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Eaton / Cutler-Hammer QC1050 Miniature Circuit Breaker
- 50A
- 1 Pole
- Panel Mount
Eaton / Cutler-Hammer
QC1050
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QC1050
Quantity
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Eaton / Cutler-Hammer QC1050 - 50A 1 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer QC1050 - 50A 1 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC1050 |
| Series | QC |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC, 24-48VDC, 62.5VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 24-48VDC, 3.8kA @ 62.5VDC |
| Frame Type | QC |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter) |
| Wire Gauge | 14-4 AWG (Al/Cu) |
| 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 | Padlock Attachment, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Cable-in/Cable-out design |
Sold out
Quantity
Eaton / Cutler-Hammer QC1050 - 50A 1 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC1050-R |
| Series | QC |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC, 24-48VDC, 62.5VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 24-48VDC, 3.8kA @ 62.5VDC |
| Frame Type | QC |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter) |
| Wire Gauge | 14-4 AWG (Al/Cu) |
| 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 | Padlock Attachment, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Cable-in/Cable-out design |
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Description
Part of the Quicklag family, this 50-amp miniature circuit breaker provides reliable thermal-magnetic protection for residential, commercial, and industrial applications. The cable-in/cable-out configuration allows for versatile wiring without requiring a traditional busbar connection. It installs into standard control panels, enclosures, or DIN rails when paired with the appropriate adapter, and serves as an exact replacement for the legacy QCL1050 model. Rated for 10kAIC at 120/240VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC1050 |
| Series | QC |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC, 24-48VDC, 62.5VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 5kA @ 24-48VDC, 3.8kA @ 62.5VDC |
| Frame Type | QC |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter) |
| Wire Gauge | 14-4 AWG (Al/Cu) |
| 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 | Padlock Attachment, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Cable-in/Cable-out design |
Product FAQs
5 answersHow is the QC1050 installed in a control panel?
The QC1050 features a feed-thru, cable-in/cable-out design. Instead of connecting to a traditional busbar, it mounts directly to a panel backplate or enclosure using a mounting base plate, such as the QC1BP, and is wired directly on both the line and load sides.
Can the QC1050 be mounted on a DIN rail?
Yes, this breaker can be installed on a standard 35mm DIN rail by attaching the Eaton QCDINADAPT adapter. One adapter kit is required per breaker pole.
Is the Eaton QC1050 backwards compatible with older Westinghouse breakers?
Yes, Eaton manufactures the QC1050 as a direct, exact replacement for legacy Westinghouse and Cutler-Hammer QC1050 and QCL1050 circuit breakers.
What are the DC voltage capabilities of the QC1050?
While primarily used for 120/240VAC circuits, the QC1050 is also rated for DC systems up to 62.5VDC, providing a 3.8kA interrupting capacity for direct current applications.
Does the QC1050 require specific wire materials for its terminals?
The factory-installed box lugs are dual-rated for both copper (Cu) and aluminum (Al) conductors, accepting wire sizes between 14 AWG and 4 AWG.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 15 reviews.
Total 5 star reviews: 15 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
15 reviews
- DSDenise S. A.Verified BuyerReviewingEaton / Cutler-Hammer QC3070H - 70A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Great turn around!
My experience was great. I had the item quickly; and it was more reasonably priced than other places I checked. Not having to pay freight was an absolute bonus.
- DMDouglas M.Verified BuyerReviewingEaton / Cutler-Hammer QC1020 - 20A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/28/25Just what I needed
Ordering was easy and the processing was immediate. The beakers I ordered was exact. I recommend this company for your needs.
- GLGianna L.ReviewingEaton / Cutler-Hammer QC1015 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars11/27/23Great
as advertised!
- EDElmer D.ReviewingZinsco QCAL100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/28/23Very accurate, delivered on time
Very accurate, delivered on time and fixed my problem good job
- RBRawle B.ReviewingEaton / Cutler-Hammer QC1015 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/8/23SuperBreakers had the parts I
SuperBreakers had the parts I needed in stock, was shipped and delivered on time. Great service!