C27 Generator Set

C27 Generator Set

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The C27 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 680 to 800 ekW at 60 Hz, each generator set ...
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Generator Set Specifications

Maximum Rating
800 ekW
Minimum Rating
635 ekW
Emissions/Fuel Strategy
Low Fuel, Tier 2 Nonroad Equivalent
208 to 600 Volts
60 Hz
1800 rpm
Duty Cycle
Standby, Prime

Engine Specifications

Engine Model
C27 ATAAC, V-12, 4-Stroke, Water-Cooled Diesel
Compression Ratio
Fuel System
Governor Type

Generator Set Dimensions

Length - Maximum
Width - Maximum
Height - 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

SR5 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

EMCP 4 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


  • UL 2200
  • CSA
  • IBC seismic certification
  • OSHPD pre-approval

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:

    Air Inlet System
    • Standard air cleaners
    • Heavy duty air cleaners
    • Dual element air cleaners
    Starting / Charging System
    • 20 Amp enclosure Battery chargers
    • 10 Amp Battery chargers
    • 24 Volt battery set - Dry
    • Air starting motor with control and silencer
    • Space heater
    • 24 Volt electric start motors - Heavy duty
    • Jacket water heaters
    Circuit Breakers
    • 400, 800, 1200, 1600, 2000, 2500, 3000 Amp, 3 pole, UL-100% rated Circuit breakers
    • 2000 Amp, 3 pole, IEC rated Circuit breakers
    • 800 Amp, 4 pole, IEC rated Circuit breakers
    Control Panels
    • Cable shroud - Bottom mounted
    • Cable shroud - Top mounted
    • EMCP 4.3, EMCP4.4
    • Side extension box
    • Remote annunciator module
    • Auxiliary box options
    • Remote mounted panel harness mounting kit
    • Remote mounted circuit breaker terminals
    • Modbus monitor local packages
    • Remote DIO module
    • Cat connect telematics
    • Load share module
    • Vandal proof panel cover
    • Installed DIO module
    • Remote mounting harness
    • Annunciator modules
    Cooling System
    • Radiator duct flange
    • High ambient radiator
    • Extended life coolant
    • Certified radiator
    • Standard radiator
    • Enclosure louvers
    • Enclosure with lifting base or fuel tank
    • Panel bracket
    • AC distribution panel, lights and outlet
    • Enclosure lighting
    • Enclosure colors
    • Special Sound attenuated enclosure
    • Enclosure fuel tank options
    • Cold weather bundle
    Exhaust System
    • Mufflers
    • Elbows
    • Flanges
    • Exhaust through the wall kit
    • Flexible fittings
    • Guard and shield system
    Generator And Attachments
    • 60 Hz standard generators
    • 60 Hz premium generators
    Lube System
    • Prelube pumps
    • Oil level regulator
    Mounting System
    • Mounting base type
    • IBC vibration isolators
    • Puck style low efficiency isolators
    • Spring type vibration isolators
    Power Connections
    • Center post busbars
    • Cable entry - right/left/rear
    • Neutral grounding connection
    • Power connections - Right / Left / Rear
    Special Tests / Reports
    • Torsional vibration analysis report
    • Generator test report
    • IBC seismic Certifications
    • OSHPD seismic Certifications
    • PGS Test report @ 1.0 power factor
    • PGS Test report @ 0.8 power factor
    • Special CSA test Certification
    • Standard engine test
    • Miscellaneous inspection
    • US aid emblem
    • Special paint
    • SGS Inspection