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Cummins/Onan DFHB Generator Set

The Cummins/Onan DFHB is a 800 kW (1000 kVA) standby generator set powered by a Cummins/Onan QST30-G2 engine. It is available at 110/190 V, 120/208 V, 139/240 V, 220/380 V, 230/400 V, 240/416 V, 277/480 V and 347/600 V, three phase-phase and 60 Hz. It holds about 140 L (37.0 gal) of oil and 53 L (14.0 gal) of coolant, with a maximum ambient rating of 95 °C. Starting uses battery rated 1280 CCA at 24 V. The set measures 4260×1743×2328 mm (167.7×68.6×91.7 in) and weighs about 7676 kg (16923 lb).

800 kW
Standby
30.48 L
Displacement
140.0 L
Oil capacity
3
Document types

Specifications

Frequency60.0 Hz
Standby power800 kW
Standby kVA1000
Prime power725 kW
ControllerPCC Control 3100, PowerCommand
Oil capacity140.0 L
Voltage options110/190 V, 120/208 V, 139/240 V, 220/380 V, 230/400 V, 240/416 V, 277/480 V, 347/600 V
Phasethree phase
Power factor0.8
Battery cranking1280 CCA
Battery voltage24 V
Coolant capacity53.0 L
Max ambient95 °C
Dimensions (L×W×H)4260×1743×2328 mm
Dry weight7676 kg

Engine

Cummins/Onan QST30-G2
Oil capacity140.0 L
Displacement30.48 L
AspirationTurbo Aftercooled
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan QST30-G2
ItemSpecCapacityPart #Interval
Air filterAir Cleaner: Maximum Air Cleaner Restriction, 25.0 in. H2O (6.2 kPa) find
Belt find
Coolant
Fuel filter find
OilLube Oil Filter Types: Four spin-on, full flow; two bypass oil filters
Oil filter find

Parts

2model family
Part #DescriptionQtySystem
DS10Left actuator drive is active. The PCC duty cycle range is 25 - 93%. When running, the maximum duty cycle is about 63%. Note that the brighter the LED, the larger the duty cycle (Green)Led buy
DS11Right actuator drive is active. See DS10 description (Green)Led buy

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Spec sheetParts manualService manual