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Eaton / Cutler-Hammer CHH3225H4X Molded Case Circuit Breaker
- 225A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
CHH3225H4X
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
CHH3225H4X
Quantity
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Eaton / Cutler-Hammer CHH3225H4X - 225A 3 Pole Molded Case Circuit Breaker
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Description
Part of the Cutler-Hammer legacy lineup, this high-interrupting tenant main handles demanding commercial and residential loads with a robust 42kAIC rating. The unit bolts securely into Eaton 35MM, 37MM, and 37SS modular metering stacks to provide essential overcurrent protection. Facilities managers often seek this exact frame to maintain existing electrical infrastructure without requiring complete system overhauls. It features fixed thermal and magnetic trip functions.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CHH3225H4X |
| Series | CHH |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 208Y/120VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 208Y/120VAC |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Tenant Main, High Interrupting Capacity |
Product FAQs
5 answersWhich Eaton metering stacks are compatible with the CHH3225H4X tenant breaker?
This 3-pole breaker is specifically designed for use as a tenant main in Eaton three-phase Modular Metering Stacks, including the 35MM, 37MM, and 37SS series enclosures.
Can I use the CHH3225H4X in a standard load center or panelboard?
No, this is a specialized tenant circuit breaker with a specific bolt-on configuration designed exclusively for Eaton modular metering stacks, not standard residential load centers or standard distribution panelboards.
What are the wire size requirements for the load-side terminals on this breaker?
The factory-installed lugs accept copper or aluminum conductors ranging from #2 AWG up to 300 kcmil. Ensure proper torque specifications are followed during installation.
Does the CHH3225H4X feature adjustable trip settings?
No, this breaker is equipped with a fixed thermal-magnetic trip unit. Both the long-time (thermal) and instantaneous (magnetic) trip functions are factory-set and non-adjustable.
Is this breaker suitable for use with aluminum wiring?
Yes, the load lugs on the CHH3225H4X are dual-rated for both copper (Cu) and aluminum (Al) conductors within the #2 AWG to 300 kcmil range. Always apply an appropriate oxide joint compound or inhibitor when terminating aluminum wire.
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