The Cummins Onan C250 D2R generator is listed with Diesel fuel, 24 V output, DC, and sound level of 97.0 dBA.
Cummins Onan Generator Specifications
Generator • Diesel • DC
Voltage options: 24 V
Key specifications
Diesel Fuel
24 V Voltage options
DC Phase
97.0 dBA Sound level
How the Cummins Onan C250 D2R compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
Sound level
97 dBA
28% above avg
95th percentile
Oil capacity
7 gal
59% below avg
57th percentile
Sound level97 dBA
Low 51 dBAAverage 75.5 dBAHigh 107.4 dBA
About 28% above the similar-output Cummins Onan average. Around the 95th percentile for this field.
Oil capacity7 gal
Low 0.16 galAverage 17.18 galHigh 100.39 gal
About 59% below the similar-output Cummins Onan average. Around the 57th percentile for this field.
This model Peer average
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | C250 D2R |
| Generator type | Generator |
| Fuel | Diesel |
Electrical output
| Voltage options | 24 V |
|---|---|
| Phase | DC |
Engine, cooling and controls
| Engine model | Cummins/Onan QSL9G5 |
|---|---|
| Engine displacement | 537 cu in (8.8 L) |
| Aspiration / cooling | Turbocharged |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 7 gal (26.5 L) |
| Engine coolant capacity | 7.56 gal (28.6 L) |
| Oil capacity | 7 gal (26.5 L) |
| Coolant capacity | 7.56 gal (28.6 L) |
| Controller | PCC1301 |
Physical specifications
| Sound level | 97.0 dBA |
|---|
Battery
| Battery group | 2 |
|---|---|
| Battery cranking | 750 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
Fuel system and runtime
| Fuel tank | 7.56 gal (28.6 L) |
|---|
Maintenance and service parts
| Engine oil | Capacity: 26.5 L |
|---|---|
| Oil filter | Interval: 1000 hr |
| Fuel filter | Interval: 500 hr |
| Coolant | Capacity: 28.6 L |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.