The Kohler 250REZX generator is listed with standby output of 260 kW, Natural Gas fuel, 60 Hz operation, 8 available voltage configurations, and Three phase.
Generator • Natural Gas • 60 Hz • Three phase
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
260 kW
230 kW
How the Kohler 250REZX compares
This compares the supplied numeric specification with Kohler generators in the same broad standby-power class where enough comparable data exists.
About 15% above the similar-output Kohler average. Around the 71st percentile for this field.
About 55% above the similar-output Kohler average. Around the 98th percentile for this field.
Generator information
| Manufacturer | Kohler |
|---|---|
| Model | 250REZX |
| Generator type | Generator |
| Fuel | Natural Gas |
| Frequency | 60 Hz |
Electrical output
| Standby power | 260 kW |
|---|---|
| Prime power | 230 kW |
| Standby kVA | 325.0 |
| Voltage options | 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V |
| Phase | Three phase |
| Power factor | 0.8 |
Engine, cooling and controls
| Engine model | Doosan D146L |
|---|---|
| Engine displacement | 891 cu in (14.6 L) |
| Aspiration / cooling | Turbocharged, Aftercooled |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 12.4 gal (47.1 L) |
| Engine coolant capacity | 60 gal (227.3 L) |
| Oil capacity | 12.4 gal (47.1 L) |
| Coolant capacity | 60 gal (227.3 L) |
| Maximum ambient | 122 °F (50 °C) |
| Controller | APM603, Decision-Maker 3000 |
| Alternator | Kohler 4UA10 |
Physical specifications
| Dimensions (L × W × H) | 137.8 × 68.9 × 84.6 in (3500 × 1750 × 2148 mm) |
|---|
Battery
| Battery cranking | 925 CCA |
|---|---|
| Battery voltage | 12 V |
| Battery quantity | 2 |
Fuel consumption
| Standby | 26.3 L/h @ 25%; 43.1 L/h @ 50%; 61.4 L/h @ 75%; 78.8 L/h @ 100% |
|---|---|
| Prime | 24.8 L/h @ 25%; 39.7 L/h @ 50%; 55.9 L/h @ 75%; 71.8 L/h @ 100% |
Maintenance and service parts
| Oil filter | Capacity: ×2 |
|---|
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Kohler North America generator website.