Part of the E-Frame family, this 110A three-phase breaker provides robust overcurrent protection for commercial and industrial electrical systems. It installs seamlessly into Square D NF series panelboards using a secure bolt-on connection, ensuring stable performance under load. Rated for 18 kAIC at 480Y/277V, the unit features a Visi-Trip indicator for rapid fault identification and is HACR rated for HVAC equipment compatibility.
Which panelboards are compatible with the EDB34110 circuit breaker?
This E-Frame breaker is designed specifically for Square D NF series panelboards. It secures directly to the panel bus using a bolt-on connection.
What are the direct replacements if a higher interrupting rating is required?
The EGB34110 and EJB34110 are exact dimensional upgrades for this breaker. The EGB model offers a 35kA interrupting rating, while the EJB provides 65kA at 480Y/277VAC.
Can the EDB34110 be used on a straight 480V Delta system?
No. Circuit breakers with a slash voltage rating like 480Y/277VAC are intended strictly for solidly grounded wye systems. The line-to-ground voltage must not exceed the lower value of 277V.
Can I install this E-Frame breaker in an NQ or I-Line panelboard?
No. NQ panelboards are rated up to 240V and require QO or QOB series breakers. I-Line panelboards require breakers with specific plug-on jaw assemblies. The EDB series is exclusively for NF panels.
How many mounting spaces does this breaker occupy in an NF panel?
The EDB34110 requires three standard circuit spaces, occupying one space per pole along the NF panelboard bus.
Does this breaker require a separate lug kit for installation?
No. Mechanical load-side lugs are factory-installed and included with the breaker. They are dual-rated for terminating either copper or aluminum conductors.
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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 111 reviews.
5.0
Rated 5.0 out of 5 stars
Based on 111 reviews
5
Rated out of 5 stars
109
Total 5 star reviews: 109
4
Rated out of 5 stars
2
Total 4 star reviews: 2
3
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0
Total 3 star reviews: 0
2
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Total 2 star reviews: 0
1
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Total 1 star reviews: 0
Reviews Summary
Generated by AI from 87 most recent customer reviews
Last updated 8/7/25
Customers say these circuit breakers arrive quickly and function as expected. Many reviews mention competitive pricing and reliable shipping. The ordering process receives praise for its simplicity, with users noting the website is easy to navigate. Frequent comments address product availability and proper packaging. While some note receiving older stock items, users consistently report the breakers work effectively.
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
DH
Dave H.
Verified Buyer
Reviewing
Square D EDB34020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/6/26
Brfeaker
good service and quick ship
RP
Ronica P.
Verified Buyer
Reviewing
Square D EDB34015 - 15A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/30/26
Great Experience from Start to Finish
Great experience! My order arrived on time and everything was exactly as expected. The items were packaged securely, and everything arrived in perfect condition. I appreciate the care taken with packaging and the prompt delivery. I would definitely order from them again!
TB
Theresa B.
Verified Buyer
Reviewing
Square D EDB34015 - 15A 3 Pole Miniature Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/17/26
Works as expected
Breaker worked as expected. Price was good and shipping and delivery were expedient. No complaints