Eaton / Westinghouse KA2225 Molded Case Circuit Breaker
- 225A
- 2 Pole
- Bolt-On
Quantity
Eaton / Westinghouse KA2225 - 225A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Serving as a robust solution for industrial applications, the 225A KA2225 delivers dependable thermal-magnetic trip functionality. This two-pole K-frame unit handles demanding electrical loads. It fits legacy Westinghouse CDP panelboards, FDP enclosures, and motor control centers. Using this exact match avoids deadfront modifications required by the newer KD2225 substitute. Rated at 25kAIC at 240V and 14kAIC at 600V, it features an interchangeable trip unit and HACR certification.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | KA2225-R |
| Series | KA |
| Amperage | 225A |
| 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 | KA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Westinghouse CDP Panelboards, FDP 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, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side 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
8 answersWhat panelboards are compatible with the KA2225 circuit breaker?
The KA2225 is designed to fit legacy Westinghouse CDP and FDP panelboards, as well as compatible switchboards and motor control centers.
Can I use a KD2225 to replace the KA2225?
While the KD2225 is a newer K-frame substitute, using it often requires deadfront modifications to your panel. Replacing your breaker with an exact KA2225 match avoids these modifications and ensures a direct drop-in fit.
Is there a difference between the Eaton KA2225 and the Westinghouse KA2225?
No. Eaton acquired the Westinghouse distribution equipment division, so this breaker may be branded as Eaton, Cutler-Hammer, or Westinghouse. They are the exact same physical breaker and are fully interchangeable.
What wire sizes do the load side lugs on the KA2225 accept?
The standard load side lugs on this breaker accept 4 AWG to 350 kcmil aluminum or copper wire.
How does the KA2225 mount into a panelboard?
The KA2225 is a bolt-on circuit breaker. It bolts directly to the busbars in compatible K-frame enclosures and panelboards.
Can the KA2225 be used in DC electrical systems?
Yes, this breaker is rated for use in DC applications up to 250VDC, with a maximum interrupting capacity of 10kA at that voltage.
Does the KA2225 provide ground fault or arc fault protection?
No, the KA2225 features a standard thermal-magnetic trip unit that provides long-time and instantaneous overcurrent protection. It does not include ground fault or arc fault protection circuitry.
Are the trip settings on the KA2225 adjustable?
No, the thermal and magnetic trip settings on the KA2225 are fixed. However, the breaker features an interchangeable trip unit design, meaning the entire trip unit can be swapped out of the frame if different fixed ratings are required.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 14 reviews.
- RFRon F.Verified BuyerReviewingSquare D KA36150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/27/26Square D KA36150
As usual, on time and in great condition!
- SJShawn J.Verified BuyerReviewingSquare D KA36225 - 225A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/27/26I Line BreKER
Found exactly what I was looking for. They called and set over specs so I could confirm the fit!
- RFRon F.Verified BuyerReviewingSquare D KA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/9/26Multiple orders
I have purchased multiple breakers (of fairly large size) from SuperBreakers and their pricing has been excellent and the delivery time spot on. I would highly recommend them
- MFMatt F.Verified BuyerReviewingSquare D KA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/21/25Order Messed Up - Breaker Great
I have ordered many breakers through SuperBreakers with no issues until this order. I ordered this breaker and it wasn't shipped. I sent a message and was told that a mistake was make in shipping and that they would next day air the breaker to me. 5 days later (weekend in there) the breaker arrived. Not next day air, but shit happens. Sent the breaker still in the box out with my electrician and received a call from him that the breaker that was sent was a KAL36100 not the KA36100. I reached out to SuperBreakers and was told the correct breaker would be next day aired that day and I was emailed a shipping label to send back the incorrect one. This time it arrived the next day and was installed. This error cost my customer a couple days with out power to a dimmer cabinet and about 2 extra hours of labor, but all was okay in the end. Mistakes happen. The help and quick responses to my emails I received from Mike David showed me enough about this company. I look forward to my next order. Thank you for working this situation out in timely manor.
- JHJoel H.Verified BuyerReviewingSquare D KA36200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/5/25Worked As Planned
They had what we needed to match existing equipment, they shipped the same day and we put it right into service, no problems from first phone call to delivery and install.