Designed for heavy-duty applications, this 80A thermal-magnetic breaker provides essential long-time and instantaneous protection for commercial systems. This device mounts into Square D NF panelboards using a robust bolt-on connection. Factory-installed load side lugs accommodate 14-2/0 AWG copper or 12-2/0 AWG aluminum wire. With an interrupting capacity of 18 kAIC at 480Y/277V, it offers excellent fault clearing and includes a Visi-Trip indicator to simplify maintenance.
What panelboards are compatible with the Square D EDB24080 circuit breaker?
The EDB24080 is a bolt-on circuit breaker designed specifically for use in Square D NF series panelboards. It is not compatible with NQ or QO panelboards.
What is the recommended wire size and material for the EDB24080 lugs?
The factory lugs on this breaker accept 14 to 2/0 AWG copper (Cu) wire or 12 to 2/0 AWG aluminum (Al) wire.
What are the tightening torque specifications for the EDB24080 terminals?
The required torque depends on the wire gauge. For 14 to 10 AWG wire, tighten the lugs to 34.5 lb-in. For 8 to 2/0 AWG wire, tighten to 49.6 lb-in.
Can I upgrade the EDB24080 if my system requires a higher interrupting rating?
Yes. The EDB, EGB, and EJB series share the same physical footprint for NF panelboards. You can replace the EDB24080 (18kAIC at 480Y/277VAC) with an EGB24080 (35kAIC) or an EJB24080 (65kAIC) if a higher fault current rating is required.
Is the EDB24080 rated for direct current (DC) applications?
Yes, in addition to its alternating current (AC) ratings, this thermal-magnetic breaker is rated for up to 125VDC.
What type of trip unit does the EDB24080 use?
It features a fixed thermal-magnetic trip unit that provides both long-time (L) overload protection and instantaneous (I) short-circuit protection.
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Shipping
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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