Providing reliable 3-phase power control, the Eaton EDB3100 is a 100A, 3-pole molded case circuit breaker. It is an essential component for commercial and industrial electrical systems requiring robust overcurrent defense. This Series C F-Frame breaker is compatible with Pow-R-Line 1a, 2a, and 3a panelboards. It also functions as a substitute for discontinued EB3100 models. With a 22kAIC rating at 240VAC, it includes reverse feed capability and fixed thermal-magnetic trip units.
What panelboards are compatible with the Eaton EDB3100 circuit breaker?
The EDB3100 is designed for use in Eaton Pow-R-Line 1a, 2a, and 3a panelboards, as well as Series C F-Frame enclosures.
Can the EDB3100 be used to replace an older FDB3100 breaker?
Yes, the EDB3100 shares the same physical dimensions as the FDB3100. The EDB3100 offers a higher interrupting rating of 22kAIC at 240VAC, compared to the 14kAIC rating of the FDB3100.
Are EDB, FDB, FD, and HFD breakers the same physical size?
Yes, all of these breakers are part of the Eaton Series C F-Frame family. Assuming they have the same number of poles, they share the exact same physical dimensions and mount identically in panelboards.
What are the standard lugs used on the EDB3100?
The EDB3100 uses standard pressure type terminals, catalog number 3T100FB. These steel lugs accept 14 AWG to 1/0 AWG copper or aluminum wire.
What are the torque specifications for the EDB3100 terminals?
For the standard 3T100FB lugs, the tightening torque depends on the wire size: 35 in-lb for 14 to 10 AWG, 40 in-lb for 8 AWG, 45 in-lb for 6 to 4 AWG, and 50 in-lb for 3 to 1/0 AWG.
What are the physical dimensions of the EDB3100?
This 3-pole F-Frame breaker measures 6.00 inches in height, 4.13 inches in width, and 3.38 inches in depth.
Is the EDB3100 rated for DC applications?
Yes, the EDB3100 is rated for up to 125VDC with an interrupting capacity of 10kAIC, making it suitable for specific direct current applications.
What does the LI trip function code mean on the EDB3100?
The LI designation indicates that the thermal magnetic trip unit provides Long-Time (overload) and Instantaneous (short circuit) protection. Both the thermal and magnetic trip settings are fixed on this breaker.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 114 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 114 reviews
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Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 10/21/26
Customers say these breakers perform as expected and arrive quickly. Fast shipping and competitive pricing are frequently mentioned, with many noting significant savings compared to local suppliers. Customers appreciate the easy-to-use website, responsive sales representatives, and reliable delivery. Products consistently arrive in good condition and well-packaged. Common feedback highlights dependable service, wide product availability, and seamless ordering processes. Customers report using this supplier repeatedly for their breaker needs.
Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/20/26
Breaker ordered and delivered.
Called in as a last attempt because my regular supplier didn't have any of these in stock. I got a very friendly salesperson, and they sold me a new breaker for less than half of what my standard supplier would have. Definitely going here again.
AM
Alex M.
Verified Buyer
Reviewing
Square D EDB34070 - 70A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/19/26
Another Perfect Order
SuperBreakers is an amazing resource for the company I work for. Their prices are very competitive to local suppliers and lower prices than we can get in our work area.
Thank you SuperBreakers!
JL
Jeffery L.
Verified Buyer
Reviewing
Square D EDB34125 - 125A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
10/16/26
Square D Breakers
Good company & prices reasonable.
CO
Chris O.
Verified Buyer
Reviewing
Square D EDB34125 - 125A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/4/26
Fast and easy
Locating the product, checking out and delivery were top notch!
JD
John D.
Verified Buyer
Reviewing
Square D EDB14020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/16/26
Great place
My rep has been very responsive and helpful. He always gives me a good deal also