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Eaton / Cutler-Hammer CHH3125H2X Molded Case Circuit Breaker
- 125A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
CHH3125H2X
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHH3125H2X
Quantity
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Eaton / Cutler-Hammer CHH3125H2X - 125A 3 Pole Molded Case Circuit Breaker
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Description
Built for commercial and industrial environments, the CHH3125H2X provides dependable 125A thermal-magnetic protection. This three-pole, HACR-rated breaker is optimized for use as a tenant main disconnect. The unit installs into Eaton's 35MM, 37MM, and 37SS modular metering stacks via a sturdy bolt-on connection. When planning future upgrades, note that this model is replaced by the CVS3125X. Rated for 25 kAIC at 240VAC, it offers essential short-circuit and overload defense for your system.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHH3125H2X |
| Series | CHH |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC |
| Frame Type | CHH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Modular Metering Stacks (35MM, 37MM, 37SS) |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Tenant Main, HACR Rated, High Interrupting Capacity |
Product FAQs
6 answersWhat equipment is the CHH3125H2X designed to be installed in?
This breaker is specifically designed for use as a tenant main disconnect in Eaton Modular Metering Stacks, including the 35MM, 37MM, and 37SS series.
Can the CHH3125H2X be used in 480V commercial systems?
No, this breaker is rated for a maximum of 240V AC. It cannot be safely used in 480V or 600V electrical systems.
Are the load lugs included with the CHH3125H2X, and what wire do they accept?
Yes, the breaker comes with factory-installed load lugs that accept #2 AWG through 300 kcmil copper or aluminum conductors. Ensure proper torque specifications are applied during installation.
Does this breaker include ground fault or arc fault protection?
No, the CHH3125H2X is a standard thermal-magnetic breaker. It provides long-time and instantaneous trip functions for overload and short-circuit protection, but does not feature GFCI or AFCI circuitry.
Are the trip settings on the CHH3125H2X adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be adjusted in the field.
What is the direct replacement for the CHH3125H2X?
Eaton has replaced the CHH3125H2X with the CVS3125X. The CVS3125X serves as the current direct replacement for use in Eaton three-phase modular metering stacks.
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