Cummins Onan C1500D6RG Specs (Power | Fuel Consumption)

The Cummins Onan C1500D6RG generator is listed with standby output of 1500 kW, 60 Hz operation, 480 V output, A (U) / B (V) / C (W), and sound level of 74 dBA @ 23 ft (7 m).

Cummins Onan Generator Specifications

Generator • 60 Hz • A (U) / B (V) / C (W)

Standby power: 1500 kWVoltage options: 480 VDry weight: 60,440 lb (27,415 kg)

Key specifications

1500 kW Standby power

480 V Voltage options

A (U) / B (V) / C (W) Phase

60,440 lb (27,415 kg) Dry weight

74 dBA @ 23 ft (7 m) Sound level

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

24.8 kW

Peer average

55.6 kW

3rd percentile

Power output

Low 1,350 kW High 1,500 kW

Standby

1,500 kW

Prime

1,350 kW

Model spec snapshot

Representative numeric specifications from this generator.

1,500 kWStandby

60,439.73 lbWeight

74 dBASound

How the Cummins Onan C1500D6RG 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

60,440 lb

100% above avg

90th percentile

Sound level

74 dBA

8% below avg

45th percentile

Oil capacity

62.08 gal

20% above avg

63rd 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 weight60,440 lb

Low 71 lbAverage 30,152 lbHigh 65,094 lb

About 100% above the similar-output Cummins Onan average. Around the 90th percentile for this field.

Sound level74 dBA

Low 54.8 dBAAverage 80.9 dBAHigh 123.4 dBA

About 8% below the similar-output Cummins Onan average. Around the 45th percentile for this field.

Oil capacity62.08 gal

Low 0.28 galAverage 51.88 galHigh 105.14 gal

About 20% above the similar-output Cummins Onan average. Around the 63rd percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	C1500D6RG
Generator type	Generator
Frequency	60 Hz

Electrical output

Standby power	1500 kW
Prime power	1350 kW
Standby kVA	1875.0
Voltage options	480 V
Phase	A (U) / B (V) / C (W)
Circuit breaker	2500 A

Engine, cooling and controls

Engine model	Cummins/Onan QSK50-G4
Engine displacement	3, 069 cu in (50.3 L)
Aspiration / cooling	turbocharged, aftercooled
Rated engine speed	1800 rpm
Engine oil capacity	53.9 gal (204 L)
Engine coolant capacity	37 gal (140 L)
Oil capacity	62.1 gal (235 L)
Coolant capacity	1, 631 gal (6, 174 L)
Maximum ambient	113 °F (45 °C)
Controller	PowerCommand, PowerCommand 3.3
Alternator	Stamford/AvK PI734C (Class H insulation)
Emissions	Tier II

Physical specifications

Dry weight	60, 440 lb (27, 415 kg)
Dimensions (L × W × H)	576 × 96 × 114 in (14630 × 2438 × 2896 mm)
Sound level	74 dBA @ 23 ft (7 m)

Battery

Battery group	8D
Battery cranking	1250 / 1500 CCA
Battery quantity	4

Fuel system and runtime

Tank runtime	20 hr

Fuel consumption

Standby	32.0 gal/h (32 L/h) @ 0%; 121.0 gal/h
Prime	29.0 gal/h (29 L/h) @ 0%; 110.0 gal/h

Maintenance and service parts

Engine oil	Capacity: 235.0 L

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