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Eaton / Westinghouse E2090 Molded Case Circuit Breaker
- 90A
- 2 Pole
- Bolt-On
Eaton / Westinghouse
E2090
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
E2090
Quantity
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Eaton / Westinghouse E2090 - 90A 2 Pole Molded Case Circuit Breaker
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Description
Part of the trusted legacy E-frame series, the Eaton E2090 is a 2-pole, 90A molded case circuit breaker designed for commercial environments. It delivers standard interrupting capacity to safeguard critical equipment from electrical faults without requiring a complete system overhaul. This bolt-on breaker is fully compatible with classic Westinghouse and Eaton panelboards.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | E2090-R |
| Series | E |
| Amperage | 90A |
| 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 Panelboards |
| 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 are compatible with the E2090 circuit breaker?
The E2090 is a legacy bolt-on breaker designed specifically for commercial Westinghouse and Eaton panelboards that accept E-frame breakers. It is not compatible with standard residential plug-on load centers.
What is the modern replacement for the legacy Westinghouse E2090?
The Eaton EHD2090 is the designated modern cross-reference to replace the legacy Westinghouse E2090. It bolts into the same panelboard spaces while offering updated performance.
Can the E2090 be used in direct current (DC) systems?
Yes, the E2090 is rated for use in 125/250VDC applications, where it provides a 5 kAIC interrupting capacity, in addition to its standard 240VAC rating.
What wire sizes are supported by the E2090 terminals?
The breaker is equipped with standard lugs that accept wire gauges from 14 AWG up to 1/0 AWG. The terminals are dual-rated for safe use with both copper (Cu) and aluminum (Al) conductors.
What type of trip protection does the E2090 provide?
It features a non-interchangeable thermal-magnetic trip unit. This provides fixed long-time (thermal) protection against overloads and fixed instantaneous (magnetic) protection against short circuits.
Does the E2090 plug into the bus bar?
No, the E2090 features a bolt-on connection type. It must be securely bolted directly to the panelboard bus, which is typical for commercial-grade E-frame breakers.
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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