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Eaton / Cutler-Hammer QCF1050 Miniature Circuit Breaker
- 50A
- 1 Pole
- Panel Mount
Eaton / Cutler-Hammer
QCF1050
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QCF1050
Quantity
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Eaton / Cutler-Hammer QCF1050 - 50A 1 Pole Miniature Circuit Breaker
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Quantity
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Description
Part of the Quicklag family, this 50A single-pole miniature circuit breaker is designed for commercial and industrial applications. It provides reliable thermal-magnetic protection for branch circuits and equipment. This unit installs into Eaton Quicklag panelboards, OEM control panels, and compatible enclosures. It features a front-mounting, cable-in/cable-out configuration with standard box lug terminals accepting 14-4 AWG wire.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | QCF |
| Amperage | 50A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QCF |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | OEM Control Panels, Enclosures, Eaton Quicklag Panelboards |
| 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 |
| Available Options | Padlock Attachment, Shunt Trip, Auxiliary Switch, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhat equipment is the QCF1050 circuit breaker designed to fit?
It is engineered for installation in Eaton Quicklag panelboards, OEM control panels, and compatible enclosures requiring a front-mounted, cable-in/cable-out breaker configuration.
How do you connect the line and load wiring to the QCF1050?
This feed-thru breaker uses standard box lug terminals for both line and load connections. The lugs are rated for 14 AWG to 4 AWG aluminum or copper conductors.
What type of protection does the QCF1050 provide for branch circuits?
It features a fixed thermal-magnetic trip mechanism that delivers long-time (thermal) protection for overloads and instantaneous (magnetic) protection for short circuits, with a maximum interrupting rating of 10 kAIC at 120/240VAC.
How is the QCF frame breaker mounted inside an enclosure?
The QCF series is designed for front-mounting in panel-mount applications. It uses a cable-in/cable-out design rather than plugging directly onto a busbar.
Does this breaker replace older Cutler-Hammer QCF1050 models?
Yes, Eaton acquired Cutler-Hammer, and this breaker serves as the direct replacement for legacy Cutler-Hammer QCF1050 breakers, maintaining the exact same form factor and thermal-magnetic specifications.
Is the QCF1050 suitable for high-fault current applications?
No, this miniature circuit breaker has a standard interrupting rating of 10 kAIC at 120/240VAC. It is not designed for systems with available fault currents exceeding 10,000 amps.
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