Built for demanding environments, the Eaton HFD1020J01 features a specialized moisture and fungus treatment. This 1-pole, 20-amp breaker provides thermal-magnetic protection with a 65kAIC rating at 277VAC. It installs into Eaton Series C panelboards using standard bolt-on lugs. For replacements, the standard PDG21M0020TFFJ serves as the modern equivalent, requiring a retrofit kit. Beyond its environmental protections, this unit is HACR rated and supports reverse feed applications.
HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip
Product FAQs
6 answers
What does the "J01" suffix mean on the Eaton HFD1020J01?
The "J01" suffix indicates that the circuit breaker has received a factory moisture and fungus treatment. This makes the breaker fungus proof, which is ideal for marine applications, tropical environments, or other high humidity installations.
What equipment is the HFD1020J01 F-Frame breaker compatible with?
This breaker is designed for use in Eaton Series C panelboards, switchboards, motor control centers, and busway systems. It mounts using a standard bolt-on connection.
What type of wire can be used with the HFD1020J01 terminals?
The factory installed cable-in/cable-out lugs accept 14 AWG through 1/0 AWG conductors. The terminals are dual rated for both copper (Cu) and aluminum (Al) wire.
Can the trip settings be adjusted on the HFD1020J01?
No, this breaker features a non-interchangeable, fixed thermal magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) trip functions are factory set and cannot be modified in the field.
Is the HFD1020J01 suitable for switching lighting loads?
Yes, as a 20-amp, 1-pole breaker, it carries an SWD (Switching Duty) rating, meaning it is approved for switching fluorescent lighting circuits on and off on a regular basis. It is also HID (High-Intensity Discharge) and HACR rated.
Can the HFD1020J01 be reverse fed?
Yes, Eaton Series C F-Frame thermal magnetic breakers like the HFD1020J01 do not have line and load restrictions, making them suitable for reverse feed applications.
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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