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Square D FH36100 Molded Case Circuit Breaker

  • 100A
  • 3 Pole
  • I-Line
Square D FH36100
Molded Case Circuit Breaker
Brand Square D
SKU FH36100
Select Item Condition
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  • 100A
  • 3 Pole
  • I-Line

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Square D FH36100 - 100A 3 Pole Molded Case Circuit Breaker

Square D FH36100 - 100A 3 Pole Molded Case Circuit Breaker

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$1,455.00 In Stock

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Description

Built for commercial power systems, the Square D FH36100 provides 100A of reliable overcurrent defense as part of the legacy F-Frame series. It mounts into Square D I-Line panelboards via a secure plug-on connection. While ideal for existing panels, the HGA36100 serves as its modern replacement. Equipped with fixed thermal-magnetic trip units, it provides standard LI protection. It carries a 25kAIC rating at 480VAC and features a Visi-Trip indicator.

Specifications

Key specifications
Brand Square D
Part Number FH36100
Series FH
Amperage 100A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC
Fit and installation
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
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, Undervoltage Release, Alarm Switch
Accessories Load Side Lugs (AL100FA)
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, RoHS Compliant, Mercury Free, PVC Free

Product FAQs

8 answers
What types of panelboards accept the FH36100 circuit breaker?

This breaker is designed exclusively for use in Square D (Schneider Electric) I-Line power distribution panelboards and switchboards. The unique plug-on jaw connection mounts directly to the I-Line bus system.

How much bus space does this breaker require in an I-Line panel?

As a 3-pole F-Frame I-Line breaker, the FH36100 requires 4.5 inches of vertical mounting space on the panelboard bus (1.5 inches per pole).

Has the legacy FH36100 been replaced by a newer model?

Yes, the legacy F-Frame breakers have been largely superseded by the modern PowerPact H-Frame series, such as the HDA36100 or HJA36100. These H-Frame replacements occupy the same 4.5 inches of I-Line bus space for easy retrofitting.

Can the FH36100 be used in DC voltage applications?

Yes, this breaker is rated for use in DC systems up to 250VDC, providing up to 10kA of interrupting capacity.

Is the FH36100 HACR rated for HVAC equipment?

Yes, this thermal-magnetic breaker is HACR rated, making it suitable for group motor protection in heating, air conditioning, and refrigeration applications.

What are the acceptable wire sizes for the factory lugs?

The standard load-side lugs accept 14 AWG to 1/0 AWG copper wire, or 12 AWG to 1/0 AWG aluminum wire.

Do I need a separate mounting kit to install this breaker?

No, the I-Line style plug-in connection features built-in blow-on jaws that attach directly to the panelboard bus. No additional mounting hardware kits are required.

Does this breaker feature a tripped-status indicator?

Yes, it includes Square D's Visi-Trip indicator. When the breaker trips due to an overcurrent or short circuit, the handle snaps to a center position and a high-visibility red indicator appears, making it easy to identify the tripped circuit.

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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