Eaton / Cutler-Hammer QCHW3020H Miniature Circuit Breaker
- 20A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer QCHW3020H - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Eaton's QCHW3020H is a 20-amp, three-pole miniature circuit breaker belonging to the proven Quicklag product line. Engineered for commercial environments, it provides dependable thermal-magnetic protection for three-phase equipment. This unit mount breaker features a cable-in/cable-out design, allowing it to be installed in control panels or standalone enclosures. With an interrupting rating of 22 kAIC at 240VAC, this device handles high fault currents safely and is HACR rated.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QCHW3020H |
| Series | QCHW |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | QC |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter) |
| Wire Gauge | 14-10 AWG (Al/Cu) |
| 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 |
|---|---|
| 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
6 answersWhat are the recommended terminal torque specifications for the QCHW3020H?
For the accepted 14 to 10 AWG wire range, the box lug terminals should be torqued to 20 in-lbs. Always use 60/75 degree Celsius rated copper or aluminum conductors to ensure a secure and compliant connection.
Can I install the QCHW3020H in a standard residential load center?
No. The QCHW3020H is a unit mount, cable-in/cable-out breaker designed for OEM control panels, enclosures, and DIN rail applications. It is not a plug-on breaker and will not fit in standard residential load centers like the Eaton CH or BR series.
Is the QCHW3020H rated for heating, air conditioning, and refrigeration equipment?
Yes, Eaton Quicklag miniature circuit breakers in this amperage range are HACR rated. This makes the breaker suitable for protecting dedicated HVAC circuits and motor loads.
How is the QCHW3020H circuit breaker mounted?
This breaker features a unit mount design for feed-thru installations. It can be front-mounted in compatible OEM control panels and enclosures, or it can be mounted on a standard 35mm DIN rail when paired with the appropriate Eaton mounting adapter.
What is the difference between Eaton QC and QCHW series breakers?
Both are part of the Eaton Quicklag family of cable-in/cable-out miniature breakers. The primary difference is the short circuit interrupting capacity. Standard QC breakers typically feature a 10kAIC rating, while QCHW breakers are built with a higher 22kAIC rating.
Does the QCHW3020H have an adjustable trip setting?
No, this breaker features a fixed thermal magnetic trip unit with long-time and instantaneous protection functions. The trip settings are factory calibrated and cannot be adjusted in the field.
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