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Cummins/Onan GFLB Generator Set

The Cummins/Onan GFLB is a 650 kW (813 kVA) natural gas standby generator set powered by a Cummins/Onan GTA50G2 engine. It is available at 120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 254/440 V, 277/480 V and 347/600 V, 3-phase and 60 Hz. It holds 326 L (86.1 gal) of coolant, with a maximum ambient rating of 75 °C. Starting uses 4 group-8 batteries rated 1000 CCA at 24 V. The set measures 5182×2515×2744 mm (204.0×99.0×108.0 in) and weighs about 10313 kg (22736 lb).

650 kW
Standby
50.0 L
Displacement
1
Document types

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Specifications

Fuelnatural gas
Frequency60.0 Hz
Standby power650 kW
Standby kVA813
Prime power650 kW
EmissionsEPA SI NSPS Compliant Capable
ControllerPowerCommand 3.3, PowerCommand digital electronic
AlternatorCummins/Onan Revolving field, single bearing, 4-pole, brushless, drip-proof construction
Voltage options120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 254/440 V, 277/480 V, 347/600 V
Phase3-phase
Power factor0.8
Battery group8D
Battery cranking1000 CCA
Battery voltage24 V
Battery quantity4
Coolant capacity326 L
Max ambient75 °C
Dimensions (L×W×H)5182×2515×2744 mm
Dry weight10313 kg

Engine

Cummins/Onan GTA50G2
Displacement50.0 L
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan GTA50G2
ItemSpecCapacityPart #Interval
Air filter— find
Fuel filter— find
Oil filter— find
Belt— find
Coolant—
Oil—

Common questions

What is the power rating of the Cummins/Onan GFLB?

The Cummins/Onan GFLB is rated 650 kW standby (813.0 kVA).

What engine does the Cummins/Onan GFLB use?

The Cummins/Onan GFLB is powered by the Cummins/Onan GTA50G2 engine.

What fuel does the Cummins/Onan GFLB use?

The Cummins/Onan GFLB runs on natural gas.

What alternator does the Cummins/Onan GFLB use?

The Cummins/Onan GFLB uses a Cummins/Onan Revolving field, single bearing, 4-pole, brushless, drip-proof construction alternator.

Fuel consumption

RatingLoadL/hgal/h
Prime100%
Standby0%
Standby0%
Standby0%
Standby1%

Available documents

Spec sheet — Cummins-815-GFLB GTA50 (Cummins/Onan)Spec sheet — GFLB (800)Spec sheet — GTA50G2GFLB (Cummins/Onan)