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Eaton / Cutler-Hammer HF3070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
HF3070
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HF3070
Quantity
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Eaton / Cutler-Hammer HF3070 - 70A 3 Pole Molded Case Circuit Breaker
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Eaton / Cutler-Hammer HF3070 - 70A 3 Pole Molded Case Circuit Breaker
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| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HF3070 |
| Series | HF |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line C Panelboards, Westinghouse F-Frame Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed |
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Eaton / Cutler-Hammer HF3070 - 70A 3 Pole Molded Case Circuit Breaker
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Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HF3070 |
| Series | HF |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line C Panelboards, Westinghouse F-Frame Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed |
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Description
Designed for commercial facilities, the Eaton HF3070 is a 70A molded case circuit breaker from the proven Mark 75 family. It offers dependable thermal-magnetic trip functions for heavy-duty electrical networks. This F-frame device mounts into Eaton Pow-R-Line C panelboards, switchboards, and motor control centers. It also provides a seamless replacement solution for aging Westinghouse F-frame infrastructure.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HF3070 |
| Series | HF |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Pow-R-Line C Panelboards, Westinghouse F-Frame Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed |
Product FAQs
6 answersWhich panelboards are compatible with the HF3070 breaker?
This F-Frame breaker is designed for use in Eaton Pow-R-Line C panelboards, legacy Westinghouse F-Frame panelboards, switchboards, and motor control centers.
Can the Eaton HF3070 replace an older Westinghouse HF3070?
Yes. Eaton acquired the Westinghouse distribution equipment division. The current Eaton or Cutler-Hammer HF3070 is a direct, interchangeable replacement for the legacy Westinghouse HF3070.
What does the Mark 75 family designation indicate?
Mark 75 is a legacy Westinghouse and Cutler-Hammer designation for high-interrupting capacity breakers. The modern Eaton HF3070 retains this physical frame and design lineage, ensuring backward compatibility with older Mark 75 installations.
What type of wire can be used with the standard lugs on this breaker?
The factory-installed lugs accept both copper and aluminum conductors ranging from 14 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation as outlined on the breaker faceplate.
Is the HF3070 suitable for direct current (DC) systems?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250VDC, making it suitable for specific industrial control or battery system panels that require DC circuit protection.
Can the trip curve be adjusted on the HF3070?
No. This breaker features a fixed thermal and fixed magnetic trip unit. If your application requires adjustable long-time or instantaneous pickup settings, you will need a breaker with an electronic trip unit instead.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 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
2 reviews
- TJTravis J.ReviewingSiemens HF364 Heavy Duty Safety SwitchI recommend this productRated 5 out of 5 stars5/18/22fast!
wow great service
- SNShane N.ReviewingFederal Pacific HF631100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/28/18Excellent Service and Fast Shipping
Breaker was shipped from the US to remote northern LAbrador, Canada very quickly and was in excellent condition. I would highly recommend SuperBreakers.