The Generac SG400 compressor is listed with standby output of 400 kW, Natural Gas fuel, 60 Hz operation, 120/208 V, 120/240 V, 277/480 V, 346/600 V output, Three phase, and sound level of 93 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.
400 kW
360 kW
7.93 gal
22.98 gal
How the Generac SG400 compares
This compares the supplied numeric specification with Generac generators in the same broad standby-power class where enough comparable data exists.
About 33% below the similar-output Generac average. Around the 7th percentile for this field.
About 36% below the similar-output Generac average. Around the 24th percentile for this field.
About 10% above the similar-output Generac average. Around the 75th percentile for this field.
About 57% below the similar-output Generac average. Around the 12th percentile for this field.
Generator information
| Manufacturer | Generac |
|---|---|
| Model | SG400 |
| Generator type | Generator |
| Fuel | Natural Gas |
| Frequency | 60 Hz |
Electrical output
| Standby power | 400 kW |
|---|---|
| Prime power | 360 kW |
| Standby kVA | 500.0 |
| Voltage options | 120/208 V, 120/240 V, 277/480 V, 346/600 V |
| Phase | Three phase |
| Power factor | 0.8 |
Engine, cooling and controls
| Oil capacity | 7.93 gal (30 L) |
|---|---|
| Coolant capacity | 23 gal (87 L) |
| Maximum ambient | 122 °F (50 °C) |
| Controller | Power Zone Pro Sync |
| Alternator | Generac 520mm |
Physical specifications
| Dry weight | 8, 428 lb (3, 823 kg) |
|---|---|
| Dimensions (L × W × H) | 154.4 × 71 × 67 in (3923 × 1803 × 1702 mm) |
| Sound level | 93 dBA @ 23 ft (7 m) |
Battery
| 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.