Cummins/Onan QSB5-series — Specs, Engine, Parts & Maintenance

Name: Cummins/Onan QSB5-series Generator Set
Brand: Cummins/Onan

Cummins/Onan QSB5-series Generator Set

The Cummins/Onan QSB5-series is a 70 kW (119 kVA) standby generator set powered by a Cummins/Onan QSB5 engine. It is available at 120/240 V, 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, three-phase-phase and 60 Hz. Starting uses battery rated 650 CCA. The set measures 2184×1092×1727 mm (86.0×43.0×68.0 in).

70 kW

Standby

4.5 L

Displacement

Document types

Specifications

Frequency	60.0 Hz
Standby power	70 kW
Emissions	EPA-certified Tier 4 Final
Controller	PowerCommand 3.3
Voltage options	120/240 V, 120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 254/440 V, 277/480 V, 347/600 V
Phase	three-phase
Power factor	0.8
Battery cranking	650 CCA
Dimensions (L×W×H)	2184×1092×1727 mm

Engine

Cummins/Onan QSB5

Displacement	4.5 L
Aspiration	Turbocharged and charge air cooled
Rated speed	2150 rpm

Maintenance & consumables

for the Cummins/Onan QSB5

Item	Spec	Part #
Air filter		—	find
Fuel filter		—	find
Oil filter		—	find
Belt		—	find
Coolant		—
Oil	Lube oil filter type(s)	—

Common questions

What is the power rating of the Cummins/Onan QSB5-series?

The Cummins/Onan QSB5-series is rated 70 kW standby.

What engine does the Cummins/Onan QSB5-series use?

The Cummins/Onan QSB5-series is powered by the Cummins/Onan QSB5 engine.

Fuel consumption

Rating	Load	L/h	gal/h
Prime
Standby

Available documents

Spec sheet — A042J399 (Cummins/Onan)

Other sets with this engine

Cummins/Onan C100 D6 Cummins/Onan C125 D6C Cummins/Onan C50D6 Cummins/Onan C60D6 Cummins/Onan C80 D6 Cummins/Onan C80D6 Cummins/Onan QSB5-G7 Cummins/Onan QSB5-G8 Cummins/Onan QSB5-G9