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Eaton / Cutler-Hammer BAB2090 Miniature Circuit Breaker
- 90A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB2090
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB2090
Quantity
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Eaton / Cutler-Hammer BAB2090 - 90A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer BAB2090 - 90A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2090 |
| Series | BAB |
| Amperage | 90A |
| 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 | 8-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Sold out
Quantity
Eaton / Cutler-Hammer BAB2090 - 90A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2090-R |
| Series | BAB |
| Amperage | 90A |
| 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 | 8-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
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Description
Designed to protect commercial branch circuits, the Eaton BAB2090 is a 90A miniature breaker. It utilizes fixed thermal and magnetic trip elements to defend electrical systems against damaging overloads. This two-pole unit features a secure bolt-on mounting configuration. It is compatible with Eaton Pow-R-Line, Cutler-Hammer, and Westinghouse panelboards, serving as a cross-reference for older QB and QNBL models. Carrying a 10 kAIC rating at 120/240VAC, this breaker is HACR certified.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2090 |
| Series | BAB |
| Amperage | 90A |
| 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 | 8-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
7 answersCan the Eaton BAB2090 replace older Westinghouse BAB breakers?
Yes. Eaton acquired the Westinghouse distribution equipment line. The Eaton BAB2090 is a direct, exact replacement for legacy Westinghouse and Cutler-Hammer BAB2090 circuit breakers.
What is the difference between Eaton BAB and QBHW circuit breakers?
Both are Quicklag bolt-on breakers with identical physical dimensions that fit the same panelboards. The difference is the interrupting capacity. The BAB2090 is rated for 10kAIC at 240VAC, while the QBHW equivalent is rated for 22kAIC.
Which panelboards accept the BAB2090 circuit breaker?
The BAB2090 is a bolt-on breaker designed for Eaton Pow-R-Line panelboards, including the PRL1a and PRL2a series. It is also fully compatible with legacy Cutler-Hammer and Westinghouse panelboards that require Quicklag BAB-frame breakers.
Can the BAB2090 be used in DC voltage systems?
Yes. In addition to its 120/240VAC rating, the BAB2090 is rated for DC applications up to 80VDC, providing a 5kAIC interrupting rating for 24V, 48V, 62.5V, and 80VDC systems.
What protection does the LI trip function provide on the BAB2090?
The LI (Long-Time, Instantaneous) designation means this thermal-magnetic breaker provides two types of protection. The thermal Long-Time element protects against sustained overloads, while the magnetic Instantaneous element clears short circuits immediately.
What type of wire is compatible with the BAB2090 box lugs?
The breaker's box lugs accept 8 AWG to 1/0 AWG conductors. The terminals are rated for use with both copper (Cu) and aluminum (Al) wire.
What is the advantage of the bolt-on connection on the BAB2090?
The bolt-on mounting style secures the breaker directly to the panelboard bus bar with screws. This creates a highly reliable mechanical and electrical connection that prevents the breaker from loosening due to vibration or thermal cycling.
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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