Engineered for industrial power systems, the Eaton FD4225L is a four-pole, 225A molded case circuit breaker from the Series C F-Frame family. This unit mount MCCB includes line and load lugs for secure installation into standalone enclosures, switchboards, and motor control centers. It is replaced by the PDG24G0225TFFJ model. Utilizing a non-interchangeable thermal-magnetic trip unit with long-time and instantaneous (LI) protection, it provides a 35kAIC rating at 480VAC and is HACR rated.
Can the Eaton FD4225L replace older Cutler-Hammer or Westinghouse breakers?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. The FD4225L is a direct replacement for older Cutler-Hammer and Westinghouse breakers that share the exact same catalog number.
What does the L suffix indicate in the FD4225L catalog number?
The L suffix indicates that the circuit breaker is supplied from the factory with standard line and load lugs installed.
Is the FD4225L circuit breaker suitable for reverse feed applications?
Yes. Standard Eaton Series C F-frame thermal magnetic circuit breakers are suitable for reverse feed applications. Ensure you follow all local codes and use an appropriate retaining bracket or hold-down kit when back feeding the breaker.
Can this 4-pole breaker be used in DC voltage systems?
Yes, the FD4225L is rated for use in 250 Vdc systems with a 10 kAIC interrupting rating. When used in DC applications, Eaton requires wiring two poles in series to properly interrupt the direct current arc.
What type of enclosures accept the FD4225L?
This breaker mounts in Eaton Series C F-frame enclosures. It is compatible with NEMA 1, NEMA 3R, NEMA 12, and NEMA 4X enclosures that are specifically sized for 225A, 4-pole F-frame circuit breakers.
Can I install interchangeable trip units in the FD4225L?
No. The FD4225L features a factory-sealed fixed thermal and fixed magnetic trip unit. Standard Series C F-frame breakers do not support field-interchangeable trip units.
What does Unit Mount mean for the FD4225L?
Unit mount indicates that the breaker is designed to be bolted directly to the panel or enclosure backpan, rather than plugging into a busbar system like a plug-on breaker.
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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.