HomeCummins/OnanCummins/Onan C120D5

Cummins/Onan C120D5 Generator Set

The Cummins/Onan C120D5 is a 96 kW (120 kVA) Diesel standby generator set powered by a Cummins/Onan 6BT5.9-G6 engine. It is available at 255/440 V, 230/400 V, 220/380 V, 127/220 V and 277/480 V, 3-phase, 50 Hz and rated 95 A. It holds about 100 L (26.4 gal) of oil and 100 L (26.4 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 1 group-100 battery at 12 V. The set measures 2220×1050×1572 mm (87.4×41.3×61.9 in), weighs about 1135 kg (2502 lb) and produces 85 dBA at 1 m. An integrated tank holds 250 L (66.0 gal), roughly 10 hours of runtime.

96 kW
Standby
5.88 L
Displacement
100.0 L
Oil capacity
1
Document types

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Typical fuel consumption for 95–100 kW Diesel generators →

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Specifications

FuelDiesel
Frequency50.0 Hz
Standby power96 kW
Standby kVA120
Prime power87 kW
EmissionsTier 1
ControllerPowerCommand
Oil capacity100.0 L
Alternator6BTA5.9-G6 (2-pole, Class H insulation)
Voltage options255/440 V, 230/400 V, 220/380 V, 127/220 V, 277/480 V
Phase3
Rated current95 A
Power factor0.8
Circuit breaker95 A
Battery group100 AH
Battery voltage12 V
Battery quantity1
Coolant capacity100 L
Max ambient40 °C
Dimensions (L×W×H)2220×1050×1572 mm
Dry weight1135 kg
Wet weight1925 kg
Sound level85.0 dBA @ 1 m
Fuel tank250.0 L
Tank runtime10 hr

Engine

Cummins/Onan 6BT5.9-G6
Oil capacity100.0 L
Coolant capacity100.0 L
Displacement5.88 L
AspirationTurbocharged
Rated speed1500 rpm

Maintenance & consumables

for the Cummins/Onan 6BT5.9-G6
ItemSpecCapacityPart #Interval
Air filterNormal duty air filter.
Fuel filterOil and fuel filter fitted, water separator.
Oil filterOil and fuel filter fitted, water separator.
Battery460 amps minimum at ambient temperature of 32°F (0°C)
BeltN/A
CoolantCoolant capacity (engine and radiator)24.6 l
OilLubrication system oil capacity16.4 l
Spark plugN/A

Common questions

How many kW is the Cummins/Onan C120D5?

The Cummins/Onan C120D5 is rated 96 kW standby (120.0 kVA).

What engine does the Cummins/Onan C120D5 use?

The Cummins/Onan C120D5 is powered by the Cummins/Onan 6BT5.9-G6 engine.

Is the Cummins/Onan C120D5 diesel or gas?

The Cummins/Onan C120D5 runs on Diesel.

What's the oil capacity on a Cummins/Onan C120D5?

The Cummins/Onan 6BT5.9-G6 engine in the Cummins/Onan C120D5 has an oil capacity of 100.0 liters.

Which alternator is fitted to the Cummins/Onan C120D5?

The Cummins/Onan C120D5 uses a 6BTA5.9-G6 alternator. It has 2 poles. Insulation class H.

Fuel consumption

RatingLoadL/hgal/h
Prime24.06.34
Prime75%1.55.7
Standby27.07.13
Standby75%1.55.7

Available documents

Spec sheet — C120D5 EN (Cummins/Onan)Spec sheet — S-6319-EN (Cummins/Onan)
Other sets with this engine