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Eaton / Cutler-Hammer JD3250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
JD3250
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
JD3250
Quantity
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Eaton / Cutler-Hammer JD3250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer JD3250 - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JD3250 |
| Series | JD |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| 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 | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Interchangeable Trip |
Quantity
Eaton / Cutler-Hammer JD3250 - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JD3250-R |
| Series | JD |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| 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 | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Interchangeable Trip |
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Description
Part of the proven Series C family, this 250A three-pole breaker delivers reliable long-time and instantaneous protection for commercial and industrial environments. It installs into Eaton switchboards, motor control centers, and panelboards requiring a J-Frame footprint. Rated for 35kAIC at 480VAC, the device includes reverse feed capabilities and an interchangeable trip unit, offering flexibility before upgrading to the newer Power Defense PDG3 series.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JD3250 |
| Series | JD |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Panel Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| 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 | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Interchangeable Trip |
Product FAQs
6 answersWhat trip unit is used in the JD3250 breaker?
It uses the JT3250T interchangeable thermal-magnetic trip unit. This unit is compatible across the standard, high, and extra-high interrupting J-Frame models and features fixed thermal and adjustable magnetic protection.
How does the adjustable magnetic trip function operate?
The adjustable magnetic dial allows you to configure the instantaneous short-circuit pickup threshold. This adjustability is critical for proper selective coordination with downstream breakers or for riding through motor inrush currents without nuisance tripping.
What are the standard lug part numbers for this J-Frame breaker?
The standard aluminum lug kit that accepts 4 AWG to 350 kcmil wire is catalog number TA250KB. If your installation requires copper-only terminals, the compatible part number is T250KB.
What is the recommended tightening torque for the standard 4 AWG to 350 kcmil lugs?
When landing conductors on the standard TA250KB aluminum lugs, the manufacturer specifies a tightening torque of 275 lb-in. Always verify with the torque specifications printed directly on the breaker or lug before terminating.
Which panelboards and switchboards will accept this breaker?
The JD3250 is designed for Eaton Series C Panelboards, Switchboards, and Motor Control Centers. Due to the shared physical architecture, it is also backward compatible with legacy Cutler-Hammer and Westinghouse Series C infrastructure.
What is the difference between the JD3250, HJD3250, and JDC3250 catalog numbers?
These prefix variations designate the short-circuit interrupting capacity. The JD3250 is the standard tier (35kA at 480VAC). The HJD3250 is the high-interrupting version (65kA at 480VAC), and the JDC3250 is the extra-high interrupting version (100kA at 480VAC). All three share the exact same physical dimensions and accept the same trip units.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 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
2 reviews
- DCDanielson C.ReviewingSiemens JD63F400 FrameI recommend this productRated 5 out of 5 stars1/17/24Perfect
Just what I was looking for!
- IHIsaac H.Rated 5 out of 5 stars3/11/21GREAT STUFF
GOOD PRODUCTS AT A GREAT PRICE