Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Eaton / Cutler-Hammer QC3070H Miniature Circuit Breaker
- 70A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
QC3070H
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QC3070H
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer QC3070H - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer QC3070H - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3070H |
| Series | QC |
| Amperage | 70A |
| 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) |
| Wire Gauge | 8 AWG - 1/0 AWG (Al/Cu) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, 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, Visual Trip Indicator, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
Sold out
Quantity
Eaton / Cutler-Hammer QC3070H - 70A 3 Pole Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3070H-R |
| Series | QC |
| Amperage | 70A |
| 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) |
| Wire Gauge | 8 AWG - 1/0 AWG (Al/Cu) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, 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, Visual Trip Indicator, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
Similar Items
50A 3 Pole Miniature Circuit Breaker
45A 3 Pole Miniature Circuit Breaker
100A 3 Pole Miniature Circuit Breaker
Description
Designed for higher current loads, the QC3070H is a 70A, three-pole miniature breaker from Eaton's Quicklag series. It provides essential protection for industrial and marine environments. Utilizing a cable-in/cable-out mounting style, this breaker installs securely into standard enclosures and control panels. A DIN rail adapter expands its compatibility. Featuring a 10kAIC rating at 240VAC, the unit includes a visual trip indicator, a trip-free mechanism, and supports 8-1/0 AWG wiring.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QC3070H |
| Series | QC |
| Amperage | 70A |
| 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) |
| Wire Gauge | 8 AWG - 1/0 AWG (Al/Cu) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, 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, Visual Trip Indicator, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip |
Product FAQs
4 answersDoes the QC3070H plug into a standard load center busbar?
No. The Quicklag QC series features a lug-to-lug, cable-in and cable-out design. It is intended for standalone panel mounting in control enclosures and does not plug or bolt onto a standard panelboard busbar.
Can the QC3070H be mounted on a DIN rail?
Yes. While it is natively designed for direct panel mounting via its built-in mounting feet, it can be installed on a standard DIN rail by adding a compatible Eaton Quicklag DIN rail adapter.
Will this replace an older Westinghouse QC3070H breaker?
Yes. Eaton acquired the Westinghouse and Cutler-Hammer circuit breaker lines. The current Eaton QC3070H is the direct replacement for legacy Westinghouse and Cutler-Hammer breakers sharing the exact same catalog number.
What type of wire connections does the QC3070H require?
This breaker uses box lug terminals on both the line and load sides, allowing for direct wire connections. It accepts aluminum or copper conductors, eliminating the need for specialized ring terminals.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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
Search
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!