Eaton / Cutler-HammerQBHW2050S
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Eaton / Cutler-Hammer QBHW2050 Miniature Circuit Breaker
- 50A
- 2 Pole
- Bolt-On
Eaton / Cutler-Hammer
QBHW2050
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QBHW2050
Quantity
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Eaton / Cutler-Hammer QBHW2050 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer QBHW2050 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW2050 |
| Series | QBHW |
| Amperage | 50A |
| Poles | 2 |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Sold out
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Eaton / Cutler-Hammer QBHW2050 - 50A 2 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW2050-R |
| Series | QBHW |
| Amperage | 50A |
| Poles | 2 |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
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Description
Designed for heavy-duty applications, the Eaton QBHW2050 is a 50A, 2-pole miniature circuit breaker delivering dependable thermal-magnetic protection. This Quicklag series breaker mounts securely into Eaton Pow-R-Line panelboards using a bolt-on connection. It is a suitable substitute for the HBAX2050, providing maintenance flexibility. With an interrupting rating of 22 kAIC at 120/240VAC, it handles demanding faults. The HACR-rated unit accepts 14-4 AWG copper or aluminum wiring.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QBHW2050 |
| Series | QBHW |
| Amperage | 50A |
| Poles | 2 |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
5 answersWhat panelboards accept the QBHW2050 circuit breaker?
This bolt-on miniature breaker fits Eaton Cutler-Hammer Pow-R-Line panelboards, specifically commercial distribution panels designed to accept Quicklag series breakers.
What is the difference between the QBHW2050 and the BAB2050 breakers?
Both are 50-amp, 2-pole Quicklag bolt-on breakers that share the same physical dimensions and fit the same Eaton panelboards. The difference is their maximum interrupting capacity. The BAB2050 is rated for 10 kAIC, whereas the QBHW2050 is rated for 22 kAIC for systems requiring higher fault current protection.
How does the thermal-magnetic trip mechanism protect the electrical circuit?
The thermal element provides a delayed trip in response to sustained overloads, allowing for temporary inrush currents without nuisance tripping. The magnetic element reacts to severe short circuits by tripping instantaneously to prevent equipment damage and fire hazards.
How is the QBHW2050 secured within the panelboard?
It uses a bolt-on connection, meaning it fastens directly to the panelboard bus bar with a threaded screw. This creates a secure, vibration-resistant electrical connection commonly required in commercial and industrial environments.
Can this breaker be utilized in direct current circuits?
Yes. In addition to standard AC applications, this breaker is rated for 48VDC systems. This makes it suitable for low-voltage DC applications such as industrial control panels, telecommunications, or battery racks.
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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