in active production?

The FH frame is classified as a legacy molded case circuit breaker. While no longer the current generation, it remains a direct replacement for existing I-Line installations requiring an F-frame footprint.

Does this breaker require a separate mounting bracket for installation?

No separate mounting hardware is required. The I-Line style plug-in connection allows the breaker to mount directly onto the interior bus assembly of the panelboard.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 10 reviews
Rating
Ratings
10 reviews
  • DM
    Donald M.
    Verified Buyer
    Reviewing
    Square D FH36030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Excellent 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

  • PH
    payton h.
    Verified Buyer
    Reviewing
    Square D FH36090 - 90A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/17/26
    great

    great straightforward company has almost everything you could ever need in stock

  • SG
    Shawn G.
    Verified Buyer
    Reviewing
    Square D FH36020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/20/26
    Thanks !

    Excellent service & gear per usual !

    Thanks !

  • E
    Earnest
    Verified Buyer
    Reviewing
    Square D FH36060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/3/25
    Fast delivery and quality

    The breaker was in great condition.

  • JP
    Jason P.
    Verified Buyer
    Reviewing
    Square D FH36050 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/5/25
    Breakers

    Order was placed and they came in on time in good condition