Eaton / Cutler-Hammer J3150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer J3150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Manufactured under the Cutler-Hammer and Westinghouse brands, this 150A MCCB serves commercial facilities. It delivers robust overcurrent safety for heavy-duty networks requiring a 3-pole configuration. The bolt-on style ensures a secure connection within older Westinghouse panelboards. When maintenance requires an upgrade, the JD3150 serves as the designated modern substitute. Equipped with a 35 kAIC capacity at 480VAC, it includes an adjustable magnetic trip.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | J3150-R |
| Series | J |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Lugs included |
| Standards | CSA C22.2 No. 5.1, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Trip-Free Mechanism |
Product FAQs
5 answersWhat is the modern replacement for the Cutler-Hammer J3150?
The Eaton Series C JD3150 is the designated modern substitute for the legacy J3150. It serves as a direct drop-in replacement for older Westinghouse and Cutler-Hammer J-frame applications.
What equipment is the J3150 circuit breaker designed to fit?
This J-frame breaker is compatible with legacy Westinghouse and Cutler-Hammer panelboards, switchboards, and motor control centers designed to accept bolt-on J-frame breakers.
What is the magnetic trip adjustment range for the 150A J3150?
The J3150 features an adjustable magnetic trip unit. For the 150A model, the magnetic trip range is adjustable from 750A to 1500A, allowing for customization based on the specific inrush current of the load.
Which standard lug kit is used with the J3150 breaker?
The J3150 typically utilizes the TA250KB standard line and load lug terminals, which accept 4 AWG to 350 kcmil aluminum or copper conductors.
Is the J3150 suitable for DC voltage systems?
Yes, in addition to its AC ratings, this breaker is rated for use on 250 VDC systems with a 10 kAIC interrupting capacity, which is often required for UPS systems and ungrounded battery circuits.
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Reviews
Review summary
Customers rate this product 4.0 out of 5 based on 1 review.
- MCMARK C.Verified BuyerReviewingITE/Siemens J20M Control RelayI recommend this productRated 4 out of 5 stars2/4/26it control relay but it was just the coil for the relay. do you have a J20A40 CONTACTS?
it control relay but it was just the coil for the relay. do you have a J20A40 CONTACTS?