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Eaton / Cutler-Hammer HKD3100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
HKD3100
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HKD3100
Quantity
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Eaton / Cutler-Hammer HKD3100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer HKD3100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKD |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | K |
|---|---|
| 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 HKD3100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKD |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | K |
|---|---|
| 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
Designed for heavy-duty power distribution, the Eaton HKD3100 is a 3-pole, 100A molded case circuit breaker. It utilizes proven thermal-magnetic trip technology to deliver long-time and instantaneous (LI) protection. This K-Frame component fits into Eaton Series C panelboards, switchboards, and motor control centers. It serves as a drop-in upgrade that replaces the standard KD3100 breaker. Boasting a 65kAIC rating at 480VAC, the unit offers adjustable magnetic trip settings and reverse feed.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKD |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | K |
|---|---|
| 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
5 answersWhat is the difference between Eaton KD, HKD, and KDC circuit breakers?
The primary difference is their short-circuit interrupting ratings. KD is the standard capacity model (65kA at 240VAC, 35kA at 480VAC). The HKD provides high interrupting capacity (100kA at 240VAC, 65kA at 480VAC), and the KDC offers ultra-high interrupting capacity (200kA at 240VAC, 100kA at 480VAC).
Is the HKD3100 suitable for reverse feed applications?
Yes. Eaton Series C K-frame circuit breakers equipped with thermal magnetic trip units are suitable for reverse feed use.
What is the magnetic trip adjustment range for this 100A breaker?
The instantaneous magnetic trip is adjustable from 5 to 10 times the continuous current rating. For this 100A breaker, that provides an adjustable magnetic trip range of 500A to 1000A.
What are the standard lugs included with the HKD3100?
This breaker comes factory installed with TA300K aluminum line and load lugs, which are rated for both copper and aluminum conductors.
What internal accessories are compatible with the Series C K-frame?
K-frame circuit breakers can accept field installable internal accessories, including shunt trips, auxiliary switches, bell alarm switches, and undervoltage release modules. These install inside the accessory cavities under the front cover.
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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.