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Eaton / Westinghouse EHB3020L Molded Case Circuit Breaker

  • 20A
  • 3 Pole
  • Unit Mount
Eaton / Westinghouse EHB3020L
Molded Case Circuit Breaker
Brand Eaton / Westinghouse
SKU EHB3020L
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  • 20A
  • 3 Pole
  • Unit Mount

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Westinghouse EHB3020L 3 Pole Circuit Breaker

Eaton / Westinghouse EHB3020L - 20A 3 Pole Molded Case Circuit Breaker

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$175.51 In Stock

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Description

Part of the legacy Westinghouse and Cutler-Hammer E-Frame family, this 20-amp unit mount breaker provides reliable thermal-magnetic protection for commercial and industrial facilities. It features a non-interchangeable trip unit with fixed long-time and instantaneous functions. Designed for cable-in/cable-out applications, the device includes factory-installed line and load lugs. While this specific model is discontinued, modern upgrades typically use the EHD3020L substitute.

Specifications

Key specifications
Brand Eaton / Westinghouse
Part Number EHB3020L-R
Series EHB
Amperage 20A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480Y/277VAC, 250VDC
Phase 3
AIC Rating 18kA @ 240VAC, 14kA @ 480Y/277VAC, 10kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Individual Enclosures, Cable-In/Cable-Out Applications
Wire Gauge 14-10 AWG (Cu/Al)
Max Wire 10 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Line and Load Lugs Included, Mounting Hardware
Standards CSA C22.2 No. 5, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Non-Interchangeable Trip

Product FAQs

5 answers
Is the Westinghouse EHB3020L still in production?

The original Westinghouse EHB3020L is a legacy E-Frame breaker and is no longer manufactured. For modern upgrades, the Eaton EHD3020L is typically used as a direct substitute for 480VAC unit-mount applications.

What does the L suffix indicate on the EHB3020L catalog number?

The L suffix designates that this breaker is a unit-mount model equipped with factory-installed lugs on both the line and load sides. It is designed for cable-in/cable-out applications and individual enclosures rather than bolting directly to a panelboard bus.

Can this breaker be installed in Eaton Pow-R-Line panelboards?

No. Because the EHB3020L features line-side lugs for feed-thru wiring, it cannot be bolted onto a standard panelboard bus. You would need the standard EHB3020 without the L suffix for Pow-R-Line or legacy Westinghouse panelboard installations.

Can the EHB3020L be used in DC applications?

Yes, this breaker is rated for use in DC systems up to 250VDC, providing a 10kA interrupting capacity for compatible direct current applications.

What wire sizes are accepted by the terminals on this breaker?

The line and load lugs are designed to accept 14 AWG to 10 AWG copper or aluminum conductors. Ensure proper torque specifications are followed during installation for secure connections.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 19 reviews
Total 5 star reviews: 16
Total 4 star reviews: 3
Total 3 star reviews: 0
Total 2 star reviews: 0
Total 1 star reviews: 0
Rating
Ratings
19 reviews
  • TS
    Thomas S.
    Verified Buyer
    Reviewing
    Square D EHB24060 - 60A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/28/26
    President NGE

    The quality is excellent, but you need to double check when you order that the corrected one gets delivered

  • MD
    Mitchell D.
    Verified Buyer
    Reviewing
    Square D EHB14020HID - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    2/4/26
    Hard to find

    Super breakers has just what I was looking for when no one else did!!

  • MS
    Mike S.
    Verified Buyer
    Reviewing
    Square D EHB34060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/21/25
    Fast reliable service, reasonable prices

    I recently ordered the incorrect breakers for a job, but I contacted Drew at SuperBreakers and he got me the correct breakers shipped out that day, which I received the next day. He sent me a label to send the wrong breakers back, and I was quickly refunded a restocking fee that I incurred for my mistake. I was able to get the breakers installed, and the power running to meet the deadline. Not to mention, the price was better than I found elsewhere. Thanks Drew!

    I would definitely recommend this company if you need fast, reliable service for your electrical product needs. And I'm sure I will use them again.

    Thank you SuperBreakers! Nice job Drew!

  • DT
    David T.
    Flag of United States
    Reviewing
    Square D EHB14020 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/12/23
    Everything worked out perfect thanks

    Everything worked out perfect thanks again

  • GC
    GULF C.
    Flag of United States
    Reviewing
    Square D EHB34020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/5/23
    Perfect condition

    This breaker arrived as advert and timely. Perfect condition. Good working condition