The Cummins Onan DQHAB generator is listed with standby output of 300 kW, diesel fuel, 60 Hz operation, 13 available voltage configurations, and Three phase.
Cummins Onan Generator Specifications
Generator • diesel • 60 Hz • Three phase
Standby power: 300 kWVoltage options: 13 configurationsDry weight: 5,900 lb (2,676 kg)
Key specifications
300 kW Standby power
diesel Fuel
13 configurations Voltage options
Three phase Phase
5,900 lb (2,676 kg) Dry weight
60 Hz Frequency
Useful generator charts
Charts are shown only when this model has enough usable source data.
Power-to-weight
Standby output per 1,000 lb of dry weight versus similar-output Cummins Onan models.
This model
50.9 kW
Peer average
45.1 kW
79th percentile
Power output
Low 270 kW High 300 kW
Standby
300 kW
Prime
270 kW
Model spec snapshot
Representative numeric specifications from this generator.
300 kWStandby
5,899.57 lbWeight
How the Cummins Onan DQHAB 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
300 kW
29% above avg
77th percentile
Dry weight
5,900 lb
In line with avg
52nd percentile
Oil capacity
9.7 gal
27% above avg
71st percentile
Standby power300 kW
Low 150 kWAverage 232.8 kWHigh 354.6 kW
About 29% above the similar-output Cummins Onan average. Around the 77th percentile for this field.
Dry weight5,900 lb
Low 2,199 lbAverage 5,923 lbHigh 12,467 lb
Very close to the similar-output Cummins Onan average. Around the 52nd percentile for this field.
Oil capacity9.7 gal
Low 1.81 galAverage 7.66 galHigh 13.73 gal
About 27% above the similar-output Cummins Onan average. Around the 71st percentile for this field.
This model Peer average
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | DQHAB |
| Generator type | Generator |
| Fuel | diesel |
| Frequency | 60 Hz |
Electrical output
| Standby power | 300 kW |
|---|---|
| Prime power | 270 kW |
| Standby kVA | 375.0 |
| Voltage options | 110/190 V, 115/200 V, 115/230 V, 120/208 V, 127/220 V, 139/240 V, 120/240 V, 220/380 V, 230/400 V, 240/416 V, 254/440 V, 277/480 V, 347/600 V |
| Phase | Three phase |
Engine, cooling and controls
| Engine model | Cummins/Onan QSM11-G4 |
|---|---|
| Engine displacement | 659 cu in (10.8 L) |
| Aspiration / cooling | turbocharged and after-cooled |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 9.7 gal (36.7 L) |
| Engine coolant capacity | 2.51 gal (9.5 L) |
| Oil capacity | 9.7 gal (36.7 L) |
| Coolant capacity | 8.9 gal (33.7 L) |
| Maximum ambient | 126 °F (52 °C) |
| Controller | PCC 2100, PowerCommand, PowerCommand 2100, PowerCommand PCC2100 CAN |
| Emissions | Tier 3 |
Physical specifications
| Dry weight | 5, 900 lb (2, 676 kg) |
|---|---|
| Dimensions (L × W × H) | 135.9 × 60 × 71 in (3453 × 1524 × 1803 mm) |
Battery
| Battery group | 12 |
|---|---|
| Battery cranking | 550 CCA |
| Battery voltage | 24-volt V |
| Battery quantity | 2 |
Fuel consumption
| Standby | 82.56 gal/h (25.25 L/h) @ 0%; 6.67 gal/h (43.8 L/h) @ 1%; 11.57 gal/h (64.81 L/h); 17.12 gal/h (87.63 L/h); 23.15 gal/h |
|---|---|
| Prime | 87.63 gal/h (23.77 L/h) @ 0%; 6.28 gal/h (40.35 L/h) @ 1%; 10.66 gal/h (58.71 L/h); 15.51 gal/h (78.21 L/h); 20.66 gal/h |
Maintenance and service parts
| Engine oil | Interval: 12000 hr; Specification: Change engine oil and filter |
|---|---|
| Oil filter | Interval: 2000 hr; Specification: Inspect, adjust or replace alternator or fan belt; Change cooling system coolant (ELC); Replace water separator element; Replace fuel system secondary filter; Inspect/adjust engine valve lash; Inspect aftercooler core; Inspect alternator; Inspect engine mounts; Inspect starting motor; Inspect turbocharger; Inspect water pump |
| Fuel filter | Interval: 500 hr; Specification: Drain fuel system primary filter/water separator |
| Air filter | Interval: 1000 hr; Specification: Clean/replace engine air cleaner element; Inspect/clean engine ground |
| Coolant | Interval: 50 hr; Specification: Check cooling system coolant level; Check driven equipment; Inspect engine air cleaner service indicator; Check engine oil level; Drain tank water and sediment; Check battery electrolyte level; Clean/test aftercooler core; Add cooling system coolant extender (ELC); Change cooling system coolant (ELC) |
| Belt | Interval: 2000 hr; Specification: Inspect, adjust or replace alternator or fan belt; Inspect/adjust engine valve lash; Inspect aftercooler core; Inspect alternator; Inspect engine mounts; Inspect starting motor; Inspect turbocharger; Inspect water pump |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.