Cummins Onan D-3521 Specs (Power | Fuel Consumption)

The Cummins Onan D-3521 generator is listed with standby output of 1540 kW, 50 Hz operation, 60 V, 50 V output, and A (U) / B (V) / C (W).

Cummins Onan Generator Specifications

Generator • 50 Hz • A (U) / B (V) / C (W)

Standby power: 1540 kWVoltage options: 60 V, 50 VDry weight: 26,292 lb (11,926 kg)

Key specifications

1540 kW Standby power

60 V, 50 V Voltage options

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

26,292 lb (11,926 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

58.6 kW

Peer average

55.6 kW

73rd percentile

Power output

Low 1,400 kW High 1,540 kW

Standby

1,540 kW

Prime

1,400 kW

Model spec snapshot

Representative numeric specifications from this generator.

1,540 kWStandby

26,292.33 lbWeight

How the Cummins Onan D-3521 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

1,540 kW

16% below avg

43rd percentile

Dry weight

26,292 lb

13% below avg

42nd percentile

Oil capacity

53.89 gal

4% above avg

53rd percentile

Standby power1,540 kW

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

About 16% below the similar-output Cummins Onan average. Around the 43rd percentile for this field.

Dry weight26,292 lb

Low 71 lbAverage 30,152 lbHigh 65,094 lb

About 13% below the similar-output Cummins Onan average. Around the 42nd percentile for this field.

Oil capacity53.89 gal

Low 0.28 galAverage 51.88 galHigh 105.14 gal

About 4% above the similar-output Cummins Onan average. Around the 53rd percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	D-3521
Generator type	Generator
Frequency	50 Hz

Electrical output

Standby power	1540 kW
Prime power	1400 kW
Voltage options	60 V, 50 V
Phase	A (U) / B (V) / C (W)

Engine, cooling and controls

Engine model	Cummins/Onan QSK50 series
Engine displacement	3, 069 cu in (50.3 L)
Aspiration / cooling	Turbocharged, After-cooled
Rated engine speed	1900 rpm
Engine oil capacity	53.9 gal (204 L)
Engine coolant capacity	42.5 gal (161 L)
Oil capacity	53.9 gal (204 L)
Controller	PowerCommand digital
Alternator	Cummins/Onan Permanent Magnet Generator (PMG)
Emissions	2g TA Luft – EPA Tier 2

Physical specifications

Dry weight	26, 292 lb (11, 926 kg)
Dimensions (L × W × H)	251.2 × 90 × 97.4 in (6381 × 2285 × 2474 mm)

Battery

Battery cranking	1800 CCA

Maintenance and service parts

Engine oil	Capacity: 216
Coolant	Capacity: 4000

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