Eaton / Cutler-Hammer EHB1070 Molded Case Circuit Breaker
- 70A
- 1 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer EHB1070 - 70A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed for commercial distribution, this 70A, 1-pole MCCB belongs to Eaton's E-Frame series. It delivers reliable thermal-magnetic protection for 277VAC circuits. The bolt-on configuration installs into Eaton Pow-R-Line C and older Westinghouse panelboards. For facilities updating infrastructure, it is replaced by the EHD1070. With a 14kAIC interrupting capacity at 277VAC, it handles standard fault conditions safely. The breaker is HACR rated for dedicated heating and cooling equipment.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | EHB1070 |
| Series | EHB |
| Amperage | 70A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | EHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Westinghouse F-Frame Panelboards |
| Wire Gauge | 14-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lug Terminals |
| Standards | UL 489, CSA C22.2 No. 5.1, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
8 answersWhich panelboards are compatible with the EHB1070 circuit breaker?
This breaker is designed to mount into Eaton Pow-R-Line C Panelboards and legacy Westinghouse F-Frame Panelboards.
How is the EHB1070 installed into the panelboard?
It utilizes a bolt-on connection type, meaning it fastens directly to the panelboard bus bars with screws for a secure, vibration-resistant installation.
What wire gauges are accepted by the terminals on this breaker?
The standard lugs accommodate wire sizes ranging from 14 AWG up to 1/0 AWG.
Can I use aluminum wiring with the EHB1070?
Yes, the standard lugs on this breaker are rated for both Copper (Cu) and Aluminum (Al) conductors.
What type of trip unit does the EHB1070 use?
It features a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) functions to protect against both sustained overloads and sudden short circuits.
Why is this breaker associated with Eaton, Cutler-Hammer, and Westinghouse?
Eaton acquired the Westinghouse electrical distribution business and Cutler-Hammer. Because of this history, the EHB1070 can be found branded under all three names but retains the exact same physical and electrical characteristics.
Is the EHB1070 suitable for direct current (DC) applications?
Yes, in addition to alternating current (AC) systems, this breaker is rated for use in DC circuits up to 125VDC.
What is the purpose of the instantaneous trip function on this breaker?
The fixed magnetic instantaneous trip function is designed to open the circuit immediately in the event of a severe short circuit, preventing damage to the electrical system and minimizing fire risks.
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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