DG350 GC (3 phase)

DG350-2 (Single-phase)

The Cat® spark-ignited generator product line for stationary applications feature permanent magnet excitation, amortisseur winding, skewed stator, voltage adjustment through the EMCP controller, Class H winding insulation and 2/3 pitch incorporated.



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


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

Cat EMCP Control Panel

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

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 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.

Worldwide Product Support

Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries.

Standard Equipment

  • Closed coolant recovery system
  • 50/50 Ethylene glycol antifreeze
  • Factory-installed radiator
  • Radiator and cooling fan complete with protective guards
  • Standard ambient temperatures up to 50°C (122°F)
Air Inlet
  • Single element air filter
  • Primary and secondary fuel shut-off
  • Fuel pressure test po
  • Low fuel pressure switch
  • Dual lock off valves
  • NPT connection
  • Natural Gas or LP Vapor
  • Exhaust outlet with 3” pipe
  • Full load capacity alternator
  • Class H insulation material
  • Permanent magnet excitation
  • Permanent magnet excitation
  • Integrated Voltage Regulator
  • Class H insulation material
  • IP23 Protection
  • Matched to the performance and output characteristics of Cat engines
  • Full load capacity alternator
  • EMCP 4.2 Series generator set controller
  • Vibration isolaton (puck type)
  • Rubber vibration isolators
Electric Starting and/or Prelube
  • Engine electrical system
  • Battery cables
  • Solenoid activated starter motor
  • Solenoid activated starter motor
Electric Power - Package Serial Number Prefix
  • Battery charging alternator
  • Electronic governor (non adjustable)
Control Panel
  • EMCP 4.2 Series generator set controller
  • 12 volt starting motor
  • Batteries with rack and cables

Additional information

Offering Type

Generator Set Specifications - Frequency

60 Hz

Generator Set Specifications - Natural Gas Rating

350 eKW

Generator Set Specifications - Emissions/Fuel Strategy

U.S. EPA Certified for Non-Emergency Application

Engine Specifications - Engine Model

G21.9L Spark-Ignited

Generator Set Specifications - Fuel Type

Natural Gas

Engine Specifications - Compression Ratio


Engine Specifications - Fuel System

Carburetor, Down Draft

Generator Set Specifications - Displacement

21.9 l ( 1336.42 in³ )

Engine Specifications - Governor Type


Generator Set Specifications - Speed

1800 rpm

Engine Specifications - Aspiration

Turbocharged – Aftercooled

Engine Specifications - Bore

128 mm ( 5.03 in )

Engine Specifications - Stroke

142 mm ( 5.6 in )

Generator Set Dimensions - Length

3923 mm ( 154.4 in )

Generator Set Dimensions - Width

1803 mm ( 71 in )

Generator Set Dimensions - Height

1716 mm ( 67.6 in )

Generator Set Dimensions - Weight

3753 kg ( 8274 lb )

Select Up To 3 Models To Compare