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Eaton / Cutler-Hammer HKA3100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
HKA3100
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HKA3100
Quantity
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Eaton / Cutler-Hammer HKA3100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer HKA3100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKA3100 |
| Series | HKA |
| Amperage | 100A |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Mark 75, High Interrupting Capacity, Interchangeable Trip, HACR Rated |
Quantity
Eaton / Cutler-Hammer HKA3100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKA3100 |
| Series | HKA |
| Amperage | 100A |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Mark 75, High Interrupting Capacity, Interchangeable Trip, HACR Rated |
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Description
Belonging to the Mark 75 family, the HKA3100 is a 3-pole, 100A molded case circuit breaker. Built for commercial and industrial power distribution, it features an interchangeable thermal-magnetic trip unit with adjustable magnetic settings. This K-frame breaker installs into Westinghouse panelboards, Eaton Pow-R-Line C switchboards, and motor control centers. Rated for 35kAIC at 480VAC, it delivers high interrupting capacity and serves as a reliable cross-reference for HKD3100 and KD3100 models.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HKA3100 |
| Series | HKA |
| Amperage | 100A |
| 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 |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Mark 75, High Interrupting Capacity, Interchangeable Trip, HACR Rated |
Product FAQs
6 answersIs the Eaton HKA3100 a direct replacement for older Westinghouse HKA3100 breakers?
Yes. Eaton acquired the Westinghouse distribution equipment division and continues to manufacture the K-Frame series. The Eaton HKA3100 is an exact drop-in replacement for vintage Westinghouse HKA3100 breakers, avoiding the need for deadfront modifications.
What types of panelboards are compatible with the HKA3100 circuit breaker?
The HKA3100 is designed for use in Eaton Pow-R-Line C panelboards, as well as vintage Westinghouse CDP and FDP panelboards, switchboards, and motor control centers.
Can the HKA3100 circuit breaker be reverse fed?
Yes. The HKA3100 is suitable for reverse feed applications, allowing it to be wired with the supply power connected to either the line or load terminals.
What does the H in the HKA3100 catalog number indicate?
The H designates this as the high-interrupting capacity version of the standard KA-frame breaker. It provides an elevated interrupting rating of 65kA at 240VAC compared to standard K-Frame models.
How is the magnetic trip adjusted on the HKA3100?
The HKA3100 features a fixed thermal and adjustable magnetic trip unit. The instantaneous magnetic trip can typically be adjusted between 5 and 10 times the continuous ampere rating, which corresponds to a range of 500A to 1000A for this 100A breaker.
Does the HKA3100 feature an interchangeable trip unit?
Yes. The HKA3100 is equipped with an interchangeable thermal-magnetic trip unit, allowing the trip mechanism to be swapped or upgraded without replacing the entire breaker frame.
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