Belonging to the Eaton Series C F-Frame family, the HFD3100L provides 100A of reliable thermal-magnetic protection. Built for commercial and industrial applications, it utilizes long-time and instantaneous (LI) trip functions to secure electrical systems. This unit-mount breaker installs into Eaton Series C panelboards, switchboards, and motor control centers. Rated at 65 kAIC at 480VAC, it features HACR certification and reverse feed capability for versatile power distribution setups.
HACR Rated, Reverse Feed, High Interrupting Capacity, Non-Interchangeable Trip
Product FAQs
4 answers
What does the L suffix mean in the HFD3100L catalog number?
The L suffix indicates the circuit breaker is factory-supplied with both line and load-side lug terminals. Standard catalog numbers without the suffix typically include load-side lugs only.
What is the modern Eaton replacement for the HFD3100L?
Eaton has transitioned the legacy Series C F-frame line to the newer Power Defense platform. The recommended direct equivalent is the PDG23M0100TFFJ, though you should verify enclosure and hardware compatibility before retrofitting.
Can the HFD3100L be reverse fed?
Yes, standard Eaton Series C F-frame thermal-magnetic circuit breakers do not have directional line and load restrictions and are suitable for reverse feed applications.
Are the standard lugs on the HFD3100L rated for aluminum wire?
Yes, the factory lugs provided with this Series C F-frame breaker are dual-rated for use with both copper (Cu) and aluminum (Al) conductors.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 21 reviews.
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