Square D EHB340701082 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
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Square D EHB340701082 - 70A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Designed for commercial distribution systems, the EHB340701082 delivers reliable 70A overcurrent protection with the added functionality of a factory-installed 120VAC shunt trip. This E-frame molded case circuit breaker installs into Square D NEHB panelboards, serving as a critical component for legacy infrastructure. While the EHB series is discontinued, facilities can upgrade to the EDB34070 if transitioning to a modern NF panelboard.Specifications
| Brand | Square D |
|---|---|
| Part Number | EHB340701082-R |
| Series | EHB |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D NEHB Panelboards |
| Wire Gauge | 4 AWG - 2/0 AWG (Cu/Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
7 answersWhat does the 1082 suffix indicate on the EHB340701082 catalog number?
The 1082 suffix designates that the breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely by applying a 120V control signal, which is commonly used for emergency stop or automated shutdown circuits.
Can the EHB340701082 be installed in a modern Square D NF panelboard?
No, this legacy E-frame breaker is designed exclusively for older NEHB panelboards. The busbar configuration in NF panels requires EDB, EGB, or EJB series breakers.
What is the modern equivalent if I am replacing an entire NEHB panelboard?
If you are upgrading a facility to a current Square D NF panelboard, the EDB34070 is the modern 70A, 3-pole replacement. Keep in mind that EDB breakers cannot be retrofitted into existing NEHB panels.
How is the EHB340701082 secured to the panelboard bus?
It utilizes a bolt-on connection specific to NEHB interiors. This bolted joint ensures a reliable, low-resistance electrical connection that withstands thermal cycling and vibration in commercial distribution systems.
What are the acceptable wire sizes for the EHB340701082 lugs?
The standard mechanical lugs accommodate 4 AWG to 2/0 AWG copper or aluminum conductors. Electricians must ensure the wire is properly torqued according to the label instructions to prevent terminal overheating.
Does the EHB340701082 include a visual trip indicator?
Yes, it features the Square D Visi-Trip mechanism. When the breaker trips due to an overcurrent or short circuit, a red indicator appears in the window, helping maintenance personnel quickly identify the faulted circuit.
How does the interrupting capacity of the EHB340701082 change with system voltage?
The breaker is rated for 65kA at 240VAC, but the interrupting capacity decreases to 14kA when applied at 480Y/277VAC. You must verify that the available fault current at your specific operating voltage does not exceed these limits.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 19 reviews.
- TSThomas S.Verified BuyerReviewingSquare D EHB24060 - 60A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/28/26President NGE
The quality is excellent, but you need to double check when you order that the corrected one gets delivered
- MDMitchell D.Verified BuyerReviewingSquare D EHB14020HID - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars2/4/26Hard to find
Super breakers has just what I was looking for when no one else did!!
- MSMike S.Verified BuyerReviewingSquare D EHB34060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/21/25Fast 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!
- DTDavid T.ReviewingSquare D EHB14020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/12/23Everything worked out perfect thanks
Everything worked out perfect thanks again
- GCGULF C.ReviewingSquare D EHB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/5/23Perfect condition
This breaker arrived as advert and timely. Perfect condition. Good working condition