The Cummins Onan K3500 generator is listed with standby output of 3 kW, gasoline fuel, 60 Hz operation, 120 V, 240 V output, Single phase, and rated current of 25 A.
Generator • gasoline • 60 Hz • Single phase
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
How the Cummins Onan K3500 compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 52% below the similar-output Cummins Onan average. Around the 23rd percentile for this field.
About 18% below the similar-output Cummins Onan average. Around the 45th percentile for this field.
About 69% below the similar-output Cummins Onan average. Around the 21st percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | K3500 |
| Generator type | Generator |
| Fuel | gasoline |
| Frequency | 60 Hz |
Electrical output
| Standby power | 3 kW |
|---|---|
| Standby kVA | 3.0 |
| Voltage options | 120 V, 240 V |
| Phase | Single phase |
| Rated current | 25 A |
| Power factor | 100 |
Engine, cooling and controls
| Engine model | Cummins/Onan GS280-DG-A3 |
|---|---|
| Engine displacement | 17 cu in (0.276 L) |
| Aspiration / cooling | naturally_aspirated |
| Rated engine speed | 3600 rpm |
| Engine oil capacity | 0.24 gal (0.9 L) |
| Oil capacity | 0.24 gal (0.9 L) |
Battery
| Battery voltage | 12 V |
|---|---|
| Battery quantity | 1 |
Fuel system and runtime
| Fuel tank | 2.25 gal (8.5 L) |
|---|
Maintenance and service parts
| Engine oil | Interval: 50 hr; Specification: Change the engine oil only after the engine has run and is still warm. |
|---|---|
| Fuel filter | Specification: Periodically clean the fuel filter as follows: |
| Air filter | Interval: 25 hr; Specification: Clean air cleaner element |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.