Eaton / Cutler-Hammer CV3125X Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer CV3125X - 125A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Designed specifically for commercial and industrial metering, this 125-amp molded case circuit breaker offers dependable long-time and instantaneous trip protection. It installs seamlessly into Eaton 35MM, 37MM, 35SS, and 37SS commercial meter stacks. Featuring an X-suffix configuration with load terminals only, it simplifies wiring in tight multi-tenant enclosures. With a robust 65 kAIC rating at 240VAC, this unit serves as an exact drop-in replacement for discontinued CHH3125 breakers.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CV3125X |
| Series | CV |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | CC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Commercial Meter Stacks (35MM, 37MM, 35SS, 37SS) |
| Wire Gauge | 6 AWG - 4/0 AWG (Cu/Al) |
| Max Wire | 4/0 AWG |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Tenant Main |
Product FAQs
5 answersWhat does the X suffix in the CV3125X catalog number indicate?
The X suffix indicates that the breaker is configured with load-side terminals only. This design simplifies wiring when installed as a tenant main breaker in compatible multi-tenant metering enclosures.
Can the CV3125X be used to replace older discontinued breakers?
Yes, this unit serves as a direct drop-in replacement for discontinued Eaton or Cutler-Hammer CHH3125 circuit breakers.
Are there alternative breakers in this series with different interrupting ratings?
Yes. While the CV3125X is rated at 65kAIC, you can use the CVS3125X for a 42kAIC rating or the CVH3125X if your application requires a 100kAIC rating.
What is the difference between the CV3125, CV3125W, CV3125X, and CV3125Y breakers?
These suffixes indicate the terminal configuration. The standard CV3125 includes both line and load lugs. The CV3125W has no terminals, the CV3125X includes load-side terminals only, and the CV3125Y includes line-side terminals only.
What is the primary application for the CV3125X breaker?
This breaker is primarily used as a tenant main disconnect in Eaton group metering stacks. Its compact CV frame and load-only terminal configuration make it ideal for multi-tenant commercial and industrial facilities.
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