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Eaton / Westinghouse EHB3030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Eaton / Westinghouse
EHB3030
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
EHB3030
Quantity
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Eaton / Westinghouse EHB3030 - 30A 3 Pole Molded Case Circuit Breaker
New
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Eaton / Westinghouse EHB3030 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EHB3030 |
| Series | EHB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 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 Lugs Included |
| Standards | UL 489, NEMA AB 1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Quantity
Eaton / Westinghouse EHB3030 - 30A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EHB3030-R |
| Series | EHB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 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 Lugs Included |
| Standards | UL 489, NEMA AB 1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
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Description
Part of the legacy E-Frame lineup, this 30-amp molded case circuit breaker provides essential thermal-magnetic protection for commercial and industrial power systems. It installs into classic Westinghouse panelboards, offering an exact fit without the need for aftermarket adapters. While the original EHB series is discontinued and officially replaced by the EHD3030, this exact-match component maintains your existing panel's UL listing.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EHB3030 |
| Series | EHB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards |
| Wire Gauge | 14-8 AWG (Cu/Al) |
| Max Wire | 8 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 Lugs Included |
| Standards | UL 489, NEMA AB 1, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
6 answersWhat type of panelboards accept the EHB3030 breaker?
This bolt-on circuit breaker is designed for use in legacy Westinghouse panelboards and compatible Eaton Cutler-Hammer enclosures that accept E-Frame components. It bolts directly to the bus for secure installation.
Are line and load lugs included with this breaker?
No. As a bolt-on circuit breaker, the line side mounts directly to the panelboard bus without lugs. Mechanical lug terminals are only provided on the load side.
What wire size is compatible with the EHB3030 load terminals?
The load-side lugs accept 14 AWG to 8 AWG copper or aluminum (Cu/Al) conductors.
Is the EHB3030 circuit breaker obsolete?
Yes, the original Westinghouse EHB series is obsolete. Eaton officially supports the EHD3030 as the direct physical and electrical replacement for this model.
Can the EHB3030 be used in DC applications?
Yes, this thermal-magnetic breaker is rated for DC electrical systems up to 250VDC, providing a 10kA interrupting capacity for direct current applications.
Are the trip settings adjustable on the EHB3030?
No. This breaker is built with a fixed thermal and fixed magnetic trip unit, providing standard long-time and instantaneous (LI) protection without field adjustability.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 19 reviews.
Total 5 star reviews: 16 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
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