The Cummins Onan DSFAB generator is listed with standby output of 40 kW and 60 Hz operation.
Cummins Onan Generator Specifications
Generator • 60 Hz
Standby power: 40 kW
Key specifications
40 kW Standby power
60 Hz Frequency
How the Cummins Onan DSFAB 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
40 kW
In line with avg
47th percentile
Oil capacity
3.2 gal
26% above avg
85th percentile
Standby power40 kW
Low 30 kWAverage 41.2 kWHigh 55 kW
Very close to the similar-output Cummins Onan average. Around the 47th percentile for this field.
Oil capacity3.2 gal
Low 1.14 galAverage 2.54 galHigh 4.06 gal
About 26% above the similar-output Cummins Onan average. Around the 85th percentile for this field.
This model Peer average
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | DSFAB |
| Generator type | Generator |
| Frequency | 60 Hz |
Electrical output
| Standby power | 40 kW |
|---|
Engine, cooling and controls
| Engine model | Cummins/Onan QSB5-G3 |
|---|---|
| Engine displacement | 275 cu in (4.5 L) |
| Aspiration / cooling | turbocharged, charge air cooled |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 3.2 gal (12.1 L) |
| Engine coolant capacity | 4.49 gal (17 L) |
| Oil capacity | 3.2 gal (12.1 L) |
| Controller | PowerCommand 2100 |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.