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Eaton / Cutler-Hammer CA3150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
CA3150
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CA3150
Quantity
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Eaton / Cutler-Hammer CA3150 - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer CA3150 - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CA3150 |
| Series | CA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards, Eaton F-Frame Panelboards |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Quantity
Eaton / Cutler-Hammer CA3150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CA3150-R |
| Series | CA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards, Eaton F-Frame Panelboards |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
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Description
Designed for dependable commercial power management, the Eaton CA3150 is a 3-pole, 150A molded case circuit breaker. It features standard long-time and instantaneous (LI) protection through a fixed thermal-magnetic trip unit, ensuring safety across electrical networks. This C-Frame breaker is engineered to mount into legacy Westinghouse panelboards and Eaton F-Frame systems. It serves as a substitute for the ED3150 and is formally replaced by the newer FD3150 model.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CA3150 |
| Series | CA |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Panelboards, Eaton F-Frame Panelboards |
| Wire Gauge | 3 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 3 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich panelboards are compatible with the CA3150 circuit breaker?
This unit mount breaker is designed for legacy Westinghouse and Eaton panelboards. It is commonly used in CDP, FDP, and Pow-R-Line series panels that accept C-Frame or F-Frame molded case circuit breakers.
What is the recommended modern replacement for the legacy CA3150?
The CA-frame series is an obsolete legacy product. For a modern equivalent, Eaton typically recommends crossing over to the ED-frame series, such as the ED3150. Always verify your specific panelboard dimensions, mounting clearances, and bus connections before upgrading.
What type of conductors can be landed on the terminals of this breaker?
The included line and load lugs accept either aluminum or copper wire ranging from 3 AWG to 300 kcmil. Installers must apply the correct torque specified on the physical breaker label to ensure a secure and safe connection.
Can the trip curve be adjusted on the CA3150?
No. This breaker is equipped with a fixed thermal-magnetic trip unit. The long-time and instantaneous protection functions are factory set and cannot be adjusted in the field.
Is the CA3150 suitable for 480V or 600V distribution systems?
No, this breaker is strictly rated for a maximum of 240V AC. Installing it in a 480V or 600V system violates its UL listing and presents a severe safety hazard.
What type of testing should be performed before installing this legacy breaker?
For safety and reliability, especially with older legacy frame components, it is recommended that licensed professionals perform insulation resistance testing and primary injection testing. This confirms the breaker operates accurately within its specified time-current curve prior to being energized.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Total 5 star reviews: 4 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
4 reviews
- MQMichael Q.ReviewingEaton / Cutler-Hammer CA2225 - 225A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/11/24Great find on these obsolete breakers!
Breakers were in excellent condition functioned as they were designed; shipped nicely and were delivered within 5 days -happy electrician Gallup customers!
- AMAntonino M.ReviewingEaton / Cutler-Hammer CA3200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/11/21great
delivered on time and affordable price ! I am sure coming back to buy more from superbreakers
- NCNallely C.ReviewingEaton / Cutler-Hammer CA3200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/29/21Excellent
Great price, good product
- MSMiranda S.ReviewingEaton / Cutler-Hammer CA3125 - 125A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars12/22/20Excellence
Easy website to navigate around and product was shipped at a very timely manner. 10/10 would recommend.