Designed to safeguard commercial electrical infrastructure, the Eaton HFD2045L is a 2-pole, 45A molded case circuit breaker. As part of the proven Series C family, it provides fixed thermal and magnetic trip responses for 600VAC circuits. This unit mount breaker comes standard with line and load lugs for feed-thru wiring, installing easily into Eaton Pow-R-Line panelboards and motor control centers. Capable of interrupting 65kAIC at 480V, it offers exceptional short-circuit protection.
HACR Rated, Current Limiting, High Interrupting Capacity, Reverse Feed, HID Rated, Non-Interchangeable Trip
Product FAQs
8 answers
What panelboards and equipment are compatible with the HFD2045L?
This breaker is designed for use in Eaton Series C panelboards, Pow-R-Line panelboards, switchboards, and motor control centers.
Can I use the Eaton HFD2045L to replace an older Westinghouse or Cutler-Hammer breaker?
Yes. Eaton acquired Westinghouse's distribution equipment division and Cutler-Hammer. The Eaton HFD2045L is a direct, backwards-compatible replacement for older Westinghouse and Cutler-Hammer breakers with the exact same catalog number.
Is this a plug-on or bolt-on circuit breaker?
The HFD2045L is a unit-mount, feed-thru circuit breaker. It does not use a plug-on or bolt-on connection to a panelboard bus.
What is the difference between FD, HFD, and FDC breakers?
These are all Eaton Series C F-frame breakers, but they have different interrupting capacities. The HFD is the high-interrupting tier, offering 65kAIC at 480VAC, while the FD is standard and the FDC is extra-high interrupting.
Can the HFD2045L be used in DC electrical systems?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC with a maximum interrupting rating of 22kAIC.
What does the L at the end of the HFD2045L catalog number mean?
The L suffix indicates that the circuit breaker comes factory-equipped with line and load terminal lugs.
What size wire does the HFD2045L accept?
The included lugs accept copper or aluminum wire ranging from 14 AWG to 1/0 AWG.
Are the trip settings on this breaker adjustable?
No. The HFD2045L features fixed thermal and fixed magnetic trip functions (Long-Time and Instantaneous) and cannot be adjusted in the field.
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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