C9 (60 Hz)

C9 Generator Set

C9 (60 HZ) 180-300 kW Diesel Generator generator sets are made to fufill current and future standby and prime applications with reliable power.

C9 Open Generating Set Rear Right


Producing reliable power from 180 to 300 ekW at 60 Hz, our C9 diesel generator sets designed to ISO 8528-5 transient response requirements. All C9 generator sets are engineered to EPA Stationary Emergency (Tier 3) emissions standards with low fuel consumption.Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.Electric Power

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

Cat Diesel Engine

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight

R-Frame Alternator

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

GCCP1.3 Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

Cooling System

  • Designed to operate in standard ambient temperatures up to 55°C (131°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities


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.

One Safe Source

  • Components used in the generator set are selected based on seamless design integration to provide the optimum performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

Standard Equipment

  • Air Inlet System
    • Air cleaner, light duty with disposable paper filter
    • Turbocharger
    • Air cleaner, light duty with disposable paper filter
  • Control Panels
    • GCCP 1.3
    • EMCP4.4 control panel
  • Cooling System
    • Radiator and cooling fan with guard
    • Fan drive, battery charging alternator drive
    • Coolant drain line with valve
    • Caterpillar extended life coolant
    • Radiator and cooling fan with guard
  • Exhaust System
    • Stainless steel exhaust flex, gaskets, rain cap & SAE exhaust flange for customer use - shipped loose
    • Flange for customer; shipped loose
    • Stainless steel exhaust flex, gaskets, rain cap and SAE exhaust
  • Fuel System
    • Standard open set fuel tank/base supplied
    • Base, formed steel with single wall integral 8-hour fuel tank
    • Standard open set fuel tank/base supplied
    • Base, formed steel with single wall integral 8-hour fuel tank
  • Generators and Generator Attachments
    • Mandatory option circuit breaker, IEC, 3 pole mounted in power centre
    • Power centre, IP22
    • Voltage regulator (single phase sensing)
    • 12 Leads
    • IP23 Protection
    • Segregated low voltage (AC/DC) wiring panel
    • IP23 Protection
    • 12 Leads
  • Governing System
    • Cat electronic governor (ADEM A4)
    • 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
    • Engine and alternator re-paint, Caterpillar yellow

Optional Equipment

  • Certifications
    • European Certificate for Conformance
    • Global Certification for CIS
  • Air inlet system
    • Single element air cleaner
  • Circuit breakers
    • 4 Pole (IEC-100% rated) Circuit breaker upgrades: 400, 630, 800 and 100 amps
  • Control Panels
    • Oil temperature displays
    • Control panel protective devices: Earth fault relay ; Earth leakage ground fault ; overload shutdown via breaker ; Low fuel level shutdown ; Low fuel level alarm ; Fuel level sensor
  • Cooling System
    • Radiator duct flange
    • Low coolant temperature alarm
  • Enclosures
    • Sound attenuated enclosure
    • High ambient sound attenuated enclosure
  • Exhaust System
    • Mufflers - End in/end out; 10 dBA or 25 dBA attenuation
    • 5 and 6 inch elbow kits
    • 6 inch flange
    • 5 - 6 inch flange adaptor
  • Fuel System
    • Integral dual wall fuel tank base
  • Generators and Attachments
    • Permanent magnet excitation (PMG) generator
    • Oversize, AREP, CIP generators
  • Mounting System
    • Narrow skid base
  • Starting / Charging System
    • Battery disconnet switch
    • Jacket water heater
    • 5 Amp single Battery charger



Long Name:
C9 Generator Set
C9 (60 Hz)

Generator Set Specifications

Maximum Rating
300 ekW
Minimum Rating
180 ekW
Emissions/Fuel Strategy
EU Stage IIIA, Low Fuel
220 to 480 Volts
60 Hz
1800 rpm
Duty Cycle
Standby, Prime

Engine Specifications

Engine Model
C9 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
4.41 in / 112 mm
5.87 in / 149 mm
537.01 in³ / 8.8 l
Compression Ratio
Air to Air Aftercooled
Fuel System
Hydraulic electronic unit injection
Governor Type

Generator Set Dimensions

Length - Maximum
157 in / 3988 mm
Width - Maximum
47.5 in / 1207 mm
Height - Maximum
73.5 in / 1867 mm