DE550S GC (60 Hz) Generator Set

DE550S GC (60 Hz) Generator Set

360° Exterior View

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

PDF Print Share

Generator Set Specifications

Maximum Rating
550 ekW
Minimum Rating
550 ekW
Emissions/Fuel Strategy
Non Regulated
220 to 480 Volts
60 Hz
1800 RPM
Duty Cycle

Engine Specifications

Engine Model
C15 In-line 6, 4-cycle diesel
Compression Ratio
Turbocharged Air-to-Air Aftercooled
Fuel System
Governor Type

Generator Set Dimensions

Length - Maximum
Width - Maximum
Height - Maximum
Dry Weight - Genset (maximum)

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

GCCP1.2 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

Worldwide 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

Standard Equipment:

Optional Equipment:

    Control Panel
    • Speed and Voltage adjust potentiometers
    • PLG 4G/3G/Ethernet
    • Annunciator
    • Emergency E-Stop
    • Industrial, residential, critical mufflers
    • Cat GC enclosure
    • Oversize and premium generators
    • Anti-condensation heater
    • Excitation: [ ] Permanent magnet excitation (PMG) Excited (PM) [ ] Internally Excited (IE)
    Electrical Options
    • 4 Pole Circuit breaker
    • Auxiliary contacts
    • Padlockable circuit breaker
    • Battery charger
    • Wet battery
    Power Termination
    • Circuit breakers, UL listed
    • Circuit breakers, IEC compliant
    • Space heater
    • AVR
    Air Inlet System
    • Single stage air filter
    • Dual element air filter
    • Heavy duty starting system
    • Battery chargers
    • Jacket water heater
    • Oversize batteries
    • Charging alternator
    • EU Certificate of Conformance (CE)
    • EAC Certification
    Extended Service Coverage
    • 3, 4, 5 and 10 Years
    • The following options are based on regional and product configuration:
    • UL 2200 package
    • Integral & sub-base UL listed dual wall fuel tanks
    • Sound attenuated, weather protective or high ambient weather protective enclosure
    • EU Certificate of Conformance (CE)
    • EEC Declaration of Conformity
    • Single or dual wall integral fuel tanks
    • Single or dual wall sub-base fuel tanks
    • CSA Certification
    • Automatic transfer switches (ATS)
    • Narrow, wide or skid base
    • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
    • High ambient sound attenuated enclosures
    Exhaust System
    • Industrial silencer
    • 10 dBA Attenuation silencer
    • 6 and 8 inch elbow kit
    • Flexible exhaust fittings
    • Manifold and turbocharger guards
    • End in/end out mufflers - 10, 25 and 35 dBA attenuation
    • Engine mounted muffler
    • 6 and 8 inch flange GP
    Fuel System
    • Dual wall 8 hour fuel tank
    • Single wall 8 hour fuel tank with spill containment
    • Low fuel level shutdown
    • Low and high fuel level alarms
    • Fuel transfer system controls
    • Dual wall fuel tank base
    • Manual fuel transfer pump
    Generator And Attachments
    • Ingress protection
    • CIP A Frame generator
    • Oversize A Frame generator
    • Permanent magnet excitation (PMG) generator
    • Space heaters
    • LC frame CIP generator
    • LC frame generator
    • Oversize LC frame generator
    Lube System
    • Manual sump pump
    Mounting System
    • Narrow skid base - replaces standard fuel tank base
    Special Test / Reports
    • PGS Test report @ 1.0 power factor
    • PGS Test report @ 0.8 power factor
    Starting / Charging System
    • Battery disconnect switch
    • Jacket water heater
    • 5 Amp single Battery charger