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Eaton / Cutler-Hammer BAB1020S Miniature Circuit Breaker
- 20A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB1020S
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB1020S
Quantity
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Eaton / Cutler-Hammer BAB1020S - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer BAB1020S - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB1020S |
| 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 |
| 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 (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated |
Sold out
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Eaton / Cutler-Hammer BAB1020S - 20A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB1020S-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 |
| 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 (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated |
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Description
Built for commercial safety systems, this 20-amp breaker incorporates a 120/208/240VAC shunt trip for remote circuit disconnection. The thermal-magnetic design ensures standard overload defense alongside specialized control features. Requiring a 2.2-inch footprint, the bolt-on device fastens into Eaton Pow-R-Line and Westinghouse panelboards. It functions as an upgrade for older QB series breakers. With a 10kAIC capacity, the component is fully HACR and SWD certified for HVAC loads.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB1020S |
| 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 |
| 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 (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, SWD Rated |
Product FAQs
6 answersWhat panels are compatible with the BAB1020S breaker?
This bolt-on breaker is designed exclusively for commercial Eaton Pow-R-Line, Cutler-Hammer, and legacy Westinghouse panelboards. It will not fit in standard residential plug-on load centers.
What does the S suffix indicate on the BAB1020S catalog number?
The S suffix denotes a factory-installed shunt trip mechanism. This allows the breaker to be tripped remotely via a control signal, commonly used in emergency shutdown or equipment interlocking systems.
How much panel space is required to install the BAB1020S?
Although it is a 1-pole circuit breaker, the integrated shunt trip is mounted on the right side of the breaker body. This requires one additional space, meaning the assembly occupies two consecutive pole spaces in the panelboard.
What is the operating current of the integrated shunt trip coil?
When actuated, the shunt trip coil draws approximately 2.6 amps at 120V AC, or 11 amps at 24V DC. Control circuits must be sized to handle this brief inrush current to ensure reliable tripping.
Can the BAB1020S be applied in low-voltage DC control panels?
Yes. While typically used for 120/240V AC commercial branch circuits, this breaker carries a DC interrupting rating of 5 kA at 24V DC and 48V DC, making it suitable for industrial control and battery backup applications.
Can I substitute a standard BAB1020 if the BAB1020S is specified?
No. The standard BAB1020 lacks the shunt trip module required for remote disconnect operations. If the project drawings specify the BAB1020S for emergency stop or shunt tripping, substituting the standard breaker will eliminate that required safety function.
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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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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