The DE400 GC diesel generator sets have been developed for your standby applications. Producing reliable power of 400 kVA at 50 Hz, our C9.3 diesel-powered DE400 GC generator set is designed to ISO 8528-5 transient response requirements

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Generator Set Specifications
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Minimum Rating 400 kVA 400 kVA
Maximum Rating 400 kVA 400 kVA
Emissions/Fuel Strategy Non-Certified Emissions Non-Certified Emissions
Voltage 380 to 415 Volts 380 to 415 Volts
Frequency 50 Hz 50 Hz
Speed 1500 rpm 1500 rpm
Duty Cycle Standby Standby

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

Cat Diesel Engine

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight

A-Frame Alternator

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

GCCP 1.1 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 55°C (131°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities


  • CE Certification Available
  • CIS Certification Available

One Safe Source

  • Components used in the generator set are selected based on seamless design integration to provide the optimum performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

World Wide 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

DE400 GC Standard Equipment

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  • C9.3B, Inline 6 Cylinder, 4 Stroke Diesel

DE400 GC Optional Equipment

Air, Cooling & Exhaust
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  • 6" Elbow Kit
  • Dual Element Air Filter
  • 5-6" Exhaust Adapter
  • Canopy Silencer
  • 5" Elbow Kit
  • 6" Flange Kit
  • 6" Muffler - 25 dBA Attenuation
  • 5" Muffler - 10dBA Attenuation
  • Single Stage Air Filter
  • No Muffler