Eaton / Westinghouse EH1020 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Quantity
Eaton / Westinghouse EH1020 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for legacy commercial and industrial applications, the Eaton EH1020 provides 1-pole, 20-amp circuit protection. It delivers reliable thermal-magnetic tripping with a 14kAIC rating at 277VAC and carries a HACR rating for HVAC equipment. This bolt-on breaker installs into older Westinghouse and Eaton NEHB panelboards without requiring adapters. As a discontinued E-Frame model, it functions as an exact replacement component and substitutes for EHB1020 and EHD1020 breakers.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | EH1020-R |
| Series | EH |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 14kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | EH |
|---|---|
| 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, SWD Rated, HID Rated |
Product FAQs
6 answersWhich panelboards are compatible with the EH1020 circuit breaker?
The EH1020 is a bolt-on circuit breaker designed specifically for use in legacy Westinghouse and Eaton NEHB panelboards.
What wire sizes and materials are accepted by the lugs on the EH1020?
The terminal lugs on this breaker accept wire gauges from 14 AWG up to 1/0 AWG and are rated for both aluminum and copper (Al/Cu) conductors.
Can the EH1020 be used in DC voltage applications?
Yes, in addition to its 277VAC rating, this thermal-magnetic breaker is rated for 125VDC applications with an interrupting capacity of 10kAIC.
Is the EH1020 a direct replacement for older Westinghouse EH breakers?
Yes, this breaker serves as an exact replacement for legacy Westinghouse EH-frame breakers used in NEHB panelboards. Eaton acquired the Westinghouse distribution equipment division and continues to support these legacy frames.
Does the EH1020 require any special mounting hardware for NEHB panels?
No, it features a standard bolt-on connection that installs directly onto the bus of Eaton and Westinghouse NEHB panelboards without the need for additional adapters.
What does the LI trip function code mean on the EH1020?
The LI designation indicates that the breaker provides Long-Time (thermal) and Instantaneous (magnetic) trip functions for standard overload 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!!!