DG400-2 (Three phase)

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

Open Generator Set
Enclosure

Features

  • Engine

    Engine

    • Four-stroke-cycle gas engine combines consistent performance and excellent fuel economy with minimum weight
  • Generator

    Generator

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

    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
  • Design Criteria

    Design Criteria

    • The generator set facilitates compliance with NFPA 110 and meets ISO 8528-5 requirements for transient response
    • Cooling system designed to operate in 50˚C/122˚F ambient temperatures with an air flow restriction of 0.5 in. water
  • UL 2200 / CSA - Optional

    UL 2200 / CSA - Optional

    • UL 2200 Listed packages
    • CSA Certified
    • Certain restrictions may apply
    • Consult with your Cat® Dealer
  • Worldwide Product Support

    Worldwide 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

Specifications

Units for specifications

Generator Set Specifications

Frequency 60 Hz
Natural Gas Rating 400 ekW
Emissions/Fuel Strategy U.S. EPA Certified for Non-Emergency Application
Displacement 1336.42 in 21.9 l
Fuel Type Natural Gas
RPM 1800 rpm
Voltage 120/208, 120/240, 277/480, 346/600 VAC
Compression Ratio 10.0:1

Engine Specifications

Engine Model G21.9L spark-ignited
Fuel System Carburetor, Down Draft
Aspiration Turbocharged - Aftercooled
Governor Type Electronic
Bore 5.03 in 21.9 mm
Stroke 5.6 in 152.4 mm
Compression Ratio 10.0:1

Generator Set Dimensions

Length 154.4 in 3923 mm
Width 71 in 1803 mm
Height 67 in 1702 mm
Weight 8429 lb 3823 kg

Standard Equipment

Cooling

  • Closed coolant recovery system
  • Factory-installed radiator
  • 50/50 Ethylene glycol antifreeze

Fuel

  • Low fuel pressure switch
  • Primary and secondary fuel shut-off
  • Fuel pressure test po

Generator

  • Class H insulation material
  • Full load capacity alternator
  • Permanent magnet excitation

Controls

  • EMCP 4.2 Series generator set controller

Mounting

  • Vibration isolaton (puck type)

Electric Starting and/or Prelube

  • Engine electrical system
  • Solenoid activated starter motor
  • Battery cables

Electric Power - Package Serial Number Prefix

  • Battery charging alternator

Optional Equipment

Generator

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

Documents