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Eaton / Cutler-Hammer HFA3070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
HFA3070
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HFA3070
Quantity
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Eaton / Cutler-Hammer HFA3070 - 70A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Engineered for commercial power distribution, the Eaton HFA3070 provides robust thermal-magnetic protection. This 70A, three-pole device is a staple in legacy systems requiring dependable performance under heavy loads. It installs securely into Eaton Series C panelboards, switchboards, and motor control centers. This unit is officially replaced by the newer HFD3070 model. Rated to handle 25 kAIC at 480VAC, it features non-interchangeable trip units and includes load-side lugs.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFA3070-R |
| Series | HFA |
| 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 |
| Frame Type | HFA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C 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, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
6 answersWhat is the direct replacement for the legacy HFA3070 circuit breaker?
The HFA3070 is a legacy breaker. Its official factory replacement in the Eaton lineup is the newer HFD3070 model.
Which panelboards are compatible with the HFA3070?
This bolt-on breaker is designed to install securely into Eaton Series C panelboards, as well as compatible Eaton switchboards and motor control centers.
What wire sizes are supported by the standard lugs on this breaker?
The standard load-side lugs accept 14 AWG to 1/0 AWG copper or aluminum (Cu/Al) conductors.
Is the HFA3070 suitable for DC voltage systems?
Yes, it is rated for DC applications and provides an interrupting capacity of 10 kAIC at 250VDC.
Can the trip unit on the HFA3070 be adjusted for different loads?
No, this breaker uses a thermal magnetic trip unit with fixed long-time and fixed instantaneous trip functions. The settings are non-interchangeable and cannot be adjusted.
Is the HFA3070 HACR rated for HVAC applications?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment. It is also rated for reverse feed applications.
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