The Generac MG300 compressor is listed with standby output of 300 kW, Natural Gas fuel, 60 Hz operation, 120/208 V, 277/480 V, 346/600 V output, Three phase, and sound level of 90 dBA @ 23 ft (7 m).
Generator • Natural Gas • 60 Hz • Three phase
Key specifications
Visual model specs
Built only from this model’s supplied generator specifications.
300 kW
270 kW
9.06 gal
18.99 gal
How the Generac MG300 compares
This compares the supplied numeric specification with Generac generators in the same broad standby-power class where enough comparable data exists.
About 17% above the similar-output Generac average. Around the 69th percentile for this field.
About 9% below the similar-output Generac average. Around the 44th percentile for this field.
About 11% above the similar-output Generac average. Around the 88th percentile for this field.
About 21% above the similar-output Generac average. Around the 82nd percentile for this field.
Generator information
| Manufacturer | Generac |
|---|---|
| Model | MG300 |
| Generator type | Generator |
| Fuel | Natural Gas |
| Frequency | 60 Hz |
Electrical output
| Standby power | 300 kW |
|---|---|
| Prime power | 270 kW |
| Standby kVA | 375.0 |
| Voltage options | 120/208 V, 277/480 V, 346/600 V |
| Phase | Three phase |
| Power factor | 0.8 |
| Circuit breaker | 1000 A |
Engine, cooling and controls
| Oil capacity | 9.06 gal (34.3 L) |
|---|---|
| Coolant capacity | 19 gal (71.9 L) |
| Maximum ambient | 122 °F (50 °C) |
| Controller | Digital G, Digital G-200, Power Zone Pro Sync, PowerManager Digital Platform (PM-DCP) |
| Alternator | Generac 520mm |
| Emissions | EPA Certified Stationary Emergency |
Physical specifications
| Dry weight | 6, 199 lb (2, 812 kg) |
|---|---|
| Dimensions (L × W × H) | 138.7 × 57.6 × 68 in (3524 × 1463 × 1728 mm) |
| Sound level | 90 dBA @ 23 ft (7 m) |
Battery
| Battery group | 4D |
|---|---|
| Battery cranking | 925 CCA |
| Battery voltage | 12 VDC V |
| Battery quantity | 2 |
Disclaimer: Specifications should be verified against the official owner’s manual and confirmed on the Generac USA website.