Eaton / Cutler-Hammer FG3225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
FG3225
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
FG3225
Quantity
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Eaton / Cutler-Hammer FG3225 - 225A 3 Pole Molded Case Circuit Breaker
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Description
Designed specifically for commercial diesel engine generators, the FG3225 is a 3-pole, 225A MCCB from Eaton's Series C family. This F-frame breaker installs into Eaton and legacy Westinghouse panelboards, switchboards, and motor control centers. It features a standard unit mount configuration. Rated for 14 kAIC at 480VAC, it utilizes a fixed thermal-magnetic trip unit. The low magnetic pickup and reverse feed capabilities ensure reliable generator performance.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | FG3225 |
| Series | FG |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 600VAC |
| Frame Type | FG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Switchboards, Motor Control Centers, Diesel Engine Generators |
| Wire Gauge | 4 AWG - 4/0 AWG |
| Max Wire | 4/0 AWG |
| Min Wire | 4 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, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Terminals |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | Engine Generator Rated, Reverse Feed, Low Magnetic Pickup, HACR Rated |
Product FAQs
5 answersWhat applications is the Eaton FG3225 circuit breaker designed for?
The FG3225 is engineered for use in Eaton Series C panelboards, switchboards, motor control centers, and diesel engine generators. Its magnetic pickup range is specifically calibrated to provide low-level short-circuit protection for generator circuits.
Are line and load lugs included with the FG3225 breaker?
Yes, this feed-thru circuit breaker includes factory-installed line and load terminal lugs. The lugs are sized to accept 4 AWG to 4/0 AWG conductors.
Can I adjust the trip settings on the FG3225?
No, the FG3225 features a thermal magnetic trip unit with fixed thermal and fixed magnetic settings. It provides standard long-time and instantaneous protection without adjustable dials.
Is the Eaton FG3225 interchangeable with Westinghouse or Cutler-Hammer versions?
Yes. Eaton manufactures the Series C FG frame breakers under the Eaton, Cutler-Hammer, and legacy Westinghouse brand names. An FG3225 from any of these brands is the exact same physical and electrical component.
How is the FG3225 mounted in a panel or enclosure?
The FG3225 is a unit mount breaker, meaning it bolts directly to the chassis or backpan of compatible switchboards, motor control centers, or generator enclosures rather than snapping onto a busbar.
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