C18 Generator Set

C18 Generator Set

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Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

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Generator Set Specifications

Maximum Rating
600 ekW
Minimum Rating
455 ekW
Emissions/Fuel Strategy
U.S. EPA Cert., Tier 2
208 to 600 Volts
60 Hz
1800 rpm
Duty Cycle
Standby, Prime

Engine Specifications

Engine Model
C18 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Compression Ratio
Air to Air Aftercooled
Fuel System
Electronic unit injection
Governor Type

Generator Set Dimensions

Length - Maximum
Width - Maximum
Height - Maximum

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

A-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

GCCP 1.2 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


UL2200 Listed; CSA 22.2; Certification of Compliance – IBC Seismic; Dual IBC & HCAI

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:

    Air Inlet System
    • Single element air cleaner
    • Dual element air cleaner
    • Industrial, residential, critical mufflers
    • Oversize and premium generators
    • Excitation: [ ] Permanent magnet excitation (PMG) Excited (PM) [ ] Internally Excited (IE)
    • Anti-condensation heater
    Power Termination
    • Circuit breakers, UL listed
    • Circuit breakers, IEC compliant
    Circuit Breakers
    • 3 Pole (IEC-100% rated) Circuit breakers - Motorised
    • 4 Pole (IEC-100% rated) Circuit breakers - Motorised
    • Shunt trip for IEC breaker
    • Power terminal strip
    • Circuit breaker (IEC) Auxiliary contacts
    • 3 Pole (IEC-100% rated) Circuit breakers - Package mounted
    • Padlockable circuit breaker device
    • 4 Pole (IEC-100% rated) Circuit breakers - Package mounted
    Control Panels
    • Remote monitoring software
    • Load share module
    • Local & remote annunciator modules
    • GCCP 1.2, GCCP 1.5
    • Digital I/O module
    Control System
    • Local alarm modules
    • Volt free contact
    • Local alarm horn
    • Remote annunciator module
    • Oil temperature displays
    • Protective devices: Earth fault relay - earth leageage Ground fault relay - Overload shutdown via breaker - Low fuel level alarm - Low fuel level shutdown - High fuel level alarm - Fuel level sensor
    • GCCP 1.5
    Cooling System
    • Low coolant temperature alarm
    • Radiator duct flange
    • Sound attenuated enclosures
    • Jacket water heater
    • Battery chargers
    • Heavy duty starting system
    • Oversize batteries
    • Charging alternator
    Exhaust System
    • 8 and 10 inch GP flanges
    • 8 and 10 inch elbow kits
    • Engine mounted muffler
    • 10, 25 and 35 end in / end out mufflers
    • Manifold and turbocharger guards
    Fuel System
    • Manual fuel transfer pump
    • Fuel transfer system
    • Integral - Dual wall fuel tank base
    • Sound attenuated, weather protective or high ambient weather protective enclosure
    • Integral & sub-base UL listed dual wall fuel tanks
    • CSA Certification
    • Automatic transfer switches (ATS)
    • The following options are based on regional and product configuration:
    • Single or dual wall sub-base fuel tanks
    • EU Certificate of Conformance (CE)
    • EEC Declaration of Conformity
    • UL 2200 package
    • Single or dual wall integral fuel tanks
    • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
    • Narrow, wide or skid base
    • Enclosures: Sound attenuated, weather protective
    Generator And Attachments
    • Space heaters
    • A Frame CIP generator
    • Permanent magnet excitation (PMG)
    • LC frame generator
    • A Frame oversize generator
    • Ingress protection
    • LC frame CIP generator
    • LC frame oversize generators
    Lube System
    • Manual sump pump
    Starting And Charging
    • Battery disconnect switch
    • Jacket water heaters
    • 5 Amp Battery charger