QSJ8.9G

Cummins Power Generation generator sets are fully integrated power generation systems providing optimum performance, reliability and versatility for stationary standby applications.

Frequency

60 Hz

Rated for kW kVA
Standby 125 - 200 156 - 250

Certification

EPA

Product Availability

North America

Applications

Standby Power
Cummins QSJ9.8G Generator
2024 product of the year bronze award
QSJ8.9G Natural Gas standby generators wins bronze from consulting-specifying engineer magazine

QSJ8.9 generators won bronze in the Power Category of the prestigious Consulting Specifying Engineer (CSE) 2024 Product of the Year awards. These models are available for completely integrated power systems, serving a wide range of applications with unmatched reliable power in a compact package.

Features & Benefits

  • Gas engine - Rugged 6-cyclinder Cummins QSJ8.9G spark-ignited engine delivers reliable power. The electronic air/fuel ratio control provides optimum engine performance and fast response to load changes.
  • Alternator - Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings, low waveform distortion with non-linear loads and fault clearing short-circuit capability.
  • Control system - The PowerCommand® 2.3 electronic control is standard equipment and provides total generator set system integration including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, output metering, auto-shutdown at fault detection and NFPA 110 Level 1 compliance. The PowerCommand 3.3 control is also available as an option.
  • Cooling system - Standard cooling package provides reliable running at up to 50° C (122° F) ambient temperature.
  • Enclosures - The aesthetically appealing enclosure incorporates special designs that deliver one of the quietest generators of its kind. Aluminum material plus durable powder coat paint provides the best anti-corrosion performance. The generator set enclosure has been evaluated to withstand 180 MPH wind loads in accordance with ASCE7-10. The design has hinged doors to provide easy access for service and maintenance.
  • NFPA - The generator set accepts full rated load in a single step in accordance with NFPA 110 for Level 1 systems.
  • Warranty and service - Backed by a comprehensive warranty and worldwide distributor and dealer network.
Specifications
Engine QSJ8.9G
Bore 114.1 mm
Stroke 144.5 mm
Displacement 8.9L
Cylinder Block Cast iron, in-line 6 cylinder
Starting Voltage 12-Volt, negative ground
Fuel system Natural gas and Propane (125 and 150 kW)
Standard cooling system 125 kW - 50 °C (122 °F) ambient cooling system
150 kW - 45 °C (113 °F) ambient cooling system
175 kW - 50° C (122° F) ambient cooling system
200 kW - 45° C (113° F) ambient cooling system
Alternator Stamford UC series, Brushless, 4 pole, single bearing, revolving field
Controller PCC 2.3 with 3.3 option
Batttery capacity 850 amps standard, dual battery optional
Fuel tank NA
generator model
Spec Sheet
Hz
Standby kW / kVA
fuel type
Availability
engine model
rating
cert
60
125 / 156
NG/Propane
QSJ8.9G
60
150 / 188
NG/Propane
QSJ8.9G
60
175 / 218
Natural Gas
QSJ8.9G
60
200 / 250
Natural Gas
QSJ8.9G
60
150 / 188
Propane
North America
QSJ8.9G
Standby
E.U., mobile application, E.U., stationary application, EPA, nonroad (portable) application, EPA, stationary emergency application, EPA, stationary non-emergency application
60
125 / 156
Propane
North America
QSJ8.9G
Standby
E.U., mobile application, E.U., stationary application, EPA, nonroad (portable) application, EPA, stationary emergency application, EPA, stationary non-emergency application
60
200 / 250
Natural Gas
North America
QSJ8.9-G3
Standby
E.U., mobile application, E.U., stationary application, EPA, nonroad (portable) application, EPA, stationary emergency application, EPA, stationary non-emergency application
60
175 / 219
Natural Gas
North America
QSJ8.9-G3
Standby
E.U., mobile application, E.U., stationary application, EPA, nonroad (portable) application, EPA, stationary emergency application, EPA, stationary non-emergency application
60
Natural Gas
North America
QSJ8.9G
Standby
U.S. EPA, Stationary Emergency Application; Outside of U.S. and E.U. Application
60
Natural Gas
North America
QSJ8.9G
Standby
U.S. EPA, Stationary Emergency Application; Outside of U.S. and E.U. Application
60
Natural Gas
North America
QSJ8.9G
Standby, Prime
U.S. EPA, Stationary Emergency Application; Outside of U.S. and E.U. Application
60
Natural Gas
North America
QSJ8.9G
Standby, Prime
U.S. EPA, Stationary Emergency Application; Outside of U.S. and E.U. Application


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Generator Models

Frequency (Hz)

60

Fuel Type

Propane

Standby

150 kW

188 kVA

Frequency (Hz)

60

Fuel Type

Propane

Standby

125 kW

156 kVA

Frequency (Hz)

60

Fuel Type

Natural Gas

Standby

200 kW

250 kVA

Frequency (Hz)

60

Fuel Type

Natural Gas

Standby

175 kW

219 kVA

Frequency (Hz)

60

Fuel Type

Natural Gas

Frequency (Hz)

60

Fuel Type

Natural Gas

Frequency (Hz)

60

Fuel Type

Natural Gas

Frequency (Hz)

60

Fuel Type

Natural Gas

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