DG250 GC (3 phase)

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Overview

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.

Generator Set Specifications

Units:
Frequency 60 Hz 60 Hz Less
Natural Gas Rating 250 eKW 250 eKW Less
Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Application U.S. EPA Certified for Stationary Emergency Application Less
Displacement 864.7 in³ 14.2 l Less
Speed 1800 rpm 1800 rpm Less

Engine Specifications

Fuel System Carbureter, Down Draft Carbureter, Down Draft Less
Aspiration Turbocharged - Aftercooled Turbocharged - Aftercooled Less
Compression Ratio 9.5:1 9.5:1 Less
Bore 5.31 in 135.0 mm Less
Stroke 6.5 in 165.0 mm Less

Generator Set Dimensions

Length 138.74 in 3524.1 mm Less
Width 57.6 in 1463.1 mm Less
Height 68.04 in 1728.3 mm Less
Weight 6364.0 lb 2887.0 kg Less

DG250 GC (3 phase) Standard Equipment

Cooling
  • Factory-installed radiator
  • Closed coolant recovery system
  • 50/50 Ethylene glycol antifreeze
  • Standard ambient temperatures up to 50°C (122°F)
  • Radiator and cooling fan complete with protective guards

Air Inlet
  • Single element air filter

Fuel
  • Low fuel pressure switch
  • Fuel pressure test po
  • Primary and secondary fuel shut-off
  • Dual lock off valves
  • NPT connection
  • Natural Gas or LP Vapor

Generator
  • Class H insulation material
  • Full load capacity alternator
  • Permanent magnet excitation
  • Full load capacity alternator
  • Permanent magnet excitation
  • Matched to the performance and output characteristics of Cat engines
  • Integrated Voltage Regulator
  • Class H insulation material
  • IP23 Protection

Exhaust
  • Exhaust outlet with 3” pipe

Controls
  • EMCP 4.2 Series generator set controller

Mounting
  • Vibration isolaton (puck type)
  • Rubber vibration isolators

Electric Starting and/or Prelube
  • Solenoid activated starter motor
  • Engine electrical system
  • Battery cables
  • Solenoid activated starter motor

Electric Power - Package Serial Number Prefix
  • Battery charging alternator

Governor
  • Electronic governor (non adjustable)

Control Panel
  • EMCP 4.2 Series generator set controller

Starting/Charging
  • 12 volt starting motor
  • Batteries with rack and cables

DG250 GC (3 phase) Optional Equipment

Starting/Charging
  • Battery heater
  • Battery charger – UL Listed 10 amp
  • Jacket water heater
  • Charging alternator

General
  • CSA Certification
  • Suitable for Use as Service Equipment (SUSE)
  • UL 2200 package
  • Enclosures: sound attenuated, weather protective
  • Automatic transfer switches (ATS)

Generator
  • Shunt trip and auxiliary contact breaker
  • Anti-condensation heater
  • Thermal magnetic or electronic trip MCCBs
  • Oversize and premium generators
  • Excitation: [ ] Permanent Magnet Excited (PM)
  • Anti-condensation heater

Engine

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

Generator

  • 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.

Application Centre

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organises it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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Why Choose Cat® Electric Power?

Caterpillar offers a comprehensive variety of electric power systems, customised to fit your needs. Our specialised systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

Learn More About Electric Power

EMCP 4 Generator Set Controls

Cat generator sets provide a complete factory-built solution with fully featured standard and advanced controls. Optional accessories enhance the capabilities of the genset package-mounted control system.

Learn More