C27 Generator Set

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.

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Minimum Rating 635 ekW
Maximum Rating 800 ekW
Emissions/Fuel Strategy Low Fuel, Tier 2 Nonroad Equivalent
Voltage 208 to 600 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby, Prime
Engine Model C27 ATAAC, V-12, 4-Stroke, Water-Cooled Diesel
Bore 5.4 in
Stroke 6 in
Displacement 1649.47 in³
Compression Ratio 16.1:1
Aspiration TA
Fuel System MEUI
Governor Type Adem™A4
Length - Maximum 184 in
Width - Maximum 67.8 in
Height - Maximum 85.1 in
Air Inlet
  • Air Cleaner; single element canister type with service indicator
Control Panel
  • EMCP 4.2B
  • Digital Indicators
  • Warning/shutdown Indicators
  • Programmable Protective Relaying Functions
  • Communications
  • Features:
Cooling System
  • Coolant level sensor
  • Coolant drain line with valve terminated on edge of base
  • Caterpillar Extended Life Coolant
  • Radiator sized to 50 degrees C
  • Fan and belt guards drive
Exhaust System
  • 203mm (8in) ID round flanged outlet
  • Exhaust Manifold - dry
Fuel System
  • Primary fuel filter with integral water separator
  • Electric fuel priming pump
  • Fuel cooler
  • Flexible fuel lines - installed
  • Secondary fuel filter
Generators and Attachments
  • Integrated Voltage Regulator (IVR) includes
  • For EPA Stationary Emergency (EPA Tier 2 Emissions) configurations:
  • Bus bar connections:
  • SR5 Permanent Magnet (PM)
  • For Low BSFC configurations:
Lube System
  • Standard volume oil pan - 68 Ltr
  • Lubricating oil
  • Oil drain lines and valve
  • Gear type lube oil pump
  • Oil filter, filler and dipstick
  • Fumes disposal - open crankcase ventilation routed to front of package
  • Integral lube oil cooler
Mounting System
  • Rubber anti-vibration mounts - shipped loose
  • Rails - engine/generator/radiator mounting
Starting and Charging System
  • 24-volt electric starting motor
  • Battery, rack and cables - shipped-loose
  • Battery disconnect switch
  • Charging Alternator 45A
  • Paint: Caterpillar Yellow with high gloss black rails & radiator
  • SAE Standard Rotation
  • Right hand service
  • Flywheel and flywheel housing-SAE No. 0 and SAE No. 18
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 sets - 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 modules
  • 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 busbar
  • 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 cerification
  • Standard engine test
  • Miscellaneous inspection
  • US aid emblem
  • Special paint
  • SGS Inspection