Cummins Onan DFM Specs (Power | Fuel Consumption)

The Cummins Onan DFM generator is listed with standby output of 1500 kW, Diesel fuel, 60 Hz operation, 6 available voltage configurations, and Three phase.

Cummins Onan Generator Specifications

Generator • Diesel • 60 Hz • Three phase

Standby power: 1500 kWVoltage options: 6 configurationsDry weight: 24,200 lb (10,977 kg)

Key specifications

1500 kW Standby power

Diesel Fuel

6 configurations Voltage options

Three phase Phase

24,200 lb (10,977 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

62 kW

Peer average

55.6 kW

88th percentile

Power output

Low 1,250 kW High 1,500 kW

Standby

1,500 kW

Prime

1,250 kW

Model spec snapshot

Representative numeric specifications from this generator.

1,500 kWStandby

24,200.14 lbWeight

How the Cummins Onan DFM 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

1,500 kW

18% below avg

39th percentile

Dry weight

24,200 lb

20% below avg

33rd percentile

Oil capacity

42.27 gal

19% below avg

40th percentile

Standby power1,500 kW

Low 1,000 kWAverage 1,831.9 kWHigh 3,562 kW

About 18% below the similar-output Cummins Onan average. Around the 39th percentile for this field.

Dry weight24,200 lb

Low 71 lbAverage 30,152 lbHigh 65,094 lb

About 20% below the similar-output Cummins Onan average. Around the 33rd percentile for this field.

Oil capacity42.27 gal

Low 0.28 galAverage 51.88 galHigh 105.14 gal

About 19% below the similar-output Cummins Onan average. Around the 40th percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	DFM
Generator type	Generator
Fuel	Diesel
Frequency	60 Hz

Electrical output

Standby power	1500 kW
Prime power	1250 kW
Standby kVA	1875.0
Voltage options	220/380 V, 240/416 V, 277/480 V, 254/440 V, 347/600 V, 2400/4160 V
Phase	Three phase

Engine, cooling and controls

Engine model	Cummins/Onan KTTA50-G2
Engine displacement	3, 069 cu in (50.3 L)
Aspiration / cooling	turbocharged and aftercooled
Rated engine speed	1800 rpm
Engine oil capacity	40 gal (151.4 L)
Oil capacity	42.3 gal (160 L)
Coolant capacity	102 gal (386.1 L)
Maximum ambient	122 °F (50 °C)
Controller	Cascade, DetectorControl, PowerCommand, PowerCommand 3100 (PCC)
Alternator	Cummins/Onan S-1152 (50 Hz), S-1151 (60 Hz)

Physical specifications

Dry weight	24, 200 lb (10, 977 kg)
Dimensions (L × W × H)	222.5 × 89.6 × 98.7 in (5652 × 2277 × 2507 mm)

Battery

Battery group	8D
Battery cranking	1400 CCA
Battery voltage	24 V
Battery quantity	4

Fuel consumption

Standby	77.2 gal/h (292.6 L/h) @ 100%

Maintenance and service parts

Engine oil	Specification: See Cummins engine Operation and Maintenance Manual; Capacity: 169.0 L
Coolant	Capacity: 386.1 L
Belt	Specification: Fan Belt Replacement mentioned

Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.