HomeCummins/OnanCummins/Onan C450N6

Cummins/Onan C450N6 Generator Set

The Cummins/Onan C450N6 is a 450 kW (562 kVA) Gaseous (natural gas, NG) standby generator set powered by a Cummins/Onan GTA28E 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 about 68 L (18.0 gal) of oil and 246 L (65.0 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 2 group-8 batteries rated 1400 CCA at 24 V. The set measures 4216×2083×2486 mm (166.0×82.0×97.9 in).

450 kW
Standby
28.0 L
Displacement
68.0 L
Oil capacity
1
Document types

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

Compare with other 450–455 kW Natural Gas generators →

Specifications

FuelGaseous (natural gas, NG)
Frequency60.0 Hz
Standby power450 kW
Standby kVA562
ControllerPowerCommand 3.3 (PCC3300
Oil capacity68.0 L
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
Power factor0.8
Battery group8D
Battery cranking1400 CCA
Battery voltage24-volt, negative ground V
Battery quantity2
Max ambient40 °C
Dimensions (L×W×H)4216×2083×2486 mm

Engine

Cummins/Onan GTA28E
Oil capacity68.0 L
Coolant capacity246.0 L
Displacement28.0 L
AspirationTurbocharged and coolant-air aftercooled
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan GTA28E
ItemSpecCapacityPart #Interval
Air filter
Fuel filter
Oil filter
Battery
Belt
Coolant
Oil
Spark plug

Service specifications

8
TypeItemValueUnitCondition
OtherFrequency regulationIsochronous
PressureFuel inlet pressure at fuel shut off valve under full load254 to 508mm WC (10 to 20 in. WC)full load
PressureMaximum fuel supply pressure635mm WC (25 in. WC)under any conditions
SpeedRandom frequency variation±0.5%
TemperatureAlternator standard temperature rise125°Cstandard
TemperatureTemperature rise for UL 1004 ratings120°Cor below, ambient temperature up to 40 °C
VoltageRandom voltage variation±1%three-phase only
VoltageVoltage regulation, no load to full load±1%

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
FuelNatural gas (NG)Fuel inlet pressure measured at the fuel shut off valve while under full load must be 254 to 508 mm WC (10 to 20 in. WC). Fuel supply pressure must not exceed 635 mm WC (25 in. WC) under any conditions. Additional options in the fuel train (CSA compliance, flexible fuel connections, strainers) add restriction that must be considered when determining gas supply pressure.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the power rating of the Cummins/Onan C450N6?

The Cummins/Onan C450N6 is rated 450 kW standby (562.0 kVA).

What engine does the Cummins/Onan C450N6 use?

The Cummins/Onan C450N6 is powered by the Cummins/Onan GTA28E engine.

What kind of fuel does the Cummins/Onan C450N6 run on?

The Cummins/Onan C450N6 runs on Gaseous (natural gas, NG).

How much oil does the Cummins/Onan C450N6 take?

The Cummins/Onan GTA28E engine in the Cummins/Onan C450N6 has an oil capacity of 68.0 liters.

What is the coolant capacity of the Cummins/Onan C450N6?

The Cummins/Onan C450N6 cooling system holds 246 liters (65.0 US gallons) for the engine, per the manufacturer specification sheet.

What voltages is the Cummins/Onan C450N6 available in?

The Cummins/Onan C450N6 is offered in 120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 254/440 V, 3-phase.

What battery does the Cummins/Onan C450N6 use?

The Cummins/Onan C450N6 uses 2 batteryies, 24-volt, negative ground V each, 1400 CCA, group 8D, per the manufacturer specification sheet.

Available documents

Spec sheet — A058M538 (Cummins/Onan)Spec sheet — cummins-c500n6b-spec-sheet-1776614037 (Cummins/Onan)

This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Other sets with this engine