DG400 (3-Phase)

  • Exterior View
  • Interior View

DG400 (3-Phase)

Natural Gas Rating 400 ekW
Fuel Type Natural Gas
Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications
RPM 1,800
Frequency 60 Hz
Voltage 208 - 600 VAC
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Generator Set Specifications
Natural Gas Rating 400 ekW
Fuel Type Natural Gas
Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications
RPM 1,800
Frequency 60 Hz
Voltage 208 - 600 VAC
Engine Specifications
Engine Model Cat® CG18 In-line 6, 4-cycle Natural Gas
Fuel System Gas mixer, Venturi
Aspiration Turbocharged - Air-to-Air Aftercooled
Governor Type Electronic
Displacement 1,106 in³
Compression Ratio 10.5:1
Bore 6 in
Stroke 7 in
Generator Set Dimensions
Length 154 in
Width 73 in
Height 82 in
Weight 10,721 lb

High power density

The in-line six-engine CG18 delivers greater output from a smaller engine configuration, allowing more power to fit within a smaller space.

Efficient CG18 engine

Lean-burn operation promotes fuel efficiency, while robust high-speed block construction contributes to prolonged engine life.

Flexible Cat® ECS controls

Expansion modules and customizable programming configure generator operation around individual installation needs.

Strong motor-starting ability

Large connected motors can start during an outage, helping accommodate demanding electrical equipment.

Durable alternator insulation

Class H insulation provides a high level of protection to promote alternator durability over its service life.

  • 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
    • CAT® ECS 100
    • 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
  • Air Inlet
    • Air inlet adapters
  • Control Panel
    • CAT® ECS 200
  • Cooling
    • Inlet/Outlet connections
  • Exhaust
    • Flexible fitting
    • Elbow, Flange
    • Muffler and spark-arresting muffler with companion flanges
    • Exhaust expander
  • Generator
    • Permanent Mangnet Excitation
    • Low voltage extension box
    • 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
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