Free Shipping Over $99
Eaton / Cutler-Hammer BAB2100S Miniature Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB2100S
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB2100S
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer BAB2100S - 100A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer BAB2100S - 100A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2100S |
| Series | BAB |
| Amperage | 100A |
| 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 | 8-1/0 AWG (Al/Cu) |
| 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 Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | HACR, UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Sold out
Quantity
Eaton / Cutler-Hammer BAB2100S - 100A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2100S-R |
| Series | BAB |
| Amperage | 100A |
| 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 | 8-1/0 AWG (Al/Cu) |
| 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 Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | HACR, UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Similar Items
80A 2 Pole Miniature Circuit Breaker
70A 2 Pole Miniature Circuit Breaker
60A 2 Pole Miniature Circuit Breaker
Description
Part of the Quicklag family, this 100A breaker includes a shunt trip for remote power disconnection. It delivers robust thermal-magnetic protection for 120/240VAC commercial systems. Designed for bolt-on installation, it mounts firmly into Eaton Pow-R-Line, Bryant, and Westinghouse panelboards. It also replaces discontinued QNBL breakers. Delivering a 10kAIC interrupting capacity, the unit ensures reliable performance. It features HACR certification and accepts 8-1/0 AWG wiring.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB2100S |
| Series | BAB |
| Amperage | 100A |
| 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 | 8-1/0 AWG (Al/Cu) |
| 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 Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Accessories | Shunt Trip |
| Standards | HACR, UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
8 answersWhat does the "S" suffix in the BAB2100S catalog number indicate?
The "S" suffix designates that this breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely by an external control signal, drawing 2.6A at 120VAC during activation.
How much panel space does the BAB2100S require?
Although it is a 2-pole breaker, the factory-installed shunt trip requires one additional pole space. Therefore, the BAB2100S occupies three pole spaces total in the panelboard.
Which panelboards accept the BAB2100S circuit breaker?
This bolt-on breaker is designed for Eaton Pow-R-Line commercial panelboards. It is also backward compatible with legacy Westinghouse and Bryant panelboards that accept BAB-frame bolt-on breakers.
What are the wiring requirements for the BAB2100S box lugs?
The terminals accept 8 AWG to 1/0 AWG conductors and are rated for both aluminum and copper wire. Ensure proper torque specifications are followed during installation as required by the panelboard labeling.
Can the BAB2100S be utilized in DC circuits?
Yes. While primarily used for 120/240VAC systems, it is also rated for DC applications up to 80VDC. It provides a 5kA interrupting capacity across 24VDC, 48VDC, 62.5VDC, and 80VDC systems.
Can I use the BAB2100S in a standard Eaton BR or CH load center?
No. The BAB2100S is a bolt-on breaker designed specifically for commercial panelboards. It is not interchangeable with plug-on BR or CH series breakers used in residential load centers.
How does the thermal-magnetic trip unit in the BAB2100S operate?
The breaker uses a fixed thermal element to provide long-time (L) protection against sustained overloads, and a fixed magnetic element for instantaneous (I) protection to quickly clear short circuits.
What happens if my system fault current exceeds the 10kAIC rating of the BAB2100S?
The BAB2100S is rated to safely clear a maximum fault current of 10kA at 240VAC. If the available fault current at the panel exceeds this value, you must use a higher-rated breaker, such as the QBHW series, unless a valid series rating applies.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
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.
Search
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