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Eaton / Westinghouse EB2100 Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • Bolt-On
Eaton / Westinghouse EB2100
Molded Case Circuit Breaker
Brand Eaton / Westinghouse
SKU EB2100
Select Item Condition
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  • 100A
  • 2 Pole
  • Bolt-On

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Westinghouse EB2100 3 Pole Circuit Breaker

Eaton / Westinghouse EB2100 - 100A 2 Pole Molded Case Circuit Breaker

Re-Certified

$376.19 In Stock

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Description

Serving as a direct replacement for aging commercial systems, the Eaton EB2100 is a 2-pole, 100A molded case breaker. It features thermal-magnetic trip technology for reliable protection. This E-frame unit mounts into legacy Westinghouse F-Frame and Eaton Pow-R-Line C panelboards. For modern upgrades, it is officially replaced by the EHD2100. Rated 10kAIC at 240VAC, it includes load side lugs and utilizes AB De-Ion arc extinction to safely interrupt electrical faults.

Specifications

Key specifications
Brand Eaton / Westinghouse
Part Number EB2100
Series EB
Amperage 100A
Poles 2
Mounting Style Bolt-On
Voltage 240VAC, 125/250VDC
Phase 1
AIC Rating 10kA @ 240VAC, 5kA @ 125/250VDC
Fit and installation
Terminal Type Lugs
For Use With Eaton Pow-R-Line C Panelboards, Westinghouse F-Frame Panelboards
Wire Gauge 14-1/0 AWG (Cu/Al)
Max Wire 1/0 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 Load Side Lugs Included
Standards CSA C22.2 No. 5, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C

Product FAQs

7 answers
Which panelboards accept the EB2100 circuit breaker?

This legacy E-Frame breaker is designed to bolt directly into classic Westinghouse F-Frame panelboards and Eaton Pow-R-Line C panelboards.

What is the direct modern replacement for the obsolete EB2100?

The Eaton EHD2100 is the official modern cross-reference for the EB2100. It provides the same form factor, mounting style, and electrical ratings for upgrading older systems.

What wire gauge range do the terminals on the EB2100 accommodate?

The standard load side lugs accept either copper or aluminum conductors ranging from 14 AWG to 1/0 AWG.

Is the EB2100 rated for direct current (DC) systems?

Yes, in addition to its 240VAC rating, this breaker is rated for 125/250VDC applications with an interrupting capacity of 5kAIC.

Can the thermal or magnetic trip settings be adjusted on this breaker?

No, the EB2100 features a non-interchangeable thermal-magnetic trip unit with fixed long-time and instantaneous (LI) functions.

What arc extinction technology is used in the EB2100?

This breaker utilizes AB De-Ion arc extinction technology to safely clear faults and protect downstream equipment during short circuits.

Does the EB2100 require a mounting kit for panelboard installation?

It features a standard bolt-on connection that fastens directly to the panelboard bus. No specialized mounting kits are required for compatible F-Frame or Pow-R-Line C panels.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 6 reviews
Rating
Ratings
6 reviews
  • TH
    Terry H.
    Verified Buyer
    Reviewing
    Eaton / Westinghouse EB3100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/15/26
    no issues

    As described, arrived quickly. As long as your homework is good the come through. They can also cross reference for you too.

  • TM
    TROY M. C.
    Verified Buyer
    Reviewing
    Eaton / Westinghouse EB1020 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/6/26
    westinghouse breaker for the very best

    it work so good to turn on and off very satisfaction great for OCP. would buy again 10/10

  • JS
    James S.
    Verified Buyer
    Reviewing
    Eaton / Westinghouse EB3100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/4/25
    breaker

    Ship time was fair; breaker fits & functions.

  • JA
    Jerry A.
    Flag of United States
    Reviewing
    Eaton / Westinghouse EB1020 - 20A 1 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/1/20
    GE Braker

    Re-certified breaker was the exact match for the old one. Thank you for the quick turnaround.

    jerry-

  • RB
    Robert B.
    Flag of United States
    Reviewing
    Eaton / Westinghouse EB3040 - 40A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/25/19
    The right one

    Fit like a glove, works great