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Overview

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 has been designed to meet ISO 8528-5 transient response requirements and to take on 100 percent rated load in one step. The C27 is certified as a low fuel consumption system as well as having a certificate for EPA Stationary Emergency (Tier 2). Seismic certification is also available for selected models, ensuring your generator sets are equipped for that unexpected disturbance. The integrated control system, including ATS and switchgear, ensures a consistent power supply and connection to your fleet through on-site and remote monitoring options. Our EMCP 4 control panel features a user-friendly interface and puts your management and diagnostics tools in one location. The EMCP 4.4 controller provides multi generator set paralleling capability, allowing you to use multiple generator sets for increased power output and improved reliability. It's not just quality that matters but customization, choose from a broad range of accessories and bolt-on system expansion attachments. Discover our upgradeable packaging options to work with your spatial restrictions and environmental conditions. Our C27 generator sets are developed for such prerequisites, so that you can meet your specific power needs. Build in additional safety features with the UL 2200 and CSA certified package options.

Generator Set Specifications

Units:
Minimum Rating 680 ekW 680 ekW Less
Maximum Rating 800 ekW 800 ekW Less
Emissions/Fuel Strategy Low Fuel Consumption, U.S. EPA Certified for Stationary Emergency Use Only (Tier 2 Nonroad Equivalent Emission Standards) Low Fuel Consumption, U.S. EPA Certified for Stationary Emergency Use Only (Tier 2 Nonroad Equivalent Emission Standards) Less
Voltage 208 to 600 Volts 208 to 600 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 rpm 1800 rpm Less
Duty Cycle Standby, Prime Standby, Prime Less

Engine Specifications

Engine Model C27 ATAAC, V-12, 4-Stroke, Water-Cooled Diesel C27 ATAAC, V-12, 4-Stroke, Water-Cooled Diesel Less
Bore 5.4 in 137.2 mm Less
Stroke 6.0 in 152.4 mm Less
Displacement 1649.47 in³ 27.03 l Less
Compression Ratio 16.5:1 16.5:1 Less
Aspiration TA TA Less
Fuel System MEUI MEUI Less
Governor Type Adem™A4 Adem™A4 Less

Generator Set Dimensions

Length - Maximum 184.0 in 4674.0 mm Less
Width - Maximum 67.8 in 1723.0 mm Less
Height - Maximum 85.1 in 2162.0 mm Less

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets other 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
  • Alternator

    SR5

  • 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 50°C (122°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities
  • Certifications

  • UL2200
  • IBC seismic certification
  • OSHPD pre-approval
  • EU Certification of Conformance (CE)
  • EEC Declaration of Conformity
  • 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
  • C27 (60 Hz) Standard Equipment

    Air Inlet
    • Air Cleaner; single element canister type with service indicator

    Control Panel
    • EMCP 4.2
    • Features:
    • Digital Indicators
    • Warning/shutdown Indicators
    • Programmable Protective Relaying Functions
    • Communications

    Cooling System
    • ATAAC
    • Radiator sized to 50 degrees C
    • Coolant drain line with valve terminated on edge of base
    • Fan and belt guards drive
    • Coolant level sensor
    • Caterpillar Extended Life Coolant

    Exhaust System
    • Exhaust Manifold - dry
    • 203mm (8in) ID round flanged outlet

    Fuel System
    • Primary fuel filter with integral water separator
    • Secondary fuel filter
    • Fuel cooler
    • Flexible fuel lines - installed
    • Electric fuel priming pump

    Generators and Attachments
    • SR5 Permanent Magnet (PM)
    • For EPA Stationary Emergency (EPA Tier 2 Emissions) configurations:
    • For Low BSFC configurations:
    • Integrated Voltage Regulator (IVR) includes
    • Bus bar connections:

    Lube System
    • Lubricating oil
    • Standard volume oil pan - 68 Ltr
    • Gear type lube oil pump
    • Integral lube oil cooler
    • Oil filter, filler and dipstick
    • Oil drain lines and valve
    • Fumes disposal - open crankcase ventilation routed to front of package

    Mounting System
    • Rails - engine/generator/radiator mounting
    • Rubber anti-vibration mounts - shipped loose

    Starting and Charging System
    • 24-volt electric starting motor
    • Charging Alternator 45A
    • Battery, rack and cables - shipped-loose
    • Battery disconnect switch

    General
    • Paint: Caterpillar Yellow with high gloss black rails & radiator
    • Right hand service
    • Flywheel and flywheel housing-SAE No. 0 and SAE No. 18
    • SAE Standard Rotation

    C27 (60 Hz) Optional Equipment

    Air Inlet System
    • Standard air cleaners
    • Dual element air cleaners
    • Heavy duty air cleaners

    Starting / Charging System
    • 10 Amp battery chargers
    • 20 Amp enclosure battery chargers
    • 24 Volt battery sets - Dry
    • 24 Volt electric start motors - Heavy duty
    • Jacket water heaters
    • Air starting motor with control and silencer
    • Space heater

    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
    • EMCP 4.3, EMCP4.4
    • Remote mounting harness
    • Remote mounted circuit breaker terminals
    • Remote mounted panel harness mounting kit
    • Auxiliary box options
    • Side extension box
    • Cable shroud - Top mounted
    • Cable shroud - Bottom mounted
    • Cat connect telematics
    • Installed DIO module
    • Remote DIO module
    • Annunciator modules
    • Remote annunciator modules
    • Modbus monitor local packages
    • Load share module
    • Vandal proof panel cover

    Cooling System
    • Standard radiator
    • High ambient radiator
    • Certified radiator
    • Extended life coolant
    • Radiator duct flange

    Enclosures
    • Special sound attenuated enclosure
    • Enclosure with lifting base or fuel tank
    • Enclosure fuel tank options
    • Enclosure louvers
    • Cold weather bundle
    • Enclosure lighting
    • AC distribution panel, lights and outlet
    • Panel bracket
    • Enclosure colors

    Exhaust System
    • Flanges
    • Guard and shield system
    • Elbows
    • Flexible fittings
    • Mufflers
    • Exhaust through the wall kit

    Generator and Attachments
    • 60 Hz standard generators
    • 60 Hz premium generators

    Lube System
    • Oil level regulator
    • Prelube pumps

    Mounting System
    • Puck style low efficiency isolators
    • Spring type vibration isolators
    • IBC vibration isolators
    • Mounting base type

    Power Connections
    • Neutral grounding connection
    • Center post busbar
    • Power connections - Right / Left / Rear
    • Cable entry - Right / Left / Rear

    Special Tests / Reports
    • IBC Seismic certifications
    • OSHPD Seismic certifications
    • Special CSA test cerification
    • PGS test report @ 1.0 power factor
    • PGS test report @ 0.8 power factor
    • Generator test report
    • Standard engine test
    • Torsional vibration analysis report

    General
    • Special paint
    • US aid emblem
    • SGS Inspection
    • Miscellaneous inspection

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    Application Center

    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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