C18 (60 Hz)

Design Criteria

The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient response.

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
  • Generator

  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • High Efficiency
  • 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.

    Single-Source Supplier

    Fully prototype tested with certified torsional vibration analysis available

    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

    Seismic Certification

  • Seismic Certification available.
  • Anchoring details are site specific, and are dependent on many factors such as generator set size, weight, and concrete strength.
  • IBC Certification requires that the anchoring system used is reviewed and approved by a Professional Engineer
  • Seismic Certification per Applicable Building Codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007, CBC 2010
  • Pre-approved by OSHPD and carries an OSP-0321-10 for use in healthcare projects in California
  • UL 2200 / CSA - Optional

  • UL 2200 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.
  • C18 (60 Hz) Standard Equipment

    Air Inlet System

    • Aftercooler core
    • Turbocharger

    Control System

    • EMCP4.2B
    • Standard breaker
    • 3 Pole
    • Right mounted power centre

    Cooling System

    • Radiator and cooling fan with belt guards
    • Thermostats and housing
    • Coolant level sensor
    • Coolant level sight gauge
    • Jacket water pump, gear driven
    • Coolant drain valve; terminated on edge of base
    • Cooling system filled with Caterpillar Extended Life Coolant

    Exhaust System

    • Exhaust manifold; dry

    Fuel System

    • Primary fuel filter w/integral water separator & secondary filter
    • Fuel cooler
    • Fuel priming pump
    • Flexible fuel lines
    • Engine fuel transfer pump

    Generator and Attachments

    • Brushless, self-excited 2/3 pitch, random wound
    • IP23 Protection
    • Insulation Class H and temperature rise
    • Power centre, IP22 bottom cable entry
    • Segregated low voltage wiring panel

    Mounting System

    • Narrow skid base
    • Generator mounting & Duct Plate
    • Anti-vibration mounts (Non-captive)

    Protection System

    • Overspeed
    • High coolant temperature shutdown
    • Low oil pressure shutdown
    • Low Coolant level shutdown


    • 24 Volt electric starting motor

    C18 (60 Hz) Optional Equipment

    Air Inlet System

    • Dual element air cleaner
    • Heavy duty canister air filters

    Control System

    • EMCP 4.4
    • Local annunciator
    • Annunciators box
    • Remote E-Stop button
    • Discrete I/O module
    • Volt free contact
    • Earth (Ground) fault relay

    Circuit Breakers

    • Single LSI motorised Circuit Breaker
    • Single LSI motorised circuit breaker
    • External paralleling
    • Auxiliary contacts
    • Neutral bar (208V)


    • Sound attenuated (SA)
    • Weather protective
    • Aluminium enclosure

    Cooling System

    • Coolant heater
    • Jacket water heater with pump
    • Stone guards

    Base / Fuel Tank

    • Audio & visual fuel alarm
    • Sub Base Dual Wall Fuel Tank: 660, 1000, 1900, 2200 gal

    Fuel System

    • Integral 8 hr tank base
    • Sub tank bases: 24 hr & 48 hr

    Generator and Attachments

    • PMG, AREP
    • Oversize
    • Coastal protection (CIP)
    • Space heater control

    Starting and Charging

    • Standard battery set
    • Oversize battery set


    • UL2200 Listed
    • CSA 22.2
    • Certification of Compliance � IBC
    • Seismic
    • Dual IBC & OSHPD


    • Tool set

    Select Units


    The C18 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 650 to 750 ekW at 60 Hz, each generator set has been designed to meet ISO 8528-5 transient response requirements and built to accept 100 percent rated load in one step. Our C18 generator sets range from low fuel consumption systems to EPA Stationary Emergency (Tier 2) certified. Seismic certification is also available for select models, so you can deliver power despite disturbances. Our integrated control system, including ATS and switchgear ensure a consistent power supply and connection to your fleet through on-site and remote monitoring options. We offer a wide range of EMCP 4 control panel options, with a simple screen display, consolidating all your management and diagnostics tools. The optional EMCP 4.4 provides multi generator set paralleling capability, allowing you to use multiple generator sets for increased power output and improved reliability. It's not just quality that matters but customization, choose from a broad range of accessories and bolt-on system expansion attachments. Discover our upgradeable packaging options to work with your spatial restrictions and environmental conditions. Our C18 generator sets are developed for such prerequisites, so that you can meet your specific power needs. Build in additional safety features with the UL 2200 and CSA certified package options.

    Generator Set Specifications

    • Minimum Rating 650 ekW 650 ekW
    • Maximum Rating 750 ekW 750 ekW
    • Voltage 208 to 600 Volts 208 to 600 Volts
    • Frequency 60 Hz 60 Hz
    • Speed 1800 rpm 1800 rpm

    Generator Set Configurations

    • Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Use Only (Tier 2 Nonroad Equivalent Emission Standards) U.S. EPA Certified for Stationary Emergency Use Only (Tier 2 Nonroad Equivalent Emission Standards)

    Engine Specifications

    • Engine Model C18 ATAACTM In-line 6, 4-cycle diesel C18 ATAACTM In-line 6, 4-cycle diesel
    • Displacement 1106.3 in³ 18.1 l
    • Fuel System Electronic unit injection Electronic unit injection
    • Aspiration Turbocharged Air to Air Aftercooled Turbocharged Air to Air Aftercooled
    • Governor Type Electronic Adem™A4 Electronic Adem™A4
    • Compression Ratio 14:01 14:01
    • Bore 5.71 in 145.0 mm
    • Stroke 7.2 in 183.0 mm

    Generator Set Dimensions

    • Length - Maximum 138.0 in 3512.0 mm
    • Width - Maximum 67.0 in 1690.0 mm
    • Height - Maximum 88.0 in 2222.0 mm
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