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Eaton / Cutler-Hammer HFD1040 Molded Case Circuit Breaker
- 40A
- 1 Pole
- Bolt-On
Eaton / Cutler-Hammer
HFD1040
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HFD1040
Quantity
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Eaton / Cutler-Hammer HFD1040 - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
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Eaton / Cutler-Hammer HFD1040 - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFD1040 |
| Series | HFD |
| Amperage | 40A |
| 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 | 14-1/0 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, Handle Lock |
|---|---|
| Accessories | Load Side Lugs |
| Standards | HACR, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Sold out
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Eaton / Cutler-Hammer HFD1040 - 40A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFD1040-R |
| Series | HFD |
| Amperage | 40A |
| 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 | 14-1/0 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, Handle Lock |
|---|---|
| Accessories | Load Side Lugs |
| Standards | HACR, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
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Description
Engineered for commercial and industrial applications, the Eaton HFD1040 is a single-pole, 40A molded case circuit breaker from the Series C F-Frame family. It installs into compatible Eaton panelboards, switchboards, and motor control centers using a secure bolt-on connection. Rated for 65kAIC at 277VAC, this thermal-magnetic breaker provides reliable long-time and instantaneous (LI) trip functions. It serves as a direct predecessor to the PDG21M0040TFFL successor model.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HFD1040 |
| Series | HFD |
| Amperage | 40A |
| 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 | 14-1/0 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, Handle Lock |
|---|---|
| Accessories | Load Side Lugs |
| Standards | HACR, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, High Interrupting Capacity, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
9 answersWhat panelboards accept the HFD1040?
It fits Eaton Series C panelboards, switchboards, and motor control centers designed for F-Frame breakers. Verify the specific enclosure accepts bolt-on FD frame breakers.
Is the HFD1040 suitable for direct current (DC) control circuits?
Yes, this breaker is rated for up to 125VDC with a 10kAIC interrupting capacity, making it appropriate for DC control panels and battery systems within its voltage limit.
What is the difference between FD and HFD breakers?
The HFD series features a high interrupting capacity (100kAIC at 240VAC) compared to the standard FD series (65kAIC at 240VAC). Both share the same physical F-Frame dimensions and mounting footprint.
Can I use the HFD1040 to replace an older Westinghouse F-Frame breaker?
Yes, Eaton acquired Cutler-Hammer and Westinghouse distribution equipment lines. The HFD1040 is a direct replacement for older Westinghouse HFD 1-pole breakers with the same specifications.
Are the thermal and magnetic trip settings adjustable on this model?
No, the HFD1040 features fixed thermal and fixed magnetic trip elements. If adjustable trip settings are required, a different frame or electronic trip unit must be selected.
Does this breaker mount on a standard DIN rail?
No, the HFD1040 is a bolt-on molded case circuit breaker designed for panelboard and switchboard chassis mounting, not DIN rail applications.
Can the HFD1040 be installed in a 3-phase system?
No, the HFD1040 is a 1-pole breaker designed for single-phase circuits. For 3-phase applications, a 3-pole F-Frame breaker like the HFD3040 is required.
Does the HFD1040 require a specific mounting hardware kit?
Yes, installing this bolt-on breaker into a Series C panelboard or switchboard requires the appropriate Eaton mounting hardware kit, which is typically sold separately based on the enclosure type.
What is the standard replacement lug for the HFD1040?
The standard replacement lug for 15-100A Eaton Series C F-Frame breakers is catalog number T100FB.
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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