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Eaton / Cutler-Hammer QC3100H Miniature Circuit Breaker
- 100A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
QC3100H
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QC3100H
Quantity
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Eaton / Cutler-Hammer QC3100H - 100A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer QC3100H - 100A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3100H |
| Series | QC |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 48VDC, 62.5VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 48VDC, 3.8kA @ 62.5VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter), Eaton Quicklag Panelboards |
| Wire Gauge | 1-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 1 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, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Sold out
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Eaton / Cutler-Hammer QC3100H - 100A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3100H-R |
| Series | QC |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 48VDC, 62.5VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 48VDC, 3.8kA @ 62.5VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter), Eaton Quicklag Panelboards |
| Wire Gauge | 1-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 1 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, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
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Description
Designed for heavy-duty commercial power distribution, this 100A miniature breaker utilizes a fixed thermal-magnetic mechanism to prevent overloads and short circuits. The robust construction accommodates 1 to 1/0 AWG copper or aluminum wire through standard box lugs. It mounts effortlessly into Eaton Quicklag panelboards and various industrial control enclosures. With a 10kAIC rating at 240VAC, this HACR-rated component meets stringent safety standards for modern facility infrastructure.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3100H |
| Series | QC |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 48VDC, 62.5VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 48VDC, 3.8kA @ 62.5VDC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | Control Panels, Enclosures, DIN Rail (with adapter), Eaton Quicklag Panelboards |
| Wire Gauge | 1-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 1 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, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
7 answersDoes the QC3100H require a specific busbar connection for installation?
No, this is a cable-in/cable-out breaker that does not plug or bolt into a traditional busbar. It mounts directly to the panel backpan or can be installed on a DIN rail using a separate Eaton adapter.
Can I install the QC3100H in a standard residential load center?
No, the QC3100H is a Quicklag cable-in/cable-out breaker designed for industrial control panels, enclosures, and specific Eaton Quicklag panelboards. It will not fit in standard plug-on or bolt-on residential load centers.
Is the QC3100H suitable for direct current (DC) control circuits?
Yes, in addition to its standard 240VAC rating, this breaker is UL 489 approved for DC control panels and enclosures. It provides a 5 kAIC rating at 48 VDC and a 3.8 kAIC rating at 62.5 VDC.
Will a Cutler-Hammer QC3100H match my existing Westinghouse Quicklag breakers?
Yes. Eaton acquired both the Cutler-Hammer and Westinghouse electrical distribution lines. A modern Eaton or Cutler-Hammer QC3100H is a direct, authentic replacement for older Westinghouse breakers with the same QC catalog number.
Can I adjust the trip settings on the QC3100H?
No, the thermal-magnetic trip unit on this breaker is fixed. It provides factory-calibrated long-time (overload) and instantaneous (short-circuit) protection that cannot be modified in the field.
Is the 100A rating of the QC3100H calibrated for a specific ambient temperature?
Yes, the thermal-magnetic trip unit is calibrated for a 40 degrees Celsius (104 degrees Fahrenheit) ambient temperature, which is standard for UL 489 branch circuit breakers.
What regulatory approvals does the QC3100H carry for industrial applications?
This breaker is UL 489 listed and CSA certified, making it suitable for branch circuit protection in industrial control panels and OEM equipment.
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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!