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Eaton / Cutler-Hammer CAH3150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
CAH3150
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CAH3150
Quantity
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Eaton / Cutler-Hammer CAH3150 - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer CAH3150 - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CAH3150 |
| Series | CAH |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Cutler-Hammer Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG-350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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 | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Quantity
Eaton / Cutler-Hammer CAH3150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CAH3150-R |
| Series | CAH |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Cutler-Hammer Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG-350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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 | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
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Description
A drop-in replacement for discontinued Cutler-Hammer systems, the Eaton CAH3150 restores reliable power distribution to commercial facilities. This 3-pole, 150A molded case circuit breaker features a 240VAC rating and a 22kA interrupt capacity. Equipped with fixed thermal-magnetic trip technology, it delivers standard LI protection for heavy-duty loads. The unit-mount design installs easily into existing switchboards. For modern retrofits, this legacy C-frame model is replaced by the FD3150.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CAH3150 |
| Series | CAH |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Cutler-Hammer Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG-350 kcmil (Cu/Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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 | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Product FAQs
6 answersWhich enclosures are compatible with the CAH3150 circuit breaker?
This breaker is designed for use in legacy Cutler-Hammer panelboards, switchboards, and motor control centers that accept C-frame unit-mount breakers.
What is the modern replacement for the discontinued CAH3150?
For modern retrofits, this legacy C-frame model is typically replaced by the Eaton FD3150. Always verify physical space and mounting compatibility before upgrading.
What wire sizes are accepted by the terminals on this breaker?
The standard lugs accommodate copper or aluminum conductors ranging from 6 AWG to 350 kcmil.
What specific protection functions does the thermal-magnetic trip unit provide?
The fixed thermal-magnetic trip unit delivers standard LI protection, meaning it provides fixed long-time protection for overloads and fixed instantaneous protection for short circuits.
Is the CAH3150 a plug-on or bolt-on breaker?
It is a unit-mount, feed-thru circuit breaker. It bolts directly to the enclosure backpan or mounting surface rather than plugging into a busbar.
Can I install this breaker in a 480V system?
No, the CAH3150 is strictly rated for a maximum of 240 VAC. Installing it in a higher voltage system violates safety standards and risks catastrophic failure.
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