The Cummins Onan 1250DFLE generator is listed with standby output of 1250 kW, Diesel fuel, 50 Hz operation, 24 V output, and Single phase.
Cummins Onan Generator Specifications
Generator • Diesel • 50 Hz • Single phase
Standby power: 1250 kWVoltage options: 24 V
Key specifications
1250 kW Standby power
Diesel Fuel
24 V Voltage options
Single phase Phase
50 Hz Frequency
How the Cummins Onan 1250DFLE 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
1,250 kW
32% below avg
20th percentile
Oil capacity
53.89 gal
4% above avg
53rd percentile
Standby power1,250 kW
Low 1,000 kWAverage 1,831.9 kWHigh 3,562 kW
About 32% below the similar-output Cummins Onan average. Around the 20th percentile for this field.
Oil capacity53.89 gal
Low 0.28 galAverage 51.88 galHigh 105.14 gal
About 4% above the similar-output Cummins Onan average. Around the 53rd percentile for this field.
This model Peer average
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | 1250DFLE |
| Generator type | Generator |
| Fuel | Diesel |
| Frequency | 50 Hz |
Electrical output
| Standby power | 1250 kW |
|---|---|
| Voltage options | 24 V |
| Phase | Single phase |
Engine, cooling and controls
| Engine model | Cummins/Onan KTA50−G8 |
|---|---|
| Engine displacement | 3, 069 cu in (50.3 L) |
| Aspiration / cooling | Turbo Aftercooled |
| Rated engine speed | 1500 rpm |
| Engine oil capacity | 53.9 gal (204 L) |
| Engine coolant capacity | 105.7 gal (400 L) |
| Oil capacity | 53.9 gal (204 L) |
| Controller | Detector, PowerCommand |
Battery
| Battery voltage | 24 V |
|---|---|
| Battery quantity | 1 |
Maintenance and service parts
| Fuel filter | Specification: Fuel/Water Separator |
|---|---|
| Air filter | Part number: 140-2501 |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.