Cummins Onan DFM 275 Specs (Power | Fuel Consumption)

The Cummins Onan DFM 275 generator is listed with standby output of 250 kW, Diesel fuel, 60 Hz operation, and Three phase.

Cummins Onan Generator Specifications

Generator • Diesel • 60 Hz • Three phase

Standby power: 250 kWDry weight: 6,475 lb (2,937 kg)

Key specifications

250 kW Standby power

Diesel Fuel

Three phase Phase

6,475 lb (2,937 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

38.6 kW

Peer average

45.1 kW

46th percentile

Model spec snapshot

Representative numeric specifications from this generator.

250 kWStandby

6,474.98 lbWeight

How the Cummins Onan DFM 275 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

250 kW

7% above avg

62nd percentile

Dry weight

6,475 lb

9% above avg

64th percentile

Oil capacity

8.19 gal

7% above avg

57th percentile

Standby power250 kW

Low 150 kWAverage 232.8 kWHigh 354.6 kW

About 7% above the similar-output Cummins Onan average. Around the 62nd percentile for this field.

Dry weight6,475 lb

Low 2,199 lbAverage 5,923 lbHigh 12,467 lb

About 9% above the similar-output Cummins Onan average. Around the 64th percentile for this field.

Oil capacity8.19 gal

Low 1.81 galAverage 7.66 galHigh 13.73 gal

About 7% above the similar-output Cummins Onan average. Around the 57th percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	DFM 275
Generator type	Generator
Fuel	Diesel
Frequency	60 Hz

Electrical output

Standby power	250 kW
Standby kVA	312.0
Phase	Three phase
Power factor	0.8

Engine, cooling and controls

Engine model	Cummins/Onan NTA 855 G1
Rated engine speed	1800 rpm
Engine oil capacity	8.19 gal (31 L)
Engine coolant capacity	19 gal (72 L)
Oil capacity	8.19 gal (31 L)
Coolant capacity	19 gal (72 L)
Alternator	Cummins/Onan 3 Phase 60 Hz YB

Physical specifications

Dry weight	6, 475 lb (2, 937 kg)

Battery

Battery group	8D
Battery voltage	12 V
Battery quantity	2

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