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Eaton / Cutler-Hammer HKA3175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
HKA3175
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HKA3175
Quantity
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Eaton / Cutler-Hammer HKA3175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Quantity
Eaton / Cutler-Hammer HKA3175 - 175A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKA3175 |
| Series | HKA |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 4 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, Lug Kit |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Mark 75 Series, HACR Rated, Interchangeable Trip |
Quantity
Eaton / Cutler-Hammer HKA3175 - 175A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKA3175-R |
| Series | HKA |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 4 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, Lug Kit |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Mark 75 Series, HACR Rated, Interchangeable Trip |
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Description
Built for commercial and industrial applications, this 3-pole, 175A molded case circuit breaker provides reliable thermal-magnetic protection. The K-Frame unit installs into legacy Westinghouse and Eaton Pow-R-Line C panelboards, switchboards, or motor control centers. It serves as a direct replacement and can be substituted with the KD3175. Rated for 600VAC, this Mark 75 series MCCB features an interchangeable trip unit and delivers a 65kAIC interrupting capacity at 240V.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKA3175 |
| Series | HKA |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 4 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, Lug Kit |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Mark 75 Series, HACR Rated, Interchangeable Trip |
Product FAQs
6 answersCan the Eaton HKA3175 replace older Westinghouse circuit breakers?
Yes. Eaton acquired the Westinghouse distribution equipment line, making the HKA3175 a direct replacement for legacy Westinghouse and Cutler-Hammer HKA3175 breakers.
What panelboards are compatible with the HKA3175?
This K-Frame breaker is designed for bolt-on installation in Eaton Pow-R-Line C panelboards, legacy Westinghouse panelboards, switchboards, and motor control centers.
How is the trip unit configured on the HKA3175?
The breaker utilizes a thermal magnetic trip unit equipped with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Can the HKA3175 be substituted with a KD3175 breaker?
Yes. The HKA3175 can be substituted with the KD3175, as both are 175A K-Frame breakers that share the same physical dimensions and mounting hardware for Eaton and Westinghouse enclosures.
Does the HKA3175 accept field-installable accessories?
Yes. As an Eaton K-Frame circuit breaker, it is compatible with standard internal accessories including shunt trips, auxiliary switches, and undervoltage releases.
Does the HKA3175 feature a push-to-trip button?
Yes. The breaker includes a push-to-trip button to manually verify the tripping function and periodically exercise the mechanical operating mechanism for safety and maintenance.
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