Eaton / Westinghouse EA2020 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Quantity
Eaton / Westinghouse EA2020 - 20A 2 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Maintaining older commercial infrastructure is simple with the Eaton EA2020, a 2-pole, 20A legacy molded case circuit breaker. It provides essential thermal-magnetic protection for 240VAC and 125/250VDC industrial circuits. This bolt-on MCCB installs seamlessly into vintage Westinghouse panelboards, eliminating the need for complex retrofits. For newer installations, it is commonly replaced by the EHD2020.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EA2020-R |
| Series | EA |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 125/250VDC |
| Frame Type | EA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Eaton Panelboards (Retrofit) |
| 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 Lugs Included |
| Standards | NEMA AB-1, UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Standard Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
6 answersWhat is the direct modern replacement for the legacy Westinghouse EA2020?
The Eaton EHD2020 is the modern Series C equivalent for this legacy E-frame breaker. The EHD2020 shares the same 20-amp, 2-pole configuration and bolt-on mounting, making it the standard upgrade path for older Westinghouse systems.
Will the EA2020 fit into modern Eaton Pow-R-Line panelboards?
While originally designed for vintage Westinghouse CDP and FDP panelboards, the EA2020 can be installed in modern Eaton Pow-R-Line (PRL) systems. However, doing so typically requires a specific Eaton retrofit kit to adapt the legacy E-frame footprint to the newer chassis.
What type of connection is required to install the EA2020?
This breaker utilizes a bolt-on connection to the panelboard busbar. Because it bolts directly to the bus, it provides a highly secure, vibration-resistant contact that is required in many commercial and industrial environments, unlike standard residential plug-on breakers.
Can the trip curve on the EA2020 be adjusted for high-inrush loads?
No, the EA2020 utilizes a fixed thermal-magnetic trip unit. The long-time and instantaneous trip thresholds are permanently set at the factory. If your application requires adjustable trip settings for motor starting or high-inrush loads, you will need to upgrade to a breaker with an electronic trip unit.
Are load-side lugs included with the EA2020?
Yes, standard mechanical lugs are included on the load side, accepting wire sizes from 14 AWG up to 1/0 AWG. When terminating conductors, always verify that the wire material matches the lug rating and apply the correct torque specified on the breaker faceplate.
Is the EA2020 interchangeable with modern F-frame circuit breakers?
No, the EA2020 is built on the legacy Westinghouse E-frame platform. While Eaton's modern Series C F-frame breakers (like the EHD series) are the designated replacements for E-frame breakers, they have different physical dimensions and require specific mounting hardware when swapping them in older enclosures.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- CGClaudia G.Verified BuyerReviewingEaton / Westinghouse EA3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/20/26Good
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