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Eaton / Cutler-Hammer HFD3100S Molded Case Circuit Breaker

  • 100A
  • 3 Pole
  • Panel Mount
Eaton / Cutler-Hammer HFD3100S
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU HFD3100S
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  • 100A
  • 3 Pole
  • Panel Mount

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Eaton / Cutler-Hammer HFD3100S - 100A 3 Pole Molded Case Circuit Breaker

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$1,288.64 Check Stock

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Description

Designed for demanding industrial and marine applications, the Eaton HFD3100S features specialized stainless steel terminals for enhanced corrosion resistance. This 3-pole, 100A F-Frame breaker delivers 65 kAIC interrupting capacity at 480VAC with reliable thermal-magnetic (LI) trip technology. It mounts into Eaton Series C panelboards, switchboards, and motor control centers. The unit is HACR rated, current limiting, and fully capable of reverse feed operations.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number HFD3100S
Series HFD
Amperage 100A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC
Fit and installation
Frame Type FD
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Switchboards, Motor Control Centers
Wire Gauge 14 AWG - 1/0 AWG (Al/Cu)
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, Padlock Attachment, Motor Operator
Accessories Stainless Steel Load Side Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489
Approval CE, CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, High Interrupting Capacity, Stainless Steel Terminals

Product FAQs

6 answers
What enclosures or panels are compatible with the HFD3100S?

The HFD3100S is designed for use in Eaton Series C panelboards, switchboards, and motor control centers.

What is the difference between the standard FD3100 and the HFD3100S?

The HFD3100S is the high-interrupting capacity version of the standard FD3100. It features a 65kAIC rating at 480VAC, compared to the standard 35kAIC rating of the FD3100, while maintaining the exact same physical F-frame dimensions.

Can the HFD3100S be reverse fed?

Yes, Eaton Series C F-frame thermal magnetic circuit breakers like the HFD3100S are suitable for reverse feed applications.

Is the HFD3100S rated for DC applications?

Yes, this breaker is rated for up to 250VDC with an interrupting capacity of 22kAIC, making it suitable for specific DC control panels or battery systems.

What wire sizes do the standard lugs on the HFD3100S accept?

The included lugs accept 14 AWG to 1/0 AWG aluminum or copper wire.

Does the HFD3100S include ground fault or arc fault protection?

No, the HFD3100S is a standard thermal magnetic breaker providing long-time and instantaneous protection. It does not include GFCI or AFCI capabilities.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 21 reviews
Rating
Ratings
21 reviews
  • CH
    carl h.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer HFD3200 - 200A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/20/26
    Breaker

    Breaker shipped out and we received it super quick.

  • DL
    Deanna L.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer HFD3150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/19/26
    Eaton / Cutler-Hammer HFD3150 - 150A 3 Pole Molded Case Circuit Breaker

    We needed more breakers ASAP and once again, Michael David came thru like he always does. We are a 24/7/ emergency electrical restoration companyso most of our orders are always needed in a rush and SuperBreakers is always my go to!.

  • RF
    Ron F.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer HFD3045 - 45A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/9/26
    HFD3045

    Perfect breaker & great price/delivery. It's very easy to schedule around SB as their projected delivery times are accurate.

  • CP
    Christopher P.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer HFD3020L - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/13/26
    Fast and Cost effective

    Superbreakers Is always my first palce to look for harder to source breakers for a good price, and fast turnaround.

  • DS
    David S. B. D.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer HFD3060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/6/26
    Breaker

    Great response time and product