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Cummins/Onan DSGAC Generator Set

The Cummins/Onan DSGAC is a 150 kW (188 kVA) Diesel standby generator set powered by a Cummins/Onan qsb7g5nr3 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, 347/600 V and 120/240 V, 3-phase and 60 Hz. It holds about 17.5 L (4.6 gal) of oil and 23 L (6.1 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses battery rated 1100 CCA at 12 V. The set measures 2656×1100×1549 mm (104.6×43.3×61.0 in) and weighs about 1263 kg (2784 lb).

150 kW
Standby
6.7 L
Displacement
17.5 L
Oil capacity
1
Document types

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

Typical fuel consumption for 150–155 kW Diesel generators →

Compare with other 150–155 kW Diesel generators →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power150 kW
Standby kVA188
Prime power135 kW
EmissionsEPA NSPS Stationary Emergency Tier 3
ControllerPowerCommand 1.1, PowerCommand 1.1 (optional PowerCommand 2.2)
Oil capacity17.5 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, 120/240 V
PhaseThree phase
Power factor0.8
Battery cranking1100 amps minimum at ambient temperature of -18 °C to 0 °C (0 °F to 32 °F) CCA
Battery voltage12 volt, negative ground V
Coolant capacity23 L
Max ambient50 °C
Dimensions (L×W×H)2656×1100×1549 mm
Dry weight1263 kg
Wet weight1263 kg

Engine

Cummins/Onan qsb7g5nr3
Oil capacity17.5 L
Coolant capacity23.0 L
Displacement6.7 L
AspirationTurbocharged and air-to-air after-cooled
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan qsb7g5nr3
ItemSpecCapacityPart #Interval
Battery12—
Coolant-45—

Service specifications

21
TypeItemValueUnitCondition
OtherAC waveform Total Harmonic Distortion (THDV)< 5% no load to full linear load, < 3% for any single harmonic
OtherAC waveform total harmonic distortion< 5% no load to full linear load, < 3% for any single harmonic%
OtherCompression ratio17.2:1
OtherGovernor regulation classISO 8528 Part 1 Class G3
OtherTelephone harmonic factor (THF)< 3
OtherTelephone influence factor (TIF)< 50 per NEMA MG1-22.43
PressureMaximum air cleaner restriction3.7kPa
PressureMaximum back pressure10kPa
PressureMaximum cooling air flow static restriction0.12kPa
PressureMaximum fuel inlet restriction with clean filter127mm Hgwith clean filter
PressureMaximum return restriction152mm Hg
SpeedFrequency regulationIsochronous
SpeedGovernor regulation classISO8528 Part 1 Class G3
SpeedOverspeed limit2100rpm
SpeedRandom frequency variation± 0.25%
SpeedRandom frequency variation± 0.25%%
TemperatureStandard temperature rise150°CStandby at 40 °C ambient
VoltageRandom voltage variation± 0.5%
VoltageRandom voltage variation± 0.5%%
VoltageVoltage regulation, no load to full load± 1%%
VoltageVoltage regulation, no load to full load± 1.0%no load to full load

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
FuelNumber 2 diesel fuelDirect injection; single element, 10 micron filtration, spin-on fuel filter with water separator; automatic electric fuel shutoff

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

How many kW is the Cummins/Onan DSGAC?

The Cummins/Onan DSGAC is rated 150 kW standby (188.0 kVA).

What engine is in the Cummins/Onan DSGAC?

The Cummins/Onan DSGAC is powered by the Cummins/Onan qsb7g5nr3 engine.

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

The Cummins/Onan DSGAC runs on Diesel.

What is the oil capacity of the Cummins/Onan DSGAC?

The Cummins/Onan qsb7g5nr3 engine in the Cummins/Onan DSGAC has an oil capacity of 17.5 liters.

How much coolant does the Cummins/Onan DSGAC hold?

The Cummins/Onan DSGAC cooling system holds 23 liters (6.1 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Cummins/Onan DSGAC?

The Cummins/Onan DSGAC is rated 135 kW prime (169 kVA), against 150 kW standby.

How much does the Cummins/Onan DSGAC weigh?

The Cummins/Onan DSGAC has a dry weight of 1263 kg (2784 lb).

What voltage does the Cummins/Onan DSGAC produce?

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

How many cold cranking amps does the Cummins/Onan DSGAC require?

The Cummins/Onan DSGAC uses 12 volt, negative ground V each, 1100 amps minimum at ambient temperature of -18 °C to 0 °C (0 °F to 32 °F) CCA, per the manufacturer specification sheet.

Fuel consumption

RatingLoadL/hgal/h
Prime25%17.73.88
Prime50%23.96.32
Prime75%33.28.77
Prime100%40.910.81
Standby25%15.44.08
Standby50%26.36.94
Standby75%35.99.49
Standby100%44.411.73

Available documents

Spec sheet — Cummins-150-DSGAC QSB7 (Cummins/Onan)Spec sheet — Cummins-175-DSGAD QSB7 (Cummins/Onan)Spec sheet — Cummins-200-DSGAE QSB7 (Cummins/Onan)Spec sheet — Cummins-DSGAA-spec-sheet (Cummins/Onan)Spec sheet — Cummins-DSGAC-data-sheet (Cummins/Onan)Spec sheet — Cummins-DSGAC-spec-sheet (Cummins/Onan)Spec sheet — S-1544 (Cummins/Onan)

This page was generated from the 7 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.