Eaton / Cutler-Hammer QCHW2020 Miniature Circuit Breaker
- 20A
- 2 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer QCHW2020 - 20A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Providing essential branch circuit protection, this 20A two-pole breaker is engineered for rigorous industrial environments. The Quicklag series utilizes proven thermal-magnetic trip technology to prevent overloads. Installers can mount this cable-in/cable-out component into commercial enclosures and control panels. It also adapts to DIN rail configurations with the proper accessory. The device boasts a 22kAIC capacity, offering superior safety margins, and is HACR rated for HVAC motor loads.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QCHW2020 |
| Series | QCHW |
| Amperage | 20A |
| 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 | 14-10 AWG |
| Max Wire | 10 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, DIN Rail Adapter |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Cable-In/Cable-Out |
Product FAQs
6 answersCan the QCHW2020 be mounted on a standard DIN rail?
Yes, this Quicklag cable-in/cable-out breaker can be mounted to a standard 35mm DIN rail, but it requires the use of a separate adapter bracket (Eaton part number QCDINADAPT).
What is the difference between Eaton QC2020 and QCHW2020 circuit breakers?
The primary difference is the short-circuit interrupting rating. The standard QC2020 is rated at 10 kAIC, while the QCHW2020 features a higher interrupting capacity of 22 kAIC at 240V. Both share the same physical dimensions and cable-in/cable-out mounting style.
How are wire connections made on the QCHW2020?
This is a unit-mount, feed-thru circuit breaker. Both the line and load sides feature box lug terminals designed for direct cable-in/cable-out connections, accepting 14 to 10 AWG wire.
Is the QCHW2020 a direct replacement for older Cutler-Hammer or Westinghouse QCHW breakers?
Yes, Eaton manufactures the Quicklag series to the exact physical and electrical specifications as legacy Cutler-Hammer and Westinghouse QCHW models, making it a direct drop-in replacement for existing control panels and enclosures.
Can this breaker be installed in a standard residential loadcenter?
No, the QCHW2020 is a unit-mount, cable-in/cable-out breaker designed for control panels and standalone enclosures. It does not have the plug-on or bolt-on clips required for standard residential busbars.
Does the QCHW2020 provide ground fault or arc fault protection?
No, this is a standard thermal-magnetic circuit breaker providing only overload and short-circuit protection. It does not include GFCI or AFCI circuitry.
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