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Cummins/Onan DFHA Generator Set

The Cummins/Onan DFHA is a 750 kW (938 kVA) diesel standby generator set powered by a Cummins/Onan QST30-G1 engine. It is available at 120/208 V, 139/240 V, 220/380 V, 230/400 V, 240/416 V, 277/480 V and 347/600 V, 3-phase and 60 Hz. It holds about 132.5 L (35.0 gal) of oil and 200.6 L (53.0 gal) of coolant. The set measures 4260×1743×2328 mm (167.7×68.6×91.7 in) and weighs about 7676 kg (16923 lb). The same QST30-G1 engine also powers generator sets from MQ Power.

750 kW
Standby
30.5 L
Displacement
132.5 L
Oil capacity
3
Document types

Specifications

Fueldiesel
Frequency60.0 Hz
Standby power750 kW
Standby kVA938
Prime power680 kW
EmissionsEPA stationary
ControllerPCC Control 3100, PowerCommand
Oil capacity132.5 L
Voltage options120/208 V, 139/240 V, 220/380 V, 230/400 V, 240/416 V, 277/480 V, 347/600 V
Phase3
Coolant capacity200.6 L
Dimensions (L×W×H)4260×1743×2328 mm
Dry weight7676 kg

Engine

Cummins/Onan QST30-G1
Oil capacity140.0 L
Coolant capacity201.0 L
Displacement30.5 L
Aspirationturbocharged, aftercooled
Rated speed1800 rpm

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.

Fuel consumption

RatingLoadL/hgal/h
Prime25%56.014.7
Prime50%98.025.9
Prime75%137.036.3
Prime100%185.049.0
Standby25%61.016.0
Standby50%99.026.2
Standby75%153.040.5
Standby100%207.054.7

Available documents

Spec sheetParts manualService manual