The Cummins Onan C400 D6 generator is listed with standby output of 320 kW, 50 Hz operation, 15 available voltage configurations, and A (U) / B (V) / C (W).
Generator • 50 Hz • A (U) / B (V) / C (W)
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
41.6 kW
45.1 kW
320 kW
365 kW
How the Cummins Onan C400 D6 compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 37% above the similar-output Cummins Onan average. Around the 84th percentile for this field.
About 30% above the similar-output Cummins Onan average. Around the 82nd percentile for this field.
About 38% above the similar-output Cummins Onan average. Around the 89th percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | C400 D6 |
| Generator type | Generator |
| Frequency | 50 Hz |
Electrical output
| Standby power | 320 kW |
|---|---|
| Prime power | 365 kW |
| Standby kVA | 400.0 |
| Voltage options | 277 V, 480 V, 220 V, 380 V, 254 V, 440 V, 127 V, 240 V, 416 V, 115 V, 200 V, 230 V, 400 V, 110 V, 190 V |
| Phase | A (U) / B (V) / C (W) |
Engine, cooling and controls
| Engine model | Cummins/Onan NT855 |
|---|---|
| Engine displacement | 854 cu in (14 L) |
| Aspiration / cooling | Turbo Charged |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 10.6 gal (40 L) |
| Engine coolant capacity | 13.5 gal (51 L) |
| Oil capacity | 10.6 gal (40 L) |
| Coolant capacity | 32.2 gal (122 L) |
| Controller | PowerCommand |
| Alternator | QSG12-G4 |
Physical specifications
| Dry weight | 7, 701 lb (3, 493 kg) |
|---|---|
| Dimensions (L × W × H) | 139.7 × 43.3 × 83.3 in (3549 × 1100 × 2115 mm) |
Battery
| Battery voltage | 24 V |
|---|
Maintenance and service parts
| Engine oil | Interval: 100 hr; Capacity: 10.0 gallons |
|---|---|
| Oil filter | Interval: 1000 hr |
| Fuel filter | Interval: 500 hr |
| Air filter | Interval: 1000 hr; Specification: If the engine is equipped with an oil bath type air cleaner, fill to the level indicated with oil of the same viscosity as used in the crankcase. However, a non-detergent (straight mineral) oil is recommended. |
| Coolant | Interval: 5000 hr; Specification: For units which use either a radiator or heat exchanger (city water cooled), fill the cooling system with clean soft water, The standard radiator and block capacity is 21 U.S. gallons. Use a good rust and scale inhibitor. If there is any possibility of a radiator cooled plant being exposed to freezing temperatures, use antifreeze with ethylene glycol base as instructed in the Cummins manual.; Capacity: 80.63 L |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.