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Eaton / Cutler-Hammer BAB2020H Miniature Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB2020H
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB2020H
Quantity
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Eaton / Cutler-Hammer BAB2020H - 20A 2 Pole Miniature Circuit Breaker
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Description
Built for demanding commercial and marine applications, the Eaton BAB2020H delivers reliable overcurrent protection. This 2-pole, 20A miniature circuit breaker features a thermal-magnetic trip unit for 120/240VAC systems. It utilizes a secure bolt-on mounting style designed to fit Eaton Pow-R-Line, Westinghouse, and Cutler-Hammer panelboards. It also serves as a direct replacement for legacy QNBL2020 breakers. Calibrated for 50°C, this marine-duty breaker provides a 10kAIC rating.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2020H |
| Series | BAB |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC, 24VDC, 48VDC, 62.5VDC, 80VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 24VDC, 5kA @ 48VDC, 5kA @ 62.5VDC, 5kA @ 80VDC |
| Frame Type | BAB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Westinghouse Panelboards, Cutler-Hammer Panelboards |
| Wire Gauge | 14-4 AWG (Al/Cu) |
| Max Wire | 4 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, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Marine Duty Calibration (50C) |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | ABS, CSA, UL, USCG |
| Temp Rating | 50C |
Product FAQs
7 answersWhat panelboards are compatible with the BAB2020H circuit breaker?
This bolt-on breaker is designed for use in Eaton Pow-R-Line C and Pow-R-Line Xpert panelboards, including PRL1a, PRL2a, PRL1X, and PRL2X models. It is also backward compatible with legacy Westinghouse and Cutler-Hammer panelboards that accept standard BAB frame breakers.
What is the difference between the BAB2020 and the BAB2020H?
The H suffix indicates the breaker is fully rated for 240V systems. While a standard BAB2020 is rated for 120/240V and requires a system with a grounded neutral, the BAB2020H is suitable for straight 240V delta or corner-grounded delta applications without a neutral.
Can I use the Eaton BAB2020H to replace an older Cutler-Hammer or Westinghouse BAB2020H?
Yes. Eaton acquired Cutler-Hammer, which previously purchased the distribution equipment line from Westinghouse. The current Eaton BAB2020H is the exact replacement for older Westinghouse and Cutler-Hammer breakers bearing the same catalog number.
Is there a direct replacement available with a higher interrupting rating?
Yes. If your electrical system requires a higher interrupting capacity than the 10kAIC provided by the BAB2020H, you can use the Eaton QBHW2020H. The QBHW2020H fits the same bolt-on footprint but offers a 22kAIC rating at 240V.
What size screw is required to mount the BAB2020H into a Pow-R-Line panelboard?
To secure a BAB circuit breaker into standard Eaton PRL1 or PRL2 panelboards, you will typically need a 10-32 x 1/2 inch mounting screw. The breaker bolts directly to the panelboard bus.
What is the recommended wire torque for the box lug terminals on the BAB2020H?
The standard terminal tightening torque for a 20-amp BAB breaker is 20 in-lbs for 14 to 10 AWG wire, 25 in-lbs for 8 AWG wire, and 27 in-lbs for 6 to 4 AWG wire. Always verify against the specific torque label printed on the side of the breaker prior to installation.
Can I field-install a shunt trip or other accessories on the BAB2020H?
No. The Eaton BAB frame does not support field-installed internal accessories. If your application requires a shunt trip or auxiliary switch, you must order a breaker with those components factory-installed. A factory-installed shunt trip will also require one additional pole space in the panel.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 164 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 6/19/26
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.
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Rating
164 reviews
- RSRoss S.Verified BuyerReviewingEaton / Cutler-Hammer BAB1020 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/21/26Breakers
The right breakers at a great price.
- JHJason H.Verified BuyerReviewingEaton / Cutler-Hammer BAB3080H - 80A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/16/26Excellent 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.
- REReliant E. S.Verified BuyerReviewingEaton / Cutler-Hammer BAB1030 - 30A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/13/26easy and quick
quick and always has what I need
- LFLincoln F.Verified BuyerReviewingEaton / Cutler-Hammer BAB3030H - 30A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/26Mstr Electrician
Came on time, works great! Always good quality, dependable service. Thanks again.
- DNDouglas N.Verified BuyerReviewingEaton / Cutler-Hammer BAB2020 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Church
Did the job all is great thank you