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Eaton / Cutler-Hammer HFD1070 Molded Case Circuit Breaker
- 70A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
HFD1070
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HFD1070
Quantity
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Eaton / Cutler-Hammer HFD1070 - 70A 1 Pole Molded Case Circuit Breaker
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Description
Part of the proven Series C family, this 70A single-pole breaker delivers robust protection for commercial and industrial electrical systems. It installs into Eaton panelboards, switchboards, and motor control centers requiring bolt-on F-frame components. Featuring a high interrupting capacity of 65kA at 277VAC, the unit utilizes fixed thermal and magnetic trip units for consistent performance. Note that this legacy model is succeeded by the Power Defense PDG21M0070TFFL.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFD1070 |
| Series | HFD |
| Amperage | 70A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 277VAC, 10kA @ 125VDC, 35kA @ 347VAC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14 AWG - 1/0 AWG |
| 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, Motor Operator |
|---|---|
| Accessories | Load Side Lugs (Included) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhich panelboards are compatible with the Eaton HFD1070 circuit breaker?
The HFD1070 is designed for use in Eaton Series C panelboards, including Pow-R-Line 3a (PRL3a) and Pow-R-Line 4 (PRL4), as well as compatible commercial switchboards and motor control centers.
Can I use the Eaton HFD1070 to replace an older Cutler-Hammer or Westinghouse breaker?
Yes. Eaton acquired both Cutler-Hammer and the distribution equipment division of Westinghouse. The HFD1070 is a direct, exact replacement for legacy Cutler-Hammer and Westinghouse breakers sharing the same HFD1070 catalog number.
What does the H in the HFD1070 catalog number indicate?
The H designates this as a High-interrupting capacity breaker within the Series C F-Frame family. It provides a higher short-circuit interrupting rating compared to standard FD or FDB frames, delivering up to 100kAIC at 240VAC and 65kAIC at 277VAC.
Is the HFD1070 suitable for direct current applications?
Yes, this 1-pole breaker is rated for DC applications up to 125VDC, providing a short-circuit interrupting rating of 10kAIC at 125VDC.
What is the standard terminal lug and wire range for the HFD1070?
The standard pressure-type line and load terminal lug for the 70A HFD1070 is catalog number 3T100FB. It accepts aluminum or copper wire ranging from 14 AWG to 1/0 AWG.
Are the physical dimensions of the HFD1070 the same as standard FD1070 breakers?
Yes. All 1-pole Series C F-Frame breakers, including the EHD, FD, and HFD models, share the exact same physical footprint. A 1-pole model measures 6.00 inches high, 1.38 inches wide, and 3.38 inches deep.
Can I install the HFD1070 in a standard residential load center?
No. The HFD1070 is a bolt-on molded case circuit breaker designed for commercial and industrial Series C panelboards. It is not compatible with standard residential plug-on or bolt-on load centers, such as the Eaton BR or CH series.
Does the HFD1070 feature adjustable trip settings?
No. The HFD1070 features a non-interchangeable, fixed thermal and fixed magnetic trip unit. The trip settings are factory calibrated for 70 amps and cannot be adjusted in the field.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 21 reviews.
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Rating
21 reviews
- CHcarl h.Verified BuyerReviewingEaton / Cutler-Hammer HFD3200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/20/26Breaker
Breaker shipped out and we received it super quick.
- DLDeanna L.Verified BuyerReviewingEaton / Cutler-Hammer HFD3150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/19/26Eaton / Cutler-Hammer HFD3150 - 150A 3 Pole Molded Case Circuit Breaker
We needed more breakers ASAP and once again, Michael David came thru like he always does. We are a 24/7/ emergency electrical restoration companyso most of our orders are always needed in a rush and SuperBreakers is always my go to!.
- RFRon F.Verified BuyerReviewingEaton / Cutler-Hammer HFD3045 - 45A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/9/26HFD3045
Perfect breaker & great price/delivery. It's very easy to schedule around SB as their projected delivery times are accurate.
- CPChristopher P.Verified BuyerReviewingEaton / Cutler-Hammer HFD3020L - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/13/26Fast and Cost effective
Superbreakers Is always my first palce to look for harder to source breakers for a good price, and fast turnaround.
- DSDavid S. B. D.Verified BuyerReviewingEaton / Cutler-Hammer HFD3060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/6/26Breaker
Great response time and product