Engineered for commercial applications, the Eaton HFD1020 provides reliable thermal-magnetic protection. This 1-pole, 20-amp F-frame breaker operates at up to 277VAC with a 65kAIC rating. It installs into Eaton Series C panelboards and switchboards via a standard bolt-on connection. For legacy upgrades, it is replaced by the PDG21M0020TFFJ using a retrofit kit. Built with current-limiting capabilities, it includes HACR, HID, and SWD ratings alongside reverse-feed support.
What panelboards are compatible with the HFD1020 circuit breaker?
This F-frame breaker is designed specifically for Eaton Series C panelboards and switchboards. It is a commercial bolt-on breaker and will not fit into standard residential BR or CH load centers.
What is the difference between Eaton FD and HFD Series C breakers?
The 'H' in HFD designates a high interrupting capacity. While standard FD breakers have lower short-circuit ratings, the HFD1020 provides up to 65kAIC at 277VAC and 100kAIC at 240VAC for systems with higher available fault currents.
What wire sizes are accepted by the standard lugs on the HFD1020?
The standard factory lugs on this breaker accept 14 AWG through 1/0 AWG copper or aluminum conductors.
Can the Eaton HFD1020 replace older Westinghouse or Cutler-Hammer breakers?
Yes. Eaton acquired the distribution equipment divisions of both Westinghouse and Cutler-Hammer. The Eaton Series C HFD1020 is a direct replacement for legacy Westinghouse and Cutler-Hammer breakers sharing the same catalog number and F-frame footprint.
What is the Eaton Power Defense replacement for the HFD1020?
For legacy upgrades, the HFD1020 can be replaced by the Eaton Power Defense PDG21M0020TFFJ. Note that upgrading to the newer Power Defense platform requires a specific retrofit kit and updated mounting hardware.
Can the HFD1020 be used in DC power systems?
Yes, this thermal-magnetic breaker is rated for 125VDC applications, providing an interrupting capacity of 10kAIC for direct current circuits.
How is the HFD1020 secured inside the panelboard?
It utilizes a bolt-on connection, meaning the breaker terminals bolt directly to the panelboard bus. This provides a secure, vibration-resistant mechanical and electrical connection typical of commercial F-frame installations.
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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