Home›Cummins/Onan›Cummins/Onan GFLB Natural Gas Generator Set

Cummins/Onan GFLB Natural Gas Generator Set Generator Set

The Cummins/Onan GFLB Natural Gas Generator Set is a 800 kW (1000 kVA) Natural Gas standby generator set powered by a Cummins/Onan GFLB Natural Gas Generator Set engine. It is available at 110/190 V, 139/240 V, 220/380 V, 277/480 V, 120/240 V, 120/208 V, 240/416 V, 127/220 V and 254/440 V, 3-phase, 60 Hz and rated 2775 A. It holds about 151 L (39.9 gal) of oil and 454 L (119.9 gal) of coolant, with a maximum ambient rating of 100 °C.

800 kW
Standby
50.0 L
Displacement
151.0 L
Oil capacity
1
Document types

How to read your Cummins/Onan serial & model number →

Compare with other 800–805 kW Natural Gas generators →

Specifications

FuelNatural Gas
Frequency60.0 Hz
Standby power800 kW
Standby kVA1000
Prime power720 kW
ControllerDetector 12 Controls
Oil capacity151.0 L
Alternator312B
Voltage options110/190 V, 139/240 V, 220/380 V, 277/480 V, 120/240 V, 120/208 V, 240/416 V, 127/220 V, 254/440 V
Phase3-phase
Rated current2775 A
Power factor0.8
Coolant capacity454 L
Max ambient100 °C

Engine

Cummins/Onan GFLB Natural Gas Generator Set
Oil capacity151.0 L
Coolant capacity454.0 L
Displacement50.0 L
AspirationTurbo Charged, After Cooled
Rated speed1800 rpm

Common questions

How many kW is the Cummins/Onan GFLB Natural Gas Generator Set?

The Cummins/Onan GFLB Natural Gas Generator Set is rated 800 kW standby (1000.0 kVA).

What engine does the Cummins/Onan GFLB Natural Gas Generator Set use?

The Cummins/Onan GFLB Natural Gas Generator Set is powered by the Cummins/Onan GFLB Natural Gas Generator Set engine.

What kind of fuel does the Cummins/Onan GFLB Natural Gas Generator Set run on?

The Cummins/Onan GFLB Natural Gas Generator Set runs on Natural Gas.

How much oil does the Cummins/Onan GFLB Natural Gas Generator Set take?

The Cummins/Onan GFLB Natural Gas Generator Set engine in the Cummins/Onan GFLB Natural Gas Generator Set has an oil capacity of 151.0 liters.

What is the cooling system capacity of the Cummins/Onan GFLB Natural Gas Generator Set?

The Cummins/Onan GFLB Natural Gas Generator Set cooling system holds 454 liters (119.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Cummins/Onan GFLB Natural Gas Generator Set?

The Cummins/Onan GFLB Natural Gas Generator Set is rated 720 kW prime (900 kVA), against 800 kW standby.

What voltage does the Cummins/Onan GFLB Natural Gas Generator Set produce?

The Cummins/Onan GFLB Natural Gas Generator Set is offered in 110/190 V, 139/240 V, 220/380 V, 277/480 V, 120/240 V, 120/208 V, 3-phase-phase.

What alternator comes on the Cummins/Onan GFLB Natural Gas Generator Set?

The Cummins/Onan GFLB Natural Gas Generator Set uses a 312B alternator.

Parts

3
Part #DescriptionQtySystem
309BAlternator Data Sheet Number1Alternator Amazon
311BAlternator Data Sheet Number1Alternator Amazon eBay FridayParts $13.13 KuduParts $30.00 SinoCMP $39.00
312BAlternator Data Sheet Number1Alternator Amazon eBay FridayParts $16.00 SinoCMP $48.00 KuduParts $289.00

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime50%800.0400.0
Prime75%800.0400.0
Prime100%800.0400.0
Standby50%800.0400.0
Standby75%800.0400.0
Standby100%1514.17400.0

Available documents

Parts manual — GFLB (800) (Cummins/Onan)

This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.