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Eaton / Westinghouse FA3020PF Molded Case Circuit Breaker

  • 20A
  • 3 Pole
  • Bolt-On
Eaton / Westinghouse FA3020PF
Molded Case Circuit Breaker
Brand Eaton / Westinghouse
SKU FA3020PF
Select Item Condition
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  • 20A
  • 3 Pole
  • Bolt-On

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Eaton / Westinghouse FA3020PF - 20A 3 Pole Molded Case Circuit Breaker

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$533.23 No Stock

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Description

Built for industrial power management, this 20-amp molded case breaker offers dependable long-time and instantaneous trip functions. Designed to fit into traditional Westinghouse panelboards, it also accommodates Eaton Pow-R-Line C configurations. Facility managers use this exact replacement to maintain existing setups without adapters, though it is often replaced by the FD3020.

Specifications

Key specifications
Brand Eaton / Westinghouse
Series FA
Amperage 20A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Westinghouse Panelboards, Motor Control Centers, Switchboards, Eaton Pow-R-Line C 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
Accessories Load Side Lug
Standards CSA C22.2 No. 5, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed

Product FAQs

6 answers
What equipment is the FA3020PF circuit breaker designed to fit?

This bolt-on breaker is compatible with legacy Westinghouse panelboards, motor control centers, and switchboards, as well as Eaton Pow-R-Line C panelboards.

What wire sizes are accepted by the lugs on the FA3020PF?

The factory-installed lugs accept copper or aluminum conductors ranging from 14 AWG to 1/0 AWG.

Can the FA3020PF be used in DC applications?

Yes, this thermal-magnetic breaker is rated for up to 250VDC with an interrupting capacity of 10kAIC, making it suitable for specific direct current systems.

Is the Westinghouse FA3020PF the same as the Eaton FA3020PF?

Yes. Eaton acquired the Westinghouse distribution and control business. Breakers marked as Eaton, Cutler-Hammer, or Westinghouse with the FA3020PF catalog number are physically and electrically identical.

Are the trip settings adjustable on the FA3020PF?

No. This breaker features a thermal-magnetic trip unit with fixed long-time and fixed instantaneous (LI) trip functions. The settings cannot be adjusted in the field.

How does the FA3020PF detect overcurrents?

It uses a thermal-magnetic trip mechanism. The thermal component responds to sustained overloads, while the magnetic component provides instantaneous tripping during short circuits.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 70 reviews
Reviews Summary
Customers say this circuit breaker matches its description, fits perfectly, and works as expected. Many reviews highlight fast shipping and quick delivery times, with several noting orders arrived within days. Users appreciate the product condition, describing refurbished units as appearing new without wear or marks. Common feedback addresses competitive pricing compared to local suppliers and the overall value proposition. Customers report straightforward ordering processes and reliable service, with repeat purchasers noting consistent positive experiences. The breaker installed easily and functioned properly in various applications.
Rating
Ratings
70 reviews
  • CP
    Casey P.
    Verified Buyer
    Reviewing
    Square D FA34030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/14/26
    Great company

    Ordered on a Saturday evening, paid for two day shipping and it arrived on time and in perfect condition. Would 100 percent be using this company going forward, beat out pricing and shipping times for all my local supply houses. Plus the staff were great to deal with.

  • AH
    Ann H.
    Verified Buyer
    Reviewing
    Square D FA36100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/22/26
    Professional Service

    So far, so good! The circuit breaker was installed along with a new compressor for our church AC, and everything is now working well.

    The company has been professional, dependable, and reputable throughout the process. I had a question after the installation, and it was answered immediately. I also appreciated that they followed up and asked for feedback to make sure the new part was working properly and that we were satisfied with the service.

    It’s refreshing to deal with a company that not only has quality products but also cares about its customers after the job is completed. I would definitely recommend them!

  • RE
    rene e.
    Verified Buyer
    Reviewing
    Square D FA34070 - 70A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/14/26
    breaker

    breaker was just as discribed

  • BE
    Ballentine E.
    Verified Buyer
    Reviewing
    Square D FA24060AC - 60A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/15/26
    Great

    Accurate and on time.

  • EB
    Edward B.
    Verified Buyer
    Reviewing
    Square D FA32100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/1/26
    As good as new

    The Square D FA32100 circuit breaker (refurbished) was as good as a new breaker, without exception. There was no wear and tear or any marks at all. It was basically new. It is an excellent choice and a great product without having to pay the cost of a new breaker.