The Cummins Onan DQAB generator is listed with standby output of 250 kW, diesel fuel, 60 Hz operation, 480/277 V, 208/120 V output, Three phase, rated current of 12:00 AM, and sound level of 74 dBA @ 23 ft (7 m).
Generator • diesel • 60 Hz • Three phase
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
114.5 kW
45.1 kW
250 kW
225 kW
How the Cummins Onan DQAB compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 7% above the similar-output Cummins Onan average. Around the 62nd percentile for this field.
About 63% below the similar-output Cummins Onan average. Around the 2nd percentile for this field.
About 7% below the similar-output Cummins Onan average. Around the 35th percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | DQAB |
| Generator type | Generator |
| Fuel | diesel |
| Frequency | 60 Hz |
Electrical output
| Standby power | 250 kW |
|---|---|
| Prime power | 225 kW |
| Voltage options | 480/277 V, 208/120 V |
| Phase | Three phase |
| Rated current | 12:00 AM |
Engine, cooling and controls
| Engine model | Cummins/Onan MTA11-G2 |
|---|---|
| Rated engine speed | 7300 rpm |
| Controller | PowerCommand |
| Alternator | Cummins/Onan S-1140 |
Physical specifications
| Dry weight | 2, 183 lb (990 kg) |
|---|---|
| Dimensions (L × W × H) | 85 × 216 × 26 in (2160 × 5486 × 660 mm) |
| Sound level | 74 dBA @ 23 ft (7 m) |
Battery
| Battery voltage | 24 V |
|---|
Fuel system and runtime
| Fuel tank | 274.7 gal (1, 040 L) |
|---|
Maintenance and service parts
| Engine oil | Specification: Engine Oil |
|---|---|
| Oil filter | Specification: Oil Filter |
| Fuel filter | Specification: Fuel Filter |
| Coolant | Specification: Coolant |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.