Eaton / Cutler-Hammer LA3225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer LA3225 - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for legacy industrial systems, the Eaton LA3225 delivers robust 225A overcurrent protection. This 3-pole L-Frame breaker is engineered to mount into vintage Westinghouse PRL4 panelboards, switchboards, and motor control centers. While it serves as a functional substitute for HLD3225 and KD3225 models, it is replaced by the newer Series C LD3225. The unit provides a 30kAIC rating at 480VAC and includes an interchangeable thermal-magnetic trip with adjustable magnetic settings.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | LA3225-R |
| Series | LA |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse PRL4 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 | Lugs |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit |
Product FAQs
6 answersWhat equipment is the LA3225 circuit breaker designed to fit?
This bolt-on L-frame breaker is compatible with legacy Westinghouse PRL4 panelboards, as well as various switchboards and motor control centers designed for L-frame dimensions.
How is the trip unit configured on this breaker?
The LA3225 features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element for short-circuit protection. The magnetic pickup can be adjusted using the dials on the face of the breaker to coordinate with downstream devices.
What type of conductors can be terminated on the LA3225 lugs?
The standard mechanical lugs on this breaker are dual-rated for both aluminum and copper conductors, accepting wire sizes from 4 AWG up to 350 kcmil. Always apply an appropriate oxide inhibitor when terminating aluminum conductors.
Is the LA3225 still actively manufactured?
No, the original Westinghouse LA3225 is obsolete. Eaton acquired the Westinghouse distribution equipment line and Cutler-Hammer, so this breaker may carry any of those three brand names depending on its exact date of manufacture.
How does the interrupting capacity of the LA3225 change between AC and DC systems?
The LA3225 provides up to 42kA of interrupting capacity at 240VAC, but when applied to DC systems, it is rated for a maximum of 250VDC with a 10kA interrupting capacity. Always verify the available fault current of your specific application before installation.
What safety considerations apply when adjusting the magnetic trip settings?
Adjustments to the magnetic trip dials should only be performed by a qualified electrician or engineer based on a proper coordination study. Incorrect settings can lead to nuisance tripping or failure to clear a fault, compromising system safety.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
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?