Eaton / Cutler-Hammer QCHW2050 Miniature Circuit Breaker
- 50A
- 2 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer QCHW2050 - 50A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for robust electrical systems, this 50A Eaton Quicklag breaker delivers standard Long-Time and Instantaneous (LI) trip functions. It is designed specifically for commercial and industrial power distribution. The QCHW2050 features a cable-in/cable-out mounting style that installs into control panels and equipment enclosures. It accommodates 14-4 AWG wiring through its standard box lugs. Rated at 22kAIC, this two-pole device is HACR certified and features a fixed trip mechanism.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | QCHW |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| 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 |
| Available Options | Padlock Attachment |
|---|---|
| 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 |
Product FAQs
9 answersWhat type of enclosures or panels is the Eaton QCHW2050 designed for?
The QCHW2050 is a unit-mount, cable-in/cable-out miniature circuit breaker. It is typically installed in control panels, standalone enclosures, or on a DIN rail using a compatible adapter, rather than connecting directly to a load center busbar.
Can the QCHW2050 be mounted on a standard DIN rail?
Yes, this unit-mount breaker can be installed on a standard 35mm symmetrical DIN rail, but it requires a specific Eaton DIN rail adapter bracket for proper mounting.
What does the HW in the QCHW2050 part number indicate?
In the Eaton Quicklag family, the HW designates a high-interrupting capacity. The QCHW2050 carries a 22kAIC rating at 120/240VAC, which provides greater fault current protection than standard 10kAIC QC breakers.
What size wire is accepted by the box lugs on this 50A breaker?
The feed-thru box lugs on the QCHW2050 accept both aluminum and copper conductors ranging from 14 AWG to 4 AWG. Ensure proper torque specifications are followed during installation.
Is the QCHW2050 a direct replacement for older Cutler-Hammer QCHW breakers?
Yes, Eaton acquired Cutler-Hammer, and the QCHW2050 is the exact replacement for legacy Cutler-Hammer or Westinghouse breakers with the same catalog number.
Will the QCHW2050 fit in a standard residential load center?
No. The QCHW series features a feed-thru, cable-in/cable-out design for unit mounting. It does not have the plug-on or bolt-on clips required to connect to the busbars in standard residential breaker panels.
Does this breaker provide GFCI or AFCI protection?
No, the QCHW2050 is a standard thermal-magnetic circuit breaker providing long-time and instantaneous trip functions for overload and short-circuit protection. It does not include ground fault or arc fault circuitry.
How are the line and load connections made on the QCHW2050?
Both the line and load connections are made via the integrated box lugs. Because it is a feed-thru breaker, wires are landed directly on both ends rather than drawing power from a panel busbar.
What trip technology does the QCHW2050 use?
It utilizes a fixed thermal-magnetic trip unit. The thermal element provides long-time protection against gradual overloads, while the magnetic element delivers instantaneous tripping during severe short circuits.
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