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Home›Cummins/Onan›Cummins/Onan C500D6R

Cummins/Onan C500D6R Generator Set

The Cummins/Onan C500D6R is a 500 kW (625 kVA) standby generator set powered by a Cummins/Onan QSX15-G9 NR engine. It is available at 208 V and 480 V, 3-phase and 60 Hz. It holds about 83.3 L (22.0 gal) of oil, with a maximum ambient rating of 45 °C. Starting uses 2 batteries rated 1235 CCA at 24 V. The set measures 6071×2438×2591 mm (239.0×96.0×102.0 in), weighs about 10324 kg (22760 lb) and produces 72 dBA at 7 m. An integrated tank holds 950 L (251.0 gal), roughly 33 hours of runtime.

500 kW
Standby
14.9 L
Displacement
83.3 L
Oil capacity
2
Document types

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On this pageSpecsEngineMaintenanceFuel consumptionDocumentsFAQService intervals

Specifications

Frequency60.0 Hz
Standby power500 kW
Standby kVA625
Prime power450 kW
EmissionsTier 4 Final
ControllerPCC3.3, PowerCommand, PowerCommand 3.3
Oil capacity83.3 L
AlternatorStamford/AvK HC5F
Voltage options208 V, 480 V
Phase3 phase
Circuit breaker1800 A
Battery cranking1235 CCA
Battery voltage24 V
Battery quantity2
Max ambient45 °C
Dimensions (L×W×H)6071×2438×2591 mm
Dry weight5430 kg
Sound level72.0 dBA @ 7 m
Fuel tank950.0 L
Tank runtime33 hr

Engine

Cummins/Onan QSX15-G9 NR
Displacement14.9 L

Maintenance & consumables

for the Cummins/Onan QSX15-G9 NR
ItemSpecCapacityPart #Interval
Air filter—
Fuel filter—
Oil filter—
Battery—
Belt—
Coolant—
Oil83.3 L—
Spark plug—

Service intervals

1
ItemActionHoursMonthsNotes
Maintenance cycleOther500 hrMaintenance cycle 500 hours; improved from Tier 2 maintenance cycle of 250 hours

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 C500D6R?

The Cummins/Onan C500D6R is rated 500 kW standby (625.0 kVA).

What engine is in the Cummins/Onan C500D6R?

The Cummins/Onan C500D6R is powered by the Cummins/Onan QSX15-G9 NR engine.

Which alternator is fitted to the Cummins/Onan C500D6R?

The Cummins/Onan C500D6R uses a Stamford/AvK HC5F alternator.

Fuel consumption

RatingLoadL/hgal/h
Prime34.4130.0
Prime3%30.4115.0
Standby11.644.0
Standby3%34.4130.0

Available documents

Spec sheet — C500D6R-EN (Cummins/Onan)Spec sheet — rental-generator-sets-rating-cards-north-america-50-60hz-2025-aug (Cummins/Onan)Spec sheet — s-1279 (Cummins/Onan)Reference — 0069718 (Cummins/Onan)