Cummins Onan C640 D5 Specs (Power | Fuel Consumption)

The Cummins Onan C640 D5 generator is listed with standby output of 505 kW, Diesel fuel, 50 Hz operation, and Three phase.

Cummins Onan Generator Specifications

Generator • Diesel • 50 Hz • Three phase

Standby power: 505 kWDry weight: 10,062 lb (4,564 kg)

Key specifications

505 kW Standby power

Diesel Fuel

Three phase Phase

10,062 lb (4,564 kg) Dry weight

50 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

50.2 kW

Peer average

58 kW

51st percentile

Power output

Low 460 kW High 505 kW

Standby

505 kW

Prime

460 kW

Model spec snapshot

Representative numeric specifications from this generator.

505 kWStandby

10,061.9 lbWeight

How the Cummins Onan C640 D5 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

505 kW

24% below avg

19th percentile

Dry weight

10,062 lb

35% below avg

24th percentile

Oil capacity

13.21 gal

51% below avg

8th percentile

Standby power505 kW

Low 400 kWAverage 665.2 kWHigh 921.6 kW

About 24% below the similar-output Cummins Onan average. Around the 19th percentile for this field.

Dry weight10,062 lb

Low 4,643 lbAverage 15,485 lbHigh 39,573 lb

About 35% below the similar-output Cummins Onan average. Around the 24th percentile for this field.

Oil capacity13.21 gal

Low 8.83 galAverage 27 galHigh 54.53 gal

About 51% below the similar-output Cummins Onan average. Around the 8th percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	C640 D5
Generator type	Generator
Fuel	Diesel
Frequency	50 Hz

Electrical output

Standby power	505 kW
Prime power	460 kW
Standby kVA	631.0
Phase	Three phase
Power factor	0.8

Engine, cooling and controls

Engine model	Cummins/Onan KTAA19-G6
Aspiration / cooling	Turbocharged and charged after-cooled (air to air)
Rated engine speed	1500 rpm
Engine oil capacity	13.2 gal (50 L)
Oil capacity	13.2 gal (50 L)
Coolant capacity	21.1 gal (80 L)
Maximum ambient	122 °F (50 °C)
Controller	PowerCommand
Alternator	Cummins/Onan HCI534E

Physical specifications

Dry weight	10, 062 lb (4, 564 kg)
Dimensions (L × W × H)	145 × 57.2 × 78.7 in (3684 × 1454 × 2000 mm)

Battery

Battery cranking	640 CCA

Fuel consumption

Standby	37 L/h @ 0%
Prime	34 L/h @ 0%

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