Cummins Onan GFAB Specs (Power | Fuel Consumption)

The Cummins Onan GFAB generator is listed with standby output of 150 kW, 60 Hz operation, 6 available voltage configurations, and Three phase.

Cummins Onan Generator Specifications

Generator • 60 Hz • Three phase

Standby power: 150 kWVoltage options: 6 configurationsDry weight: 3,799 lb (1,723 kg)

Key specifications

150 kW Standby power

6 configurations Voltage options

Three phase Phase

3,799 lb (1,723 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

39.5 kW

Peer average

45.1 kW

51st percentile

Power output

Low 135 kW High 150 kW

Standby

150 kW

Prime

135 kW

Model spec snapshot

Representative numeric specifications from this generator.

150 kWStandby

3,798.56 lbWeight

How the Cummins Onan GFAB 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

150 kW

36% below avg

7th percentile

Dry weight

3,799 lb

36% below avg

22nd percentile

Standby power150 kW

Low 150 kWAverage 232.8 kWHigh 354.6 kW

About 36% below the similar-output Cummins Onan average. Around the 7th percentile for this field.

Dry weight3,799 lb

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

About 36% below the similar-output Cummins Onan average. Around the 22nd percentile for this field.

This model Peer average

Generator information

Manufacturer	Cummins Onan
Model	GFAB
Generator type	Generator
Frequency	60 Hz

Electrical output

Standby power	150 kW
Prime power	135 kW
Standby kVA	187.0
Voltage options	120/208 V, 120/240 V, 220/380 V, 254/440 V, 277/480 V, 347/600 V
Phase	Three phase

Engine, cooling and controls

Engine model	Cummins/Onan GTA8.3-G2
Engine displacement	506 cu in (8.3 L)
Aspiration / cooling	Natural Gas, Propane
Rated engine speed	1800 rpm
Coolant capacity	22.9 gal (86.5 L)
Controller	PowerCommand

Physical specifications

Dry weight	3, 799 lb (1, 723 kg)
Dimensions (L × W × H)	104 × 40 × 54 in (2641 × 1016 × 1372 mm)

Fuel consumption

Standby	1098.0 L/h @ 0%; 1398.0 L/h @ 1%; 1804.0 L/h

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