Eaton / Westinghouse LA2350 Molded Case Circuit Breaker
- 350A
- 2 Pole
- Unit Mount
Quantity
Eaton / Westinghouse LA2350 - 350A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the legacy L-Frame series, the Eaton LA2350 provides a seamless fit for older commercial and industrial electrical systems. This 2-pole, 350-amp molded case circuit breaker is engineered for unit mount installations in classic Westinghouse panelboards and Eaton Pow-R-Line 4 switchboards. By matching the original dimensions and mounting hardware, it eliminates the need for costly retrofit kits. It delivers 42kAIC at 240V and features an interchangeable thermal-magnetic trip unit.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | LA2350-R |
| Series | LA |
| Amperage | 350A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | LA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse Panelboards, Eaton Pow-R-Line 4 Panelboards, Switchboards |
| Wire Gauge | (1) 1 AWG-600 kcmil (Al/Cu) or (2) 1 AWG-250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, 2-Pole in 3-Pole Housing |
Product FAQs
9 answersWhat panelboards are compatible with the LA2350 circuit breaker?
This breaker is designed for use in legacy Westinghouse panelboards, Eaton Pow-R-Line 4 panelboards, and compatible switchboards.
Are Eaton and Westinghouse LA2350 breakers interchangeable?
Yes. Eaton acquired the Westinghouse electrical distribution equipment division. An Eaton LA2350 offers the exact same form, fit, and function as the original Westinghouse LA2350.
What wire sizes do the standard lugs on the LA2350 accept?
The standard lugs accommodate either one 1 AWG to 600 kcmil conductor or two 1 AWG to 250 kcmil conductors. They are rated for both aluminum and copper wire.
Does the LA2350 include both line and load lugs?
This specific configuration includes load side lugs. Because it is a unit mount breaker designed for panelboards and switchboards, the line side typically bolts directly to the bus. Always verify your specific bus connection requirements before installation.
How does the trip unit operate on the LA2350?
It features an interchangeable thermal magnetic trip unit with fixed thermal protection for overloads and an adjustable magnetic setting for short circuit protection.
Is the LA2350 suitable for direct current systems?
Yes, this breaker is rated for use in DC applications up to 250VDC, providing a 20kA interrupting capacity at that voltage.
How is the LA2350 installed into a panel?
This is a unit mount, bolt-on circuit breaker. It bolts directly to the chassis or bus of the panelboard or switchboard rather than plugging in.
Can the trip unit on the LA2350 be swapped in the field?
Yes, the LA frame features an interchangeable trip unit design. This allows you to change the trip rating without replacing the entire breaker frame, provided the new trip unit is compatible with the LA frame.
What type of protection does the LI trip function provide?
The LI designation indicates Long Time and Instantaneous protection. Long Time handles standard thermal overload conditions, while the Instantaneous function provides immediate magnetic tripping during a short circuit.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
- RGRobert G.Verified BuyerReviewingSquare D LA36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26LA36400
Perfectly boxed and arrived on time. Thanks for the shirt and stickers as well.
- CECraig E.Verified BuyerReviewingEaton / Cutler-Hammer LA3600 - 600A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/13/25Westinghouse breaker
Excellent customer service and quick shipping
- CLClifton L.Verified BuyerReviewingSquare D LA36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/30/25estimator
Good
- BCBenjamin C.Verified BuyerReviewingEaton / Cutler-Hammer LA3225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Refurbished Breaker
Breaker seems to be working great, no complaints from Client
- JMJerry M.ReviewingEaton / Cutler-Hammer LA3400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/14/23Where is my breaker?
Where is my breaker?