Rated for 100 amps, this 2-pole molded case circuit breaker provides essential overcurrent protection for commercial and industrial setups. It is specifically designed to mount into obsolete Square D NEHB panelboards using a bolt-on connection. Facilities looking to upgrade to the newer EDB24100 will need to install a compatible NF panelboard. The breaker features a 14kAIC rating at 480Y/277V, HACR certification, and a Visi-Trip indicator to streamline maintenance and troubleshooting.
Which panelboards are compatible with the EHB24100?
This breaker is designed exclusively for use in legacy Square D NEHB panelboards. It features a bolt-on mounting style specific to the bus architecture of this panelboard series.
Can I use an EDB series breaker to replace the EHB24100 in my current panel?
No. While the EDB series is the modern equivalent to the legacy EHB series, EDB breakers are designed for NF series panelboards and will not fit into an NEHB panelboard.
What does the 480/277VAC slash rating indicate for this breaker?
The slash rating indicates the breaker can safely interrupt fault currents on a 480Y/277V solidly grounded wye system where the line-to-ground voltage does not exceed 277V. It is not rated for 480V ungrounded or corner-grounded delta systems.
Can the EHB24100 be used on 120/240V or 240V systems?
Yes. While it is rated for up to 480Y/277VAC, it is fully compatible with 120/240V and 240V systems. When applied at these lower voltages, the interrupting capacity increases to 65kAIC.
Is the Square D EHB series still in active production?
The EHB series is a legacy product line that has been discontinued by the manufacturer. Exact replacements are used to maintain existing NEHB panelboards without requiring a full panel upgrade.
How many panel spaces does the EHB24100 occupy?
As a 2-pole E-frame breaker, it occupies two spaces in an NEHB panelboard. Each pole is 1 inch wide, making the total breaker width 2 inches.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 19 reviews.
Square D EHB24060 - 60A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
2/28/26
President NGE
The quality is excellent, but you need to double check when you order that the corrected one gets delivered
MD
Mitchell D.
Verified Buyer
Reviewing
Square D EHB14020HID - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 4 out of 5 stars
2/4/26
Hard to find
Super breakers has just what I was looking for when no one else did!!
MS
Mike S.
Verified Buyer
Reviewing
Square D EHB34060 - 60A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
11/21/25
Fast reliable service, reasonable prices
I recently ordered the incorrect breakers for a job, but I contacted Drew at SuperBreakers and he got me the correct breakers shipped out that day, which I received the next day. He sent me a label to send the wrong breakers back, and I was quickly refunded a restocking fee that I incurred for my mistake. I was able to get the breakers installed, and the power running to meet the deadline. Not to mention, the price was better than I found elsewhere. Thanks Drew!
I would definitely recommend this company if you need fast, reliable service for your electrical product needs. And I'm sure I will use them again.
Thank you SuperBreakers! Nice job Drew!
DT
David T.
Reviewing
Square D EHB14020 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
12/12/23
Everything worked out perfect thanks
Everything worked out perfect thanks again
GC
GULF C.
Reviewing
Square D EHB34020 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/5/23
Perfect condition
This breaker arrived as advert and timely. Perfect condition. Good working condition