The FD2020L is a 2-pole, 20-amp molded case circuit breaker designed for heavy-duty industrial power distribution. As part of the Eaton Series C F-Frame lineup, it handles demanding electrical loads up to 600VAC. Unlike standard bolt-on models, this unit mount breaker includes both line and load side lugs for standalone or specialized enclosure mounting. It integrates easily into motor control centers and switchboards. Engineered with a thermal-magnetic trip unit, it delivers 35kAIC at 480V.
What does the L suffix indicate in the FD2020L catalog number?
The L signifies that the breaker comes with factory-installed line and load lugs. Without this suffix, the breaker is supplied without terminals.
Which enclosures are compatible with the FD2020L breaker?
This F-frame breaker is designed for use in Eaton Series C panelboards, motor control centers, and switchboards.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed lugs accept 14 AWG through 1/0 AWG copper or aluminum wire.
Can the FD2020L be used in direct current systems?
Yes, this breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 10kA.
Are the trip settings adjustable on this breaker?
No, this breaker features a fixed thermal and fixed magnetic trip unit. Neither the long-time nor the instantaneous trip functions can be adjusted.
What is the difference between the FD2020L and the FDB2020L?
The FD2020L has a higher interrupting rating of 35kA at 480VAC, whereas the standard FDB frame is rated for 14kA at 480VAC. The FD2020L can physically replace an FDB2020L, provided the system requires or allows the higher interrupting capacity.
How is the FD2020L mounted in a panel?
This is a unit mount, feed-thru circuit breaker. It is designed to be bolted directly to the chassis or mounting pan rather than plugging onto a busbar.
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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.