Eaton / Cutler-HammerBAB3040HS
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Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Eaton / Cutler-Hammer BAB3040H Miniature Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
BAB3040H
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
BAB3040H
Quantity
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Eaton / Cutler-Hammer BAB3040H - 40A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer BAB3040H - 40A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB3040H |
| Series | BAB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Sold out
Quantity
Eaton / Cutler-Hammer BAB3040H - 40A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB3040H-R |
| Series | BAB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
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Description
Built for industrial environments, this 40A, 3-pole Quicklag breaker delivers standard thermal-magnetic protection for commercial branch circuits. The bolt-on configuration mounts securely into Eaton Pow-R-Line, Cutler-Hammer, and Westinghouse panelboards. It provides a reliable drop-in solution for replacing older QNBL3040 breakers. With a 10kAIC capacity at 240VAC, it features box lug terminals for 14-4 AWG conductors and carries an HACR rating for HVAC applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | BAB3040H |
| Series | BAB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Handle Lock |
|---|---|
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich panelboards are compatible with the BAB3040H?
This breaker is designed specifically for Eaton, Cutler-Hammer, and legacy Westinghouse Pow-R-Line 1a (PRL1a) panelboards.
Can this unit replace older Westinghouse BAB3040 breakers?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse electrical distribution lines. The BAB3040H is the direct drop-in replacement for older Westinghouse and Cutler-Hammer breakers carrying the BAB3040 or BAB3040H catalog numbers.
Is there a compatible Quicklag breaker with a higher interrupting rating?
Yes. If your electrical system requires a short-circuit interrupting capacity higher than 10 kAIC, you can upgrade to the Eaton QBHW3040. It shares the same physical footprint and bus connection but provides a 22 kAIC rating at 240VAC.
Is the BAB3040H suitable for HVAC applications?
Yes, all Eaton Quicklag BAB breakers from 15 to 100 amps are HACR rated. This makes the breaker code-compliant for protecting heating, air conditioning, and refrigeration equipment circuits.
What does the H signify in the BAB3040H catalog number?
In the Eaton Quicklag series, the H suffix designates 240V rated two-pole and three-pole models. This distinguishes them from the standard 120/240V rated versions in the BAB product line.
How does the bolt-on connection work on Quicklag BAB breakers?
The breaker features metal mounting brackets that physically bolt directly to the panelboard bus bar. This ensures a highly secure, vibration-resistant electrical connection required for commercial and industrial panelboards.
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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.
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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