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Eaton / Cutler-Hammer HKD3250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
HKD3250
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
HKD3250
Quantity
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Eaton / Cutler-Hammer HKD3250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer HKD3250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKD |
| Amperage | 250A |
| 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 | 250 kcmil - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch |
|---|---|
| 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 |
Quantity
Eaton / Cutler-Hammer HKD3250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKD |
| Amperage | 250A |
| 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 | 250 kcmil - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch |
|---|---|
| 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 |
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Description
Built for heavy-duty power distribution, the Eaton HKD3250 is a 250A, 3-pole molded case circuit breaker. As part of the Series C K-Frame lineup, it utilizes thermal-magnetic trip technology (LI) for reliable protection. This unit mounts into compatible Eaton switchboards and motor control centers. It easily replaces legacy KD3250 models and accommodates 250 to 500 kcmil conductors. With a 65 kAIC rating at 480VAC, this HACR-rated breaker is reverse feed capable.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | HKD |
| Amperage | 250A |
| 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 | 250 kcmil - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 250 kcmil |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch |
|---|---|
| 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 |
Product FAQs
5 answersWhat does the "H" in the HKD3250 part number indicate?
The "H" identifies this as a high-interrupting capacity version of the Eaton Series C K-frame. It provides increased short-circuit protection limits compared to the standard KD3250, while maintaining the exact same physical dimensions.
Are the trip units in the HKD3250 breaker interchangeable?
Yes, Series C K-frame breakers utilize an interchangeable thermal-magnetic trip unit design. The factory-installed 250-amp trip block (part number KT3250T) can be removed and replaced with alternate amperages up to the frame's maximum capacity without replacing the entire breaker body.
How is the magnetic trip adjusted on this breaker?
The instantaneous magnetic trip function can be adjusted using the dial on the front of the trip unit. For this 250-amp model, the magnetic pickup can be dialed between 5 and 10 times the continuous current rating, providing a customizable instantaneous trip range of 1,250 to 2,500 amps.
Which replacement lug kit fits the HKD3250?
The standard factory line and load terminals for this model use lug kit part number TA350K. These pressure-type terminals accept either copper or aluminum wire.
Can the HKD3250 serve as a direct replacement for an older KD3250?
Yes. Because the HKD3250 shares the exact same physical footprint and mounting hardware requirements as the standard KD3250, it is a safe drop-in replacement. Upgrading to the HKD version simply provides your panel with a higher short-circuit interrupting capacity.
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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.