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C18 Generator Set

  • Overview
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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

EMCP 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 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

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

Generator Set Specifications
Minimum Rating 550 kVA
Maximum Rating 715 kVA
Emissions/Fuel Strategy Low Fuel, China Nonroad III Emis Stds
Voltage 380 to 415 Volts
Frequency 50 Hz
Speed 1500 rpm
Duty Cycle Standby, Prime
Engine Specifications
Engine Model C18 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Bore 145 mm (5.71 in)
Stroke 183 mm (7.2 in)
Displacement 18.13 l (1106.36 inu00b3)
Compression Ratio 14.5:1
Aspiration Air to Air Aftercooled
Fuel System Electronic unit injection
Governor Type Ademu00e2u201eu00a2A4
Generator Set Dimensions
Length - Maximum 4135 mm (162.4 in)
Width - Maximum 1989 mm (78.3 in)
Height - Maximum 1906 mm (75 in)

Standard Equipment

  • Air Inlet System
    • Turbocharger
    • Light duty air cleaner
    • Aftercooler core
  • Air Inlet
    • Air Cleaner
  • Control System
    • EMCP 4.2
  • Exhaust
    • Exhaust flange outlet
  • Cooling
    • Coolant drain line with valve
    • Caterpillar extended life coolant
    • Fan drive, battery charging alternator drive
    • Radiator and cooling fan with guard
  • Exhaust System
    • Stainless steel exhaust flex gaskets, raincap and SAE exhaust
      flange for customer use; shipped loose
  • Fuel
    • Secondary fuel filter
    • Fuel priming pump
    • Primary fuel filter with integral water separator
  • Fuel System
    • Standard 8 hour open set fuel tank
  • Generator
    • IP23 Protection
    • Load adjustment module provides engine relief upon load impact and improves load acceptance and recovery time
    • Matched to the performance and output characteristics of Cat engines
  • Generator and Attachments
    • Segregated low voltage (AC/DC) wiring panel
    • Integrated Voltage Regulator
    • A frame generator – IP21 protection
    • Integrated Voltage Regulator
    • Mandatory Option circuit breaker, IEC, 3 pole, mounted in power centre
    • Power center, IP22
    • Matched to the performance and output characteristics of Cat engines
  • Power Termination
    • Bus Bar
  • Governing System
    • Cat Electronic Governor (ADEM A4)
  • Control Panel
    • EMCP 4 Genset Controller
  • Lube System
    • Lubricating oil
    • Oil drain valves
  • Mounting
    • Rubber vibration isolators
  • 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
    • 24 Volt battery with rack and cables
  • General
    • Engine and alternator pre-paint, Caterpillar yellow

Optional Equipment

  • Exhaust
    • Industrial, Residential, Critical Mufflers
  • Air Inlet System
    • Dual element air cleaner
    • Single element air cleaner
  • Circuit Breakers
    • 3 Pole (IEC-100% rated) circuit breakers – Motorised
    • 4 Pole (IEC-100% rated) circuit breakers – Motorised
    • Circuit breaker (IEC) auxiliary contacts
    • Pad-lockable circuit breaker device
    • 3 Pole (IEC-100% rated) circuit breakers – Package mounted
    • 4 Pole (IEC-100% rated) circuit breakers – Package mounted
    • Power terminal strip
    • Shunt trip for IEC breaker
  • Generator
    • Anti-condensation heater
    • Excitation: [ ] Permanent Magnet Excited (PM) [ ] Internally Excited (IE)
    • Oversize and premium generators
  • Power Termination
    • Circuit breakers, IEC compliant
    • Circuit breakers, UL listed
  • Control Panels
    • Local & remote annunciator modules
    • Load share module
    • Remote monitoring software
    • EMCP (4.2) (4.3) (4.4)
    • Digital I/O module
  • Control System
    • Oil temperature displays
    • EMCP 4.4
    • Volt free contact
    • 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
    • Local alarm modules
    • Remote annunciator modules
    • Local alarm horn
  • Cooling System
    • Low coolant temperature alarm
    • Radiator duct flange
  • Starting/Charging
    • Oversize batteries
    • Jacket water heater
    • Battery chargers
    • Heavy-duty starting system
    • Charging alternator
  • Enclosures
    • Sound attenuated enclosures
  • Exhaust System
    • Manifold and Turbocharger guard
    • Engine mounted muffler
    • 8 and 10 inch elbow kits
    • 8 and 10 inch GP flanges
    • 10, 25 and 35 end in / end out Mufflers
  • Fuel System
    • Integral – Duel wall fuel tank base
    • Manual fuel transfer pump
    • Fuel transfer system
  • Generator and Attachments
    • LC frame generator
    • Permanent magnet excitation
    • LC frame oversize generators
    • Space heaters
    • A frame oversize generator
    • A frame CIP generator
    • Ingress protection
    • LC frame CIP generator
  • General
    • Single or dual wall integral fuel tanks
    • UL 2200 package
    • Enclosures: sound attenuated, weather protective
    • EU Certificate of Conformance (CE)
    • Integral & sub-base UL listed dual wall fuel tanks
    • Narrow, Wide or Skid Base
    • The following options are based on regional and product configuration:
    • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
    • EEC Declaration of Conformity
    • CSA Certification
    • Sound attenuated, weather protective or high ambient weather protective enclosure
    • Automatic transfer switches (ATS)
    • Single or dual wall sub-base fuel tanks
  • Lube System
    • Manual sump pump
  • Starting and Charging
    • Jacket water heaters
    • 5 Amp battery charger
    • Battery disconnect switch

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