Built for commercial applications, the Eaton FD3045 is a 3-pole, 45A molded case circuit breaker from the Series C lineup. This bolt-on MCCB features load-side lugs for integration into Eaton Series C panelboards and motor control centers. For upgrades, the PDG23G0045TFFL is the modern replacement, requiring a retrofit kit for older panels. Operating at up to 600VAC, the breaker achieves a 35kA interrupting rating at 480V. It is HACR rated and reverse feed capable for demanding environments.
What enclosures are compatible with the FD3045 breaker?
This F-frame breaker is designed for use in Eaton Series C panelboards, switchboards, and motor control centers. It requires bolt-on mounting hardware specific to the enclosure type.
What does the FD prefix indicate for this Series C breaker?
In the Eaton Series C family, the FD frame designates a specific interrupting capacity. It provides a higher interrupting rating of 35kAIC at 480VAC compared to standard FDB frames.
What wire sizes are supported by the standard lugs?
The factory-installed lugs accommodate wire sizes from 14 AWG up to 1/0 AWG. The terminals are rated for both copper and aluminum conductors.
Can this unit replace older Westinghouse FD3045 breakers?
Yes, Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. A modern Eaton FD3045 is a direct drop-in replacement for older Westinghouse or Cutler-Hammer breakers with the exact same catalog number.
Is this breaker rated for direct current (DC) applications?
Yes, the FD3045 is rated for DC systems up to 250VDC, providing a 10kAIC interrupting capacity for direct current circuits.
Are the trip settings adjustable on the FD3045?
No, this specific model features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous protection without adjustable dials.
What safety checks are required before installing this F-frame breaker?
Always de-energize the panelboard or switchboard before installation. Verify the system voltage and available fault current do not exceed the maximum ratings of 600VAC and 65kAIC at 240VAC.
Can this 3-pole breaker be used in single-phase applications?
Yes, while designed for three-phase systems, a 3-pole breaker can be used in single-phase applications by utilizing two of the poles. Ensure the system voltage does not exceed the breaker limits.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
Eaton / Cutler-Hammer FD3175 - 175A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 4 out of 5 stars
7/13/26
175amp molded case circuit breaker
The breaker we purchased was as advertised. The breaker fit perfectly. We purchased reconditioned breaker and it seems to be working properly, accordingly to the golf course maintenance team that supervises the irrigation system.
Next day shipping came quickly even though the 4th of July was coming.
I wish it came with new installations hardware but that isn’t a deal breaker.
MB
Michael B.
Verified Buyer
Reviewing
Eaton / Cutler-Hammer FD3040 - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
1/7/26
Worked perfectly
This circuit breaker installed as expected and performed flawlessly.
DQ
David Q.
Reviewing
Eaton / Cutler-Hammer FD2080 - 80A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/17/23
A+ Seller
Breaker came as described and was shipped out fast!
OC
Oscar C.
Reviewing
Eaton / Cutler-Hammer FD3175 - 175A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/20/23
Great Service
Totally recommended
ML
Michael L.
Reviewing
Eaton / Cutler-Hammer FD2050 - 50A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/2/22
Quick and Easy
They had what we needed and were able to ship it quickly.