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Eaton / Cutler-Hammer LA3150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
LA3150
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
LA3150
Quantity
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Eaton / Cutler-Hammer LA3150 - 150A 3 Pole Molded Case Circuit Breaker
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Description
Designed to handle demanding electrical loads, the LA3150 is a 150-amp, 3-pole molded case circuit breaker for commercial facilities. This bolt-on unit fits Westinghouse PRL4 panelboards and motor control centers. It serves as a replacement for legacy systems and is superseded by the Eaton LD3150. Featuring a 30 kAIC capacity at 480VAC, it includes an interchangeable trip unit with adjustable magnetic settings to accommodate specific requirements.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | LA3150 |
| Series | LA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | LA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse PRL4 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 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 |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
4 answersWhat equipment is compatible with the LA3150 circuit breaker?
It is designed to bolt into legacy Westinghouse PRL4 panelboards, switchboards, and motor control centers.
What wire sizes are supported by the LA3150 lugs?
The terminals accept either a single 1 AWG to 600 kcmil wire or dual 1 AWG to 250 kcmil wires per phase. Both aluminum and copper conductors are supported.
How is the trip unit configured on the LA3150?
It uses a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Will this replace an original Westinghouse LA3150 breaker?
Yes. Eaton acquired the Westinghouse electrical distribution line, so the Eaton or Cutler-Hammer LA3150 serves as a direct drop-in replacement for the original Westinghouse LA3150.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
Total 5 star reviews: 13 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
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?