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Eaton / Cutler-Hammer QC3020H Miniature Circuit Breaker
- 20A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
QC3020H
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QC3020H
Quantity
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Eaton / Cutler-Hammer QC3020H - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer QC3020H - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3020H |
| Series | QC |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 24-48VDC, 62.5VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 24-48VDC, 3.8kA @ 62.5VDC |
| 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 Thermal, Fixed Magnetic |
| Available Options | DIN Rail Adapter, 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 |
Sold out
Quantity
Eaton / Cutler-Hammer QC3020H - 20A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3020H-R |
| Series | QC |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 24-48VDC, 62.5VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 24-48VDC, 3.8kA @ 62.5VDC |
| 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 Thermal, Fixed Magnetic |
| Available Options | DIN Rail Adapter, 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 |
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Description
Manufactured for robust commercial systems, this 20A Eaton Quicklag breaker delivers consistent thermal-magnetic performance. It is built to handle the rigorous demands of industrial and marine environments. The QC3020H utilizes a cable-in/cable-out panel-mount configuration that fits seamlessly into standard enclosures. With the addition of a compatible adapter, it easily mounts onto DIN rails for versatile control panel applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3020H |
| Series | QC |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 24-48VDC, 62.5VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 24-48VDC, 3.8kA @ 62.5VDC |
| 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 Thermal, Fixed Magnetic |
| Available Options | DIN Rail Adapter, 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 answersHow is the QC3020H circuit breaker mounted in a control panel?
This Quicklag breaker uses a cable-in/cable-out panel mount configuration. It can be secured to a backpan using a compatible Eaton mounting base plate, or it can be adapted for DIN rail installation using a separate mounting clip.
Which mounting base plates work with this 3-pole QC breaker?
It is compatible with Eaton Quicklag QC mounting base plates, such as the QC6BP, which provides a secure cable-in/cable-out connection point for up to six poles in commercial enclosures.
Is this breaker suitable for direct current (DC) control circuits?
Yes, the QC3020H is rated for DC applications. It provides an interrupting capacity of 3.8kA at 62.5VDC, making it suitable for specific industrial control panels requiring DC circuit protection.
What are the wire gauge requirements for the QC3020H terminals?
The breaker accepts 14 AWG to 10 AWG wire. Both aluminum and copper conductors are supported, providing flexibility for various panel wiring requirements.
Will this breaker replace an older Cutler-Hammer QC3020H?
Yes. Eaton acquired Cutler-Hammer, and the Quicklag QC series continues under the Eaton brand. A new Eaton QC3020H is a direct, exact replacement for a legacy Cutler-Hammer breaker with the same catalog number.
Are the thermal and magnetic trip settings adjustable on this model?
No, this breaker features a fixed thermal-magnetic trip unit. Both the Long-Time (thermal) and Instantaneous (magnetic) protection functions are factory set and non-interchangeable.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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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!