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Eaton / Westinghouse E2020 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Eaton / Westinghouse
E2020
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
E2020
Quantity
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Eaton / Westinghouse E2020 - 20A 2 Pole Molded Case Circuit Breaker
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Description
Mounts into classic Westinghouse panelboards to provide immediate restoration of commercial electrical service. The E2020 is a 20-amp, two-pole legacy molded case circuit breaker that maintains the original specifications of older installations. Featuring a robust bolt-on design, it integrates perfectly with Eaton Pow-R-Line and AB De-Ion panels without requiring modifications. For future upgrades, it is replaced by the EHD2020. It offers a standard interrupting capacity of 7 kAIC at 240VAC.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | E2020-R |
| Series | E |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 7kA @ 240VAC, 5kA @ 125/250VDC |
| Frame Type | E |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line Panelboards, AB De-Ion Panels |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Standard Interrupting Capacity |
Product FAQs
6 answersWhich panelboards accept the E2020 circuit breaker?
The E2020 is designed to bolt into legacy Westinghouse panelboards, Eaton Pow-R-Line panelboards, and AB De-Ion panels.
What is the modern replacement for the legacy E2020 breaker?
For future upgrades or replacements, the Eaton EHD2020 is the recommended alternative. The EHD2020 offers a higher interrupting capacity of 18kAIC at 240VAC.
Is the E2020 rated for direct current (DC) systems?
Yes, this breaker is rated for DC applications. It carries a 5kA interrupting capacity at 125/250VDC, making it suitable for specific non-inductive DC circuits.
What wire sizes and materials are compatible with the E2020 terminals?
The factory lugs accept 14 AWG through 1/0 AWG conductors. Both copper (Cu) and aluminum (Al) wires are supported. Always verify the specific torque requirements printed on the breaker label before terminating.
How does the thermal-magnetic trip unit function on the E2020?
The breaker uses a fixed thermal-magnetic (LI) trip unit. The thermal component provides long-time delay protection against sustained overloads, while the magnetic component provides instantaneous tripping during short-circuit faults.
Can the E2020 be installed in 480V or 600V systems?
No, the E2020 is strictly rated for a maximum of 240VAC or 125/250VDC. It does not have the internal clearances or interrupting capacity for 480V or 600V applications.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 25 reviews.
Total 5 star reviews: 24 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 30 most recent customer reviews
Last updated 8/15/25
Customers say this electrical breaker meets their expectations in terms of functionality and performance. Many reviews mention quick delivery times and competitive pricing. While one user reports voltage detection issues, most find these units work effectively. Common feedback includes satisfaction with product condition upon arrival and straightforward installation. Reviews indicate availability of specialty models that are often hard to find through local suppliers.
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Rating
25 reviews
- MGMike G.Rated 5 out of 5 stars11/27/23Just what we needed and
Just what we needed and fast shipping
- TETimothy E.ReviewingSquare D HU364 Safety SwitchI recommend this productRated 5 out of 5 stars5/9/22quick response!!!!
quick response!!!!
- DGDavid G.ReviewingSquare D HU362 Safety SwitchI recommend this productRated 5 out of 5 stars4/13/22Great service and fast shipping
Great service and fast shipping
- WEWarren E.ReviewingSquare D HU361 Safety SwitchI recommend this productRated 5 out of 5 stars3/1/22600v Disconnect
They have GREAT Inventory! Even my Local suppliers did not have them in stock.
- SKSaki K.ReviewingSquare D HU361 Safety SwitchI recommend this productRated 5 out of 5 stars2/20/22Good product
Good product in good price