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Gas generator sets

DG400 (3-Phase)

The Cat® spark-ignited lean burn generator for stationary standby, demand response and limited time power (LTP) applications offer reliable power with best in class fuel efficiency, lower footprint and cleaner exhausts. The abilitity to operate even at very low fuel inlet pressures makes it best suited for a range of applications

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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

Generator

  • 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

CAT<sup class="cf-reg">®</sup> ECS 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

Footprint

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

Superior Motor Starting Capability @30% Voltage Dip

Able to start large connected motors loads during a power outage

EPA Certified

Complies with emission standards required for local permits

Alternator Features Class H Insulation

Highest classification ensures alternator durability

Generator Set Specifications
Frequency60 Hz
Emissions/Fuel StrategyU.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications
RPM1800
Voltage208 - 600 VAC
Natural Gas Rating400 ekW
Fuel TypeNatural Gas
Engine Specifications
Engine ModelCat® CG18 In-line 6, 4-cycle Natural Gas
Fuel SystemGas mixer, Venturi
AspirationTurbocharged - Air-to-Air Aftercooled
Governor TypeElectronic
Displacement1106.3 in³
Compression Ratio10.5:1
Bore5.7 in
Stroke7.2 in
Generator Set Dimensions
Length154 in
Width73 in
Height82 in
Weight10721 lb

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
  • DG400 Spec Sheet
    application/pdf
  • Electric Power Rating Guide
    application/pdf
  • CG18 Enclosures
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations