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Gas generator sets

DG350 (3-Phase)

The Cat® DG350 gas generator set delivers 350 ekW for stationary emergency, non-emergency and demand response applications. Its in-line six-engine configuration and lean-burn technology combine efficient operation with a compact footprint and greater installation flexibility.

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Efficient lean-burn operation

  • Operating with a lean-air fuel ratio promotes fuel efficiency, while lower exhaust temperatures contribute to longer component life.

Service-friendly layout

  • A compact engine configuration provides more room inside the enclosure, making components easier to access for service.

No aftertreatment required

  • The CG18 engine meets non-emergency emissions requirements without aftertreatment, eliminating related maintenance and replacement costs.

Durable C18-based platform

  • Approximately 90% of the CG18 engine hardware is shared with the proven C18 diesel platform for long-term durability.

Low-pressure gas inlet

  • The natural gas inlet with low pressure capability adds flexibility when integrating the generator set.

Lower your owning and operating costs

Simplify service and maintenance

Reduce emissions without aftertreatment

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 Rating350 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

  • 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

  • Operation and maintenance manuals
  • Paint - Caterpillar Yellow except rails are gloss black
  • Operation and maintenance manuals
  • Parts book
  • DG350 Spec Sheet
    application/pdf
  • Electric Power Rating Guide
    application/pdf
  • CG18 Enclosures
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations