DG500 (60 Hz)

DG500 (60 Hz)

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

Frequency 60 Hz 60 Hz
Natural Gas Rating 500 ekW 500 ekW
Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Application U.S. EPA Certified for Stationary Emergency Application

Technicial Specifications

Generator Set Specifications
Frequency 60 Hz 60 Hz
Natural Gas Rating 500 ekW 500 ekW
Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Application U.S. EPA Certified for Stationary Emergency Application
RPM 1800 1800
Fuel Type Natural Gas Natural Gas
Voltage 208 - 600 VAC 208 - 600 VAC
Engine Specifications
Engine Model Cat® CG18 In-line 6, 4-cycle Natural Gas Cat® CG18 In-line 6, 4-cycle Natural Gas
Fuel System Gas mixer, Venturi Gas mixer, Venturi
Aspiration Turbocharged - Air-to-Air Aftercooled Turbocharged - Air-to-Air Aftercooled
Governor Type Electronic Electronic
Displacement 1106.3 in³ 18.1 l
Compression Ratio 10.5:1 10.5:1
Bore 5.7 in 145 mm
Stroke 7.2 in 183 mm
Generator Set Dimensions
Length 154 in 3581 mm
Width 73 in 1854 mm
Height 82 in 2083 mm
Weight 10721 lb 4863 kg

Advantages and Features

Emissions Strategy

  • Certified EPA Stationary Emergency
  • Complies with emission standards required for local permits

Cat CG18 Engine

  • Robust high speed block design provides prolonged life and lower owning operationg costs
  • Designed for maximum performance on low pressure pipeline natural gas
  • Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
  • One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection


  • Class H Insulation. Highest classification ensures alternator durability
    • Matched to the performance and output characteristics of Cat gas engines
    • Industry leading mechanical and electrical design
    • Industry leading motor starting capabilities
    • High Efficiency

EMCP 4.2B 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 43°C (110°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities

Full range of attachments

  • Wide range of bolt-on system expansion attachmentsr
  • Factory designed and tested
  • Flexible packaging options for easy and cost effective installation


  • Compact in-line design allows for improved packaging, resulting in the smallest genset footprint

Standard Equipment

  • Exhaust
    • Dry exhaust manifolds, insulated and shielded
  • Fuel System
    • Gas train with Zero Pressure regulator
    • ECU controlled shutdown solenoid
    • Airfuel Ratio Control, Venturi type Air-Gas mixer, throttle controlled valve
  • Controls
    • EMCP 4.2B
    • Integrated Voltage Regulator (IVR)
  • Telematics
    • PL444 Product link 4G LTE Telematics
  • Generator
    • Anti-condensation space heater
    • SR5
  • Governing
    • Electronic Governing
  • Starting/Charging
    • 24V starting motors
  • General
    • Paint - Caterpillar Yellow except rails are gloss black
    • Operation and maintenance manuals
    • Parts book

Optional Equipment

  • Air Inler
    • Air inlet adapters
  • Cooling
    • Inlet/Outlet connections
  • Exhaust
    • Flexible fitting
    • Elbow, Flange
    • Muffler and spark-arresting muffler with companion flanges
    • Exhaust expander
  • Telematics
    • PLG 601 & 641 Product link Telematics
  • Generator
    • Permanent Mangnet Excitation
    • Low voltage extension box
    • Generator air filter
    • European bus bar
    • Cable access box
  • Enclocures
    • Sound Attenuated and Weather Protective
  • Starting/Charging
    • Jacket water heater
    • Space Heaters
    • Charging alternator
    • Battery with cable and rack (shipped loose)
    • Battery charger
    • Oversized battery
  • General
    • Engine barring group
    • EEC D.O.I and other certifications
    • Crankcase explosion relief valve