The Cummins Onan 30DEC generator is listed with standby output of 30 kW, diesel fuel, and 60 Hz operation.
Cummins Onan Generator Specifications
Generator • diesel • 60 Hz
Standby power: 30 kW
Key specifications
30 kW Standby power
diesel Fuel
60 Hz Frequency
How the Cummins Onan 30DEC compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
Standby power
30 kW
27% below avg
7th percentile
Oil capacity
2.02 gal
20% below avg
28th percentile
Standby power30 kW
Low 30 kWAverage 41.2 kWHigh 55 kW
About 27% below the similar-output Cummins Onan average. Around the 7th percentile for this field.
Oil capacity2.02 gal
Low 1.14 galAverage 2.54 galHigh 4.06 gal
About 20% below the similar-output Cummins Onan average. Around the 28th percentile for this field.
This model Peer average
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | 30DEC |
| Generator type | Generator |
| Fuel | diesel |
| Frequency | 60 Hz |
Electrical output
| Standby power | 30 kW |
|---|
Engine, cooling and controls
| Engine model | Ford C3PX6005A |
|---|---|
| Engine displacement | 220 cu in (3.6 L) |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 2.02 gal (7.7 L) |
| Engine coolant capacity | 4.25 gal (16.1 L) |
| Oil capacity | 2.02 gal (7.7 L) |
| Coolant capacity | 4.25 gal (16.1 L) |
Battery
| Battery voltage | 12 V |
|---|---|
| Battery quantity | 2 |
Maintenance and service parts
| Engine oil | Interval: 200 hr; Specification: SAE type DS; Capacity: 8.1 qt |
|---|---|
| Oil filter | Interval: 200 hr |
| Air filter | Interval: 50 hr |
| Belt | Interval: 100 hr |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.