Open Generator Set

DG400-2 (Single-phase)

Electric Power
Electric Power (205)


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

Engine Specifications

Engine Model
G21.9L spark-ignited
Fuel System
Natural Gas
Compression Ratio

Gas Generator Sets Specification

Compression Ratio

Generator Set Specifications

Fuel Type
Natural Gas
120/240 VAC
Emissions/Fuel Strategy
U.S. EPA Certified for Stationary Emergency Application
60 Hz
1800 rpm

Standard/Optional Features

Standard Equipment:

  • Cooling
    • Closed coolant recovery system
    • Factory-installed radiator
    • 50/50 Ethylene glycol antifreeze
  • Fuel
    • Primary and secondary fuel shut-off
    • Fuel pressure test po
    • Low fuel pressure switch
  • Generator
    • Permanent magnet excitation
    • Full load capacity alternator
    • Class H insulation material
  • Controls
    • EMCP 4.2 Series generator set controller
  • Mounting
    • Vibration isolaton (puck type)
  • Electric Starting And/or Prelube
    • Solenoid activated starter motor
    • Battery cables
    • Engine electrical system
  • Electric Power - Package Serial Number Prefix
    • Battery charging alternator

Optional Equipment:

  • Generator
    • Thermal magnetic or electronic trip MCCBs
    • Anti-condensation heater
    • Shunt trip and auxiliary contact breaker

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