Eaton / Westinghouse J2150 Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Quantity
Eaton / Westinghouse J2150 - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the classic J-Frame series, this 150A, 2-pole molded case circuit breaker provides reliable thermal-magnetic protection for commercial systems. It handles demanding loads across 240V, 480V, and 600VAC networks. As a direct replacement component, it mounts into legacy Westinghouse CDP and FDP panelboards, plus Eaton Pow-R-Line 3a and 4 enclosures. For modern upgrades, it is replaced by the JD2150. Rated at 25kAIC at 240V, it features an adjustable magnetic trip and is HACR rated.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | J2150-R |
| Series | J |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 22kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse CDP/FDP Panelboards, Eaton Pow-R-Line 3a/4 Panelboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil |
| 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, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40°C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhich panelboards are compatible with the J2150 circuit breaker?
The J2150 is designed for installation in Westinghouse CDP and FDP panelboards, Eaton Pow-R-Line 3a and 4 panelboards, and compatible motor control centers.
Are Westinghouse and Eaton J2150 breakers interchangeable?
Yes. Eaton acquired the Westinghouse electrical distribution business. A J2150 breaker is the exact same Series C J-frame device whether it is branded as Westinghouse, Cutler-Hammer, or Eaton.
How does the adjustable magnetic trip function operate on this breaker?
The J2150 features a thermal-magnetic trip unit with a fixed thermal element for standard overload protection and an adjustable magnetic element. The adjustable magnetic setting allows you to fine-tune the instantaneous short-circuit response to accommodate specific inrush currents or load requirements.
What wire sizes are accepted by the lugs on the J2150?
The standard lugs on this breaker accept wire gauges ranging from 4 AWG up to 350 kcmil. Always verify the conductor material and apply the manufacturer specified torque during installation.
Is the J2150 rated for use in DC electrical systems?
Yes, this breaker is rated for direct current applications up to 250VDC, where it provides an interrupting capacity of 10kA.
What type of connection does the J2150 require?
This is a bolt-on circuit breaker. It fastens directly to the panelboard bus with bolts, ensuring a secure and reliable mechanical connection that is ideal for industrial environments.
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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?