C9 Generator Set

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Cat Generator Set Packages

Cat® generator set packages have been fully prototype tested, and certified torsional vibration analysis reports are available. The packages are designed to meet the NFPA 110 requirement for loading, and conform to the ISO 8528-5 steady state and transient response requirements.

Cat Diesel Engines

The four cycle Cat diesel engine combines consistent performance with excellent fuel economy and transient response that meets or exceeds ISO 8528-5. The engines have been designed and built for a wide range of applications and can be optimized for low fuel consumption or low emissions. The engines feature a reliable, rugged, and durable design that has been field proven in thousands of applications worldwide from emergency standby installations to continuously operating power plants.

Cooling System

The cooling system has been designed to operate in standard ambient temperatures up to 50°C (122°F) with an air flow restriction of 0.5 in water. The factory installed cooling system has been designed and tested to ensure proper generator set cooling, and includes the radiator, fan, belts, and all guarding installed as standard. Contact your Cat Dealer for specific ambient and altitude capabilities.


The generators used on Cat packages have been designed and tested to work with the Cat engine. The generators are built with robust Class H insulation and provide industry leading motor starting capability. They provide high efficiency in a majority of applications and optional coastal protection for the windings is available for harsh environments.

Cat EMCP Control Panel

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

World Wide Product Support

Cat Dealers provide extensive post sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

Generator Set Specifications
Minimum Rating 180 ekW
Maximum Rating 300 ekW
Voltage 220-480 Volts
Frequency 60 Hz
Speed 1800 RPM
Generator Set Configurations
Emissions/Fuel Strategy EU Stage IIIA, Low Fuel Consumption
Engine Specifications
Engine Model C9 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Bore 112 mm (4.41 in)
Displacement 8.8 L (537.01 inu00b3)
Stroke 149 mm (5.87 in)
Compression Ratio 16.1:1
Aspiration Air to Air Aftercooled
Governor Type Adem™A4
Fuel System Hydraulic electronic unit injection

Standard Equipment

  • Air Inlet System
    • Air cleaner, light duty with disposable paper filter
  • Control Panels
    • EMCP4.4 control panel
  • Cooling System
    • Radiator and cooling fan with guard
    • Coolant drain line with valve
    • Fan drive, battery charging alternator drive
    • Caterpillar extended life coolant
  • Exhaust System
    • Stainless steel exhaust flex, gaskets, rain cap and SAE exhaust
    • Flange for customer; shipped loose
  • Fuel System
    • Standard open set fuel tank / base supplied
    • Base, formed steel with single wall integral 8-hour fuel tank
  • Generators and Generator Attachments
    • 12 leads
    • IP23 protection
    • Voltage regulator (single phase sensing)
    • Power centre, IP22
    • Segregated low voltage (AC/DC) wiring panel
    • Mandatory option circuit breaker, IEC, 3 pole
  • Governing System
    • Cat electronic governor (ADEM A4)
  • Lube System
    • Oil cooler
    • Lubricating oil
    • Oil drain valves
  • Mounting System
    • Captive linear vibration isolators between base and engine-generator
    • Includes lifting provisions and termination points for coolant and lube oil drain lines
  • Starting / Charging System
    • 24V battery with rack and cables
  • General
    • Engine and alternator re-paint, Caterpillar Yellow

Optional Equipment

  • Certifications
    • European Certifications
    • Global Certifications
  • Air inlet system
    • Single element air cleaner
  • Control Panels
    • Volt free contact
    • Local alarm horn
    • Oil temperature displays
    • Earth fault relay
    • Earth leakage ground fault relay
    • Overload alarm switch
    • Low fuel level alarm
    • Low fuel level shutdown
    • High fuel level alarm
    • Fuel level sensor
  • Control System
    • Stone guard / radiator trans flance
    • Low coolant temperature alarm
  • Enclosures
    • High ambient sound attenuated enclosure
    • Sound attenuated enclosure
  • Exhaust System
    • Muffler – 10 dBA attenuation
    • Muffler – 25 dBA attenuation
  • Fuel
    • Integral duel wall fuel tank base
  • Generators
    • Permanent magnet generator
    • LC frame generator
  • Mounting System
    • Narrow skid base
  • Special Packing / Inspectons for Shipment
    • Special tests / reports
    • Special packing for shipping
    • Special inspections
  • Starting / Charging
    • Battery charger 5 amp single
    • Battery removal
    • Battery disconnet switch
    • Jacket water heater

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