Eaton / Westinghouse EH3020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Quantity
Eaton / Westinghouse EH3020 - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Serving as an exact fit for aging infrastructure, the Eaton EH3020 restores functionality to commercial power systems. This 20-amp, three-pole breaker utilizes proven thermal-magnetic trip technology. The unit installs into classic Eaton and Westinghouse NEHB panelboards. Maintenance professionals select this model as a drop-in substitute for discontinued EHB3020 breakers, avoiding costly panel upgrades. Featuring a 14kAIC rating at 480VAC, this component handles demanding lighting loads.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EH3020-R |
| Series | EH |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse NEHB Panelboards, Eaton NEHB Panelboards |
| Wire Gauge | 14 AWG - 1/0 AWG (Al/Cu) |
| 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 Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, HID Rated |
Product FAQs
5 answersWhich panelboards are compatible with the EH3020 circuit breaker?
The EH3020 is a bolt-on molded case circuit breaker designed specifically for use in legacy Westinghouse and Eaton NEHB panelboards.
Is the Westinghouse EH3020 still manufactured, or is there a modern replacement?
The EH3020 is a legacy E-Frame breaker. The Eaton EHD3020 serves as the modern, exact-match drop-in replacement for this unit in NEHB panelboards.
Can the EH3020 be used in DC electrical systems?
Yes, this thermal-magnetic breaker is rated for DC applications, providing up to 10kA interrupting capacity at 250VDC.
How does the EH3020 connect to the panelboard and load wires?
This breaker features a bolt-on mounting style that secures directly to the panelboard bus on the line side. It comes complete with load side lug terminals that accept 14 AWG to 1/0 AWG aluminum or copper wire.
What type of trip unit does the EH3020 use?
It is equipped with a thermal-magnetic trip unit featuring fixed long-time and fixed instantaneous (LI) trip functions for reliable overcurrent and short-circuit protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 7 reviews.
- TSThomas S.Verified BuyerReviewingSiemens EH3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/6/25Great
Thanks
- JMJim M.ReviewingSiemens EH3B040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/24/23They fit perfectly and saved
They fit perfectly and saved us a lot of money by being able to replace just these breakers
- KHKen H.ReviewingSiemens EH3B030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/12/23Great service
Great service and products fast shipping
- JSJerry S.ReviewingSiemens / ITE EH3B070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/20/22Great Price - Breakers Work Fine
My local Supplier was charging me three times the price for a breaker that i bought on super Breakers.
- MRMatt R.ReviewingSiemens EH3B020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/6/2020 Amp Breaker
Received item quickly and in great shape. Thank you!!!