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Eaton / Cutler-Hammer HKD3175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
HKD3175
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HKD3175
Quantity
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Eaton / Cutler-Hammer HKD3175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer HKD3175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKD3175 |
| Series | HKD |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Interchangeable Trip Unit |
Quantity
Eaton / Cutler-Hammer HKD3175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKD3175-R |
| Series | HKD |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Interchangeable Trip Unit |
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Description
Built for demanding industrial applications, the HKD3175 is a 175-amp, three-pole molded case circuit breaker in the Eaton Series C lineup. This K-frame unit utilizes thermal magnetic trip technology to deliver precise long-time and instantaneous (LI) protection. It mounts securely into compatible Eaton panelboards and motor control centers, acting as a high-performance substitute for standard KD3175 models. With a 65kAIC rating at 480VAC, it safely clears severe electrical faults.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKD3175 |
| Series | HKD |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 3 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Interchangeable Trip Unit |
Product FAQs
6 answersIs the HKD3175 interchangeable with older Westinghouse HKD breakers?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse lines. The current Series C HKD3175 is a direct replacement for legacy Westinghouse and Cutler-Hammer breakers with the exact same catalog number.
What is the difference between the KD3175 and the HKD3175?
The HKD3175 is the high-interrupting version of the standard KD frame. Both share the same physical dimensions and mounting footprint, but the HKD provides a higher interrupting rating of 65kA at 480VAC compared to the standard 35kA rating of the KD.
Are lugs included with the HKD3175?
Yes, this breaker ships complete with factory-installed line and load side lug terminals. The standard lugs accept wire sizes ranging from 3 AWG to 350 kcmil.
How is the trip unit configured on this breaker?
It uses a non-interchangeable thermal-magnetic trip unit. The thermal element provides fixed long-time overload protection at 175 amps, while the magnetic instantaneous pickup for short-circuit protection is adjustable.
Can the HKD3175 be used in DC circuits?
Yes, this breaker is rated for direct current applications up to 250VDC, providing a 22kA interrupting capacity.
What types of enclosures accept this K-Frame breaker?
This panel-mount breaker is designed for installation in Eaton Series C panelboards, switchboards, and motor control centers.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Total 5 star reviews: 4 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
4 reviews
- ASAaron S.Verified BuyerReviewingEaton / Cutler-Hammer HKD3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/13/26Worked as advertised
Don't forget the lug kit if needed
- LHLarry H.Verified BuyerReviewingEaton / Cutler-Hammer HKD3200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/19/25It was great
New breaker
- CSCatherine S.ReviewingEaton / Cutler-Hammer HKD3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/24/22Great
Great Service / Prompt Delivery
- FSFrank S.ReviewingEaton / Cutler-Hammer HKD3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/23/17Breaker purchase
Purchased breaker at a great price, was in stock and shipped it out right away. Will shop at this site again in the future.