Eaton / Cutler-Hammer CSH2150N Molded Case Circuit Breaker
- 150A
- 2 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer CSH2150N - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Serving as the primary disconnect, the Eaton CSH2150N is a 150-amp, two-pole main circuit breaker. It delivers dependable thermal-magnetic protection for residential and commercial applications. This breaker installs into Eaton CH series load centers and Type ECB unit enclosures using a secure bolt-on connection. It accommodates 2 AWG to 300 kcmil wire and substitutes the CSR2150N. Rated at 35kAIC at 120/240V, it offers enhanced fault-current interruption for strict safety requirements.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CSH2150N |
| Series | CSH |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 35kA @ 120/240VAC |
| Frame Type | CSR |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton CH Load Centers, Type ECB Unit Enclosures |
| Wire Gauge | 2 AWG - 300 kcmil (Cu/Al) |
| 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 | Shunt Trip, Auxiliary Switch, Bell Alarm |
|---|---|
| Accessories | Mounting Hardware |
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Main Breaker, High Interrupting Capacity |
Product FAQs
5 answersCan the CSH2150N be used to replace a CSR2150N main breaker?
Yes. The CSH2150N shares the exact same physical dimensions and mounting configuration as the CSR2150N. The key difference is the interrupting capacity; the CSH2150N offers a higher 35kAIC rating compared to the 25kAIC of the CSR2150N, making it a direct, upgraded replacement.
What temperature rating is required for the conductors connected to this breaker?
The line terminals on the CSH2150N are rated for use with 60°C or 75°C copper or aluminum conductors. The included lugs can safely accommodate wire sizes ranging from 2 AWG up to 300 kcmil.
How does the thermal-magnetic trip unit function on the CSH2150N?
The breaker features a fixed thermal-magnetic trip mechanism with two primary functions: a long-time delay to prevent nuisance tripping during temporary, minor overloads, and an instantaneous magnetic trip that immediately opens the circuit during severe short-circuit faults.
What enclosures are approved for use with the CSH2150N?
This 150-amp main breaker is specifically designed for installation in Eaton CH series load centers and Type ECB unit enclosures. It provides the primary disconnect and overcurrent protection for the entire panel.
Why might I need a 35kAIC main breaker like the CSH2150N instead of a standard breaker?
A 35kAIC rating is required in electrical systems with a high available fault current. This often occurs in commercial settings or residential properties located very close to a utility transformer, where a standard 10kAIC or 25kAIC breaker would not safely clear a dead short.
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