HomeCummins/OnanCummins/Onan GFBC

Cummins/Onan GFBC Generator Set

The Cummins/Onan GFBC is a 250 kW (312 kVA) Gaseous Fuel standby generator set powered by a Cummins/Onan GTA855G3 engine. It is available at 120/208 V, 120/240 V, 220/380 V, 127/220 V, 347/600 V and 139/240 V, 3-phase and 60 Hz. It holds 97 L (25.6 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 2 group-8 batteries at 24 V. The set measures 3632×1524×1752 mm (143.0×60.0×69.0 in) and weighs about 3239 kg (7141 lb).

250 kW
Standby
14.0 L
Displacement
1
Document types

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Specifications

FuelGaseous Fuel
Frequency60.0 Hz
Standby power250 kW
Standby kVA312
Prime power225 kW
EmissionsEPA SI NSPS
ControllerPowerCommand, PowerCommand digital electronic
AlternatorNPower (4-pole, Class H insulation)
Voltage options120/208 V, 120/240 V, 220/380 V, 127/220 V, 347/600 V, 139/240 V
PhaseThree phase
Power factor0.8
Battery group8D (x2)
Battery voltage24 V
Battery quantity2
Coolant capacity97 L
Max ambient40 °C
Dimensions (L×W×H)3632×1524×1752 mm
Dry weight3239 kg

Engine

Cummins/Onan GTA855G3
Displacement14.0 L
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan GTA855G3
ItemSpecCapacityPart #Interval
Air filter
Fuel filter
Oil filter
Battery
Belt
Coolant
Oil
Spark plug

Common questions

What size generator is the Cummins/Onan GFBC?

The Cummins/Onan GFBC is rated 250 kW standby (312.0 kVA).

Which engine powers the Cummins/Onan GFBC?

The Cummins/Onan GFBC is powered by the Cummins/Onan GTA855G3 engine.

What fuel does the Cummins/Onan GFBC use?

The Cummins/Onan GFBC runs on Gaseous Fuel.

Which alternator is fitted to the Cummins/Onan GFBC?

The Cummins/Onan GFBC uses a NPower alternator. It has 4 poles. Insulation class H.

Fuel consumption

RatingLoadL/hgal/h
Standby25%950.0250.96

Available documents

Spec sheet — Cummins-250-GFBC-Cert GTA8ffe (Cummins/Onan)Spec sheet — GTA855G3GFBC (Cummins/Onan)