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Eaton / Cutler-Hammer JD3125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Panel Mount
Eaton / Cutler-Hammer
JD3125
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
JD3125
Quantity
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Eaton / Cutler-Hammer JD3125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer JD3125 - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JD3125 |
| Series | JD |
| Amperage | 125A |
| 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 JD3125 - 125A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JD3125-R |
| Series | JD |
| Amperage | 125A |
| 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
Built to handle demanding electrical loads, the Eaton JD3125 is a 125A, three-pole molded case circuit breaker. It features a robust thermal-magnetic trip unit equipped with adjustable instantaneous protection functions. This J-Frame device installs into standard Series C switchboards, panelboards, and motor control centers. For modernizations, it is cross-referenced to the Power Defense PDG33G0125TFAN. Rated for 35kA at 480VAC, the breaker is HACR rated and allows for reverse feeding.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JD3125 |
| Series | JD |
| Amperage | 125A |
| 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
10 answersWhat enclosures and panels are compatible with the JD3125 breaker?
This J-Frame breaker is designed for use in Eaton Series C panelboards, switchboards, and motor control centers.
What is the difference between the JD3125 and the JDB3125?
The JD3125 features an interchangeable trip unit, allowing the trip unit to be swapped or upgraded without replacing the entire breaker frame. The JDB3125 has a non-interchangeable, factory-sealed trip unit.
What is the modern Eaton replacement for the JD3125?
For modernizations, the JD3125 cross-references to the Eaton Power Defense series, specifically catalog number PDG33G0125TFAN.
Is the JD3125 rated for reverse feeding?
Yes, this thermal-magnetic molded case circuit breaker allows for reverse feeding, meaning the line and load connections can be swapped if required by your application.
Does the JD3125 come with lug terminals?
Yes, it includes standard line and load side lugs that accept 4 AWG to 350 kcmil aluminum or copper wire.
Can this breaker be used in DC applications?
Yes, the JD3125 is DC rated, providing up to 10kA interrupting capacity at 250VDC.
How do I adjust the trip settings on the JD3125?
This breaker features a fixed thermal and adjustable magnetic trip unit. The instantaneous magnetic trip response can be adjusted using the dials located on the front of the trip unit.
What is the purpose of the adjustable magnetic trip on this breaker?
The adjustable magnetic trip allows electricians to customize the instantaneous short-circuit response, ensuring optimal protection and coordination with other devices in the electrical system.
Is the JD3125 HACR rated?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
What does the LI trip function code mean on the JD3125?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) overload protection and Instantaneous (I) short-circuit protection.
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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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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