Built for demanding power distribution networks, the Eaton HFD2045 is a 2-pole, 45A molded case circuit breaker. Operating within the Series C F-Frame platform, it delivers consistent long-time and instantaneous trip functions for 600VAC systems. The breaker features a bolt-on mounting design equipped with load side lugs, making it an exact fit for Eaton Series C panelboards. With a high interrupting rating of 65kAIC at 480V, this current-limiting unit ensures superior fault management.
What panelboards are compatible with the HFD2045 circuit breaker?
This F-frame breaker is designed for use in Eaton Series C panelboards and switchboards. It requires a bolt-on connection and is not compatible with standard plug-on load centers like the BR or CH series.
What wire sizes are accepted by the terminals on the HFD2045?
The factory-installed lugs accept copper or aluminum (Cu/Al) conductors ranging from 14 AWG to 1/0 AWG. Always torque the terminals to the manufacturer specifications printed on the breaker label before energizing.
What is the difference between an FD and an HFD circuit breaker?
The HFD series is the high-interrupting capacity version of the standard FD frame. While standard FD breakers typically have a 35kAIC rating at 480VAC, the HFD2045 provides a 65kAIC rating at 480VAC for systems with higher available fault currents.
Is the HFD2045 rated for direct current (DC) applications?
Yes, this thermal-magnetic breaker is rated for up to 250VDC with an interrupting capacity of 22kAIC. It is suitable for both AC and DC power distribution systems.
How does the trip unit function on the HFD2045?
It features a non-interchangeable thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. This provides standard LI (Long-Time and Instantaneous) protection against overloads and short circuits.
Can the Eaton HFD2045 replace older Westinghouse or Cutler-Hammer models?
Yes, Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. The HFD2045 is a direct replacement for legacy Cutler-Hammer and Westinghouse Series C HFD breakers with the exact same catalog number.
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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