Eaton / Cutler-Hammer CSR2150 Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer CSR2150 - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed as the primary disconnect, this 150A main breaker safeguards residential and commercial systems. It provides reliable thermal-magnetic protection against overloads. The bolt-on configuration is tailored for Eaton Type CH load centers, plus Type ECC and ECB unit enclosures. It utilizes standard lugs for secure connections. With a 25kAIC rating at 120/240VAC, it handles significant fault currents. While replaced by the CSR2150N, it remains a crucial replacement part for existing panels.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | CSR |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 120/240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Type CH Load Centers, Type ECC Unit Enclosures, Type ECB Unit Enclosures |
| Wire Gauge | #2 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 2 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Line Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Main Breaker, High Interrupting Capacity |
Product FAQs
6 answersWhat is the difference between the Eaton CSR2150 and the BWH2150?
The Eaton CSR2150 and BWH2150 are physically and electrically identical. The BWH series was originally branded by Westinghouse, while the CSR series was branded by Cutler-Hammer. They share the same footprint and can be used interchangeably if both are listed on your load center publication.
Which load centers and enclosures accept the CSR2150 main breaker?
This breaker is designed for use in Type CH load centers, as well as Type ECC and ECB unit enclosures. Always verify compatibility by checking the wiring diagram on your specific panel.
How is the CSR2150 main breaker mounted in a load center?
The breaker mounts directly to the interior bus using two 1/4-20 studs and nuts, which must be torqued to 96 lb-in. It is further secured to the backpan with a #8-32 base mounting screw.
What is the recommended wire size and lug torque for the CSR2150?
The terminal lugs accept copper or aluminum wire ranging from #2 AWG to 300 kcmil. The standard torque for these wire lugs is 250 lb-in, but always verify the exact specification printed on the breaker label.
What does the N suffix mean in part numbers like CSR2150N?
The N suffix designates a factory packaged kit that includes the main breaker along with the necessary mounting hardware, such as the hold-down screw and nuts.
Is the CSR2150 rated for 100 percent continuous operation?
No, like most standard molded case circuit breakers, it is rated for 80 percent continuous load. The continuous load should not exceed 120 amps.
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