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Eaton / Cutler-Hammer BAB2030S Miniature Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB2030S
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB2030S
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Eaton / Cutler-Hammer BAB2030S - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer BAB2030S - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2030S |
| Series | BAB |
| Amperage | 30A |
| Poles | 2 |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
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Eaton / Cutler-Hammer BAB2030S - 30A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2030S-R |
| Series | BAB |
| Amperage | 30A |
| Poles | 2 |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
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Description
Engineered for commercial facilities, the Eaton BAB2030S is a 2-pole, 30A thermal-magnetic circuit breaker. It includes a built-in 120/208/240VAC shunt trip mechanism, allowing users to remotely disconnect power for safety purposes. The unit bolts securely into Eaton Pow-R-Line, Cutler-Hammer, and legacy Westinghouse panelboards. It provides a direct cross-reference for older QNBL2030 shunt trip models. Rated at 10 kAIC, this Quicklag breaker is HACR certified and accepts 14-4 AWG conductors.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2030S |
| Series | BAB |
| Amperage | 30A |
| Poles | 2 |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhat does the S suffix in the BAB2030S part number indicate?
The S suffix designates that this circuit breaker is equipped with a factory-installed shunt trip. This mechanism allows for remote tripping of the breaker by sending a voltage signal to the coil, which is commonly used for emergency power-off systems.
Can the BAB2030S replace older Westinghouse circuit breakers?
Yes, Eaton continues to manufacture this breaker to be fully backward compatible with legacy Westinghouse and Cutler-Hammer panelboards. It also serves as a direct replacement for older QNBL2030 shunt trip models.
What is the advantage of the bolt-on connection for this breaker?
As a bolt-on breaker, the BAB2030S fastens directly to the panelboard bus with screws. This creates a secure, vibration-resistant electrical connection that is ideal for demanding commercial and industrial environments, preventing the breaker from shifting or loosening.
What specific protection does the LI trip function provide?
The fixed thermal-magnetic trip unit includes Long-Time (L) and Instantaneous (I) protection. The thermal element responds to sustained overloads by heating up over time, while the magnetic element forces an immediate trip to quickly clear severe short circuits.
Which panelboard systems are compatible with this Quicklag breaker?
The BAB2030S is designed for Eaton Pow-R-Line panelboards. It is also approved for installation in older Cutler-Hammer and Westinghouse commercial panelboards that are configured to accept BAB-frame bolt-on breakers.
Are the terminals on the BAB2030S rated for aluminum conductors?
Yes, the built-in box lugs are AL/CU rated, meaning they are certified to accept both aluminum and copper wiring. Installers must ensure the lugs are tightened to the specific torque values listed on the side of the breaker to maintain a compliant connection.
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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