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Eaton / Cutler-Hammer QBHW1040 Miniature Circuit Breaker
- 40A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
QBHW1040
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QBHW1040
Quantity
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Eaton / Cutler-Hammer QBHW1040 - 40A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer QBHW1040 - 40A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW1040 |
| Series | QBHW |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | BAB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Pow-R-Line 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
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Eaton / Cutler-Hammer QBHW1040 - 40A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW1040-R |
| Series | QBHW |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | BAB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Pow-R-Line 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
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Description
A dependable choice for commercial applications, the Eaton QBHW1040 is a 1-pole, 40A miniature circuit breaker. It features a fixed thermal-magnetic trip mechanism to safeguard electrical circuits against overloads and short circuits. Designed specifically for Eaton Pow-R-Line panelboards, this breaker utilizes a bolt-on mounting configuration. This secure attachment method is ideal for industrial environments.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW1040 |
| Series | QBHW |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC, 48VDC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC, 5kA @ 48VDC |
| Frame Type | BAB |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Eaton Pow-R-Line 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhat panelboards are compatible with the QBHW1040 circuit breaker?
The QBHW1040 is designed for use in Eaton Pow-R-Line panelboards, specifically models like the PRL1a and PRL2a that accept bolt-on Quicklag circuit breakers.
What is the difference between the BAB1040 and the QBHW1040?
Both are 40A, 1-pole, bolt-on Quicklag circuit breakers. The primary difference is their interrupting capacity. The BAB1040 is rated at 10kAIC, while the QBHW1040 offers a higher rating of 22kAIC at 120/240VAC.
Can the QBHW1040 replace older Westinghouse breakers?
Yes, the QBHW1040 shares the same physical dimensions and bolt-on mounting design as older Cutler-Hammer and Westinghouse QB series breakers, making it a direct replacement for those obsolete units.
Is the QBHW1040 HACR rated for HVAC applications?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
Can the QBHW1040 be used in DC voltage applications?
Yes, in addition to its standard AC ratings, this breaker is approved for use in DC applications up to 48VDC, providing 5kAIC of interrupting capacity for control panels and battery systems.
Why use a bolt-on breaker like the QBHW1040 instead of a plug-on type?
Bolt-on breakers like the QBHW1040 physically bolt to the panelboard bus, providing a more secure and stable connection. This prevents the breaker from vibrating loose in high-demand commercial and industrial environments.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 11 reviews.
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Rating
11 reviews
- CMCalvin M.Verified BuyerReviewingEaton / Cutler-Hammer QBHW2100 - 100A 2 Pole Miniature Circuit BreakerI recommend this productRated 4 out of 5 stars7/22/26SuperBreakers
SuperBreakers haven't disappointed me yet. They always have what I need and very timely deliveries!
- WJWilliam J.Verified BuyerReviewingEaton / Cutler-Hammer QBHW1020 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/2/26Emergency-Overnight Purchase and Delivery
I needed breaker ASAP and SuperBreakers made it happen!
- NSNathan S.Verified BuyerReviewingEaton / Cutler-Hammer QBHW2040S - 40A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/19/26Arrived Just in Time
Always satisfied with my SuperBreakers purchases!
- PMPete M.Verified BuyerReviewingEaton / Cutler-Hammer QBHW2015 - 15A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/12/25Great service and very helpful
Knowledgable staff, easy to use website. Quick shipping turnaround.
- BCBrian C.ReviewingEaton / Cutler-Hammer QBHW2020 - 20A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/9/23plug & play
Your website is very user friendly parts arrived promptly exact same parts no issues