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Eaton / Cutler-Hammer BAB1020 Miniature Circuit Breaker

  • 20A
  • 1 Pole
  • Bolt-On
Eaton / Cutler-Hammer BAB1020
Miniature Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU BAB1020
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  • 20A
  • 1 Pole
  • Bolt-On

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Eaton / Cutler-Hammer BAB1020 - 20A 1 Pole Miniature Circuit Breaker

Eaton / Cutler-Hammer BAB1020 - 20A 1 Pole Miniature Circuit Breaker

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$9.49 In Stock

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Description

Designed for commercial electrical systems, the BAB1020 delivers standard 20-amp branch circuit protection. This Quicklag component utilizes proven thermal-magnetic trip technology to handle overloads effectively. The bolt-on configuration installs into Eaton Pow-R-Line panelboards, plus legacy Westinghouse and Bryant enclosures. It serves as an exact replacement for older QNBL1020 models.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number BAB1020-R
Series BAB
Amperage 20A
Poles 1
Mounting Style Bolt-On
Voltage 120/240VAC, 24VDC, 48VDC, 62.5VDC
Phase 1
AIC Rating 10kA @ 120/240VAC, 5kA @ 24VDC, 5kA @ 48VDC, 3.8kA @ 62.5VDC
Fit and installation
Frame Type BAB
Terminal Type Box Lugs
For Use With Eaton Pow-R-Line Panelboards, Westinghouse Panelboards, Cutler-Hammer Panelboards, Bryant Panelboards
Wire Gauge 14-4 AWG (Al/Cu)
Max Wire 4 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, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock
Accessories Extended Tang Line Terminal
Standards HACR, SWD, UL 489, CSA C22.2 No. 5
Approval CSA, UL
Temp Rating 40C

Product FAQs

7 answers
Can I install the BAB1020 in a residential Eaton load center?

No. The BAB1020 is an industrial bolt-on circuit breaker designed specifically for Eaton Pow-R-Line panelboards, as well as compatible legacy Westinghouse and Bryant panels. It will not fit in standard residential load centers that require plug-on BR or CH series breakers.

Which specific Eaton Pow-R-Line panelboards accept this breaker?

It is designed for Pow-R-Line enclosures configured for 1-inch Quicklag bolt-on branch breakers. This most commonly includes the PRL1a and PRL1a-LX series panelboards.

Will this replace an older Westinghouse BAB1020 breaker?

Yes. Eaton acquired the Westinghouse distribution equipment line. A modern Eaton BAB1020 is a direct, exact drop-in replacement for legacy Westinghouse and Cutler-Hammer breakers with the same catalog number.

Can the BAB1020 replace discontinued QNBL series breakers?

Yes. This component serves as an exact replacement for older, discontinued QNBL1020 models used in vintage bolt-on panelboards.

Is the BAB1020 rated for switching duty (SWD) and HACR applications?

Yes. It carries an SWD rating, meaning it is approved for regularly switching fluorescent lighting loads on and off. It is also HACR certified for safely protecting heating, air conditioning, and refrigeration equipment circuits.

Can I use the BAB1020 in place of a GHB1020?

No. While both are Eaton bolt-on circuit breakers, they belong to different frames and fit different panelboards. The BAB series fits 1-inch Quicklag chassis (like the PRL1a), while the GHB series fits 277/480V rated panelboards (like the PRL2a) and has a completely different physical footprint.

Does this breaker provide arc fault (AFCI) or ground fault (GFCI) protection?

No. The BAB1020 provides standard thermal-magnetic branch circuit protection against overloads and short circuits. It does not include built-in AFCI or GFCI protection.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 164 reviews
Reviews Summary
Customers say these breakers function as intended and arrive quickly. Fast shipping is consistently mentioned across reviews, with many noting timely delivery and secure packaging. Customers appreciate competitive pricing and the availability of items in stock. Products arrive in good condition, well-packaged, and work properly upon installation. Common feedback addresses responsive customer service and reliable order fulfillment. Most customers report smooth purchasing experiences and indicate they will return for future orders.
Rating
Ratings
164 reviews
  • RS
    Ross S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB1020 - 20A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/21/26
    Breakers

    The right breakers at a great price.

  • JH
    Jason H.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB3080H - 80A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/16/26
    Excellent Experience

    We placed our first order with superbreakers.com recently for a breaker we weren't able to acquire locally. I ordered the breaker way ahead of time because I've had issues with shipping for products purchased online in the past. The estimate for the item when I initially ordered was 3 days. Without adding an expedited shipping options, the breaker arrived the next day. We installed it this week, and so far so good. In my opinion, they sell quality parts and have excellent turn around time. Very impressed.

  • RE
    Reliant E. S.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB1030 - 30A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/13/26
    easy and quick

    quick and always has what I need

  • LF
    Lincoln F.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB3030H - 30A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/26
    Mstr Electrician

    Came on time, works great! Always good quality, dependable service. Thanks again.

  • DN
    Douglas N.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer BAB2020 - 20A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/3/26
    Church

    Did the job all is great thank you