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Eaton / Cutler-Hammer BAB2020 Miniature Circuit Breaker
- 20A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB2020
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB2020
Quantity
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Eaton / Cutler-Hammer BAB2020 - 20A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer BAB2020 - 20A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2020 |
| 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, Bryant 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, Padlock Attachment |
|---|---|
| Accessories | Extended Tang Line Terminal |
| Standards | HACR, SWD, UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Sold out
Quantity
Eaton / Cutler-Hammer BAB2020 - 20A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2020-R |
| 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, Bryant 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, Padlock Attachment |
|---|---|
| Accessories | Extended Tang Line Terminal |
| Standards | HACR, SWD, UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
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Description
Built for commercial environments, this 20A, two-pole miniature circuit breaker provides essential thermal-magnetic protection. It operates on 120/240VAC systems to safeguard branch circuits. The bolt-on unit mounts securely into Eaton Pow-R-Line, Bryant, and Westinghouse enclosures. It effectively replaces discontinued QNBL series breakers. With a 10kAIC interrupt capacity, the breaker ensures reliable fault clearing. It carries both HACR and SWD ratings for HVAC and lighting applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2020 |
| 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, Bryant 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, Padlock Attachment |
|---|---|
| Accessories | Extended Tang Line Terminal |
| Standards | HACR, SWD, UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhich panelboards accept the BAB2020 circuit breaker?
This Quicklag breaker is designed for modern Eaton Pow-R-Line load centers. It will also fit legacy Cutler-Hammer, Westinghouse, and Bryant panelboards built to accept bolt-on BAB frames.
Can the Eaton BAB2020 replace a discontinued Westinghouse BAB2020?
Yes. Eaton acquired the distribution equipment lines of Cutler-Hammer, Westinghouse, and Bryant. The modern Eaton BAB2020 is a direct physical and electrical replacement for legacy breakers that share the exact same catalog number.
How much panel space is required for installation?
This 2-pole breaker requires two spaces in the panelboard. It measures exactly 2 inches wide, which conforms to the standard 1-inch per pole spacing used in Quicklag panels.
What is the recommended terminal torque for the box lugs?
Terminal torque varies by conductor size. Tighten 14-10 AWG wire to 20 in-lbs, 8 AWG wire to 25 in-lbs, and 6-4 AWG wire to 27 in-lbs to ensure a secure electrical connection.
What is the advantage of the bolt-on connection?
Standard residential breakers snap into place, while the BAB2020 must be mechanically fastened directly to the busbar. This creates a high-torque, vibration-resistant connection that helps prevent arcing in demanding commercial and industrial environments.
Is the BAB2020 rated for HVAC applications?
Yes, Eaton BAB series breakers from 15A to 100A are Heating, Air Conditioning, and Refrigeration (HACR) rated. This makes the BAB2020 fully approved for protecting HVAC branch circuits.
Does this breaker offer AFCI or GFCI protection?
No, the BAB2020 is a standard thermal magnetic circuit breaker designed for overcurrent and short-circuit protection only. It does not contain arc fault or ground fault circuit interruption technology.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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