C6.6 (60 Hz)

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Producing reliable power from 114 ekW to 158 ekW at 60Hz, our C6.6 ACERT™ diesel generator sets are engineered for your standby and prime applications. All are tested to maximum load before they leave any one of our ISO 9001 certified facilities. And we've incorporated our common rail fuel system for a fuel-efficient generator set, meeting EPA Stationary Emergency (Tier 3) emissions limits. Seismic certification is also available so disturbances never disrupt your power. Our integrated control system, including Cat® UPS, ATS and switchgear, ensures a consistent power supply and connection to your fleet through on-site and remote monitoring options. The EMCP 4.2 control panel, with a user-friendly interface, puts our advanced management and diagnostic tools in one. We believe you should have a say in how you supply power — choose from a broad range of accessories and bolt-on system expansion attachments. Find flexible packaging options to work with your spatial requirements and climate. Customize your C6.6 generator sets to meet your critical power needs.

Generator Set Specifications

  • Minimum Rating 114 ekW 114 ekW
  • Maximum Rating 175 ekW 175 ekW
  • Voltage 208-600 Volts 208-600 Volts
  • Frequency 60 Hz 60 Hz
  • Speed 1800 RPM 1800 RPM

Generator Set Configurations

  • Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Use Only (Tier 3 Nonroad Equivalent Emission Standards) U.S. EPA Certified for Stationary Emergency Use Only (Tier 3 Nonroad Equivalent Emission Standards)

Engine Specifications

  • Engine Model C6.6, In-line 6, 4-cycle diesel C6.6, In-line 6, 4-cycle diesel
  • Compression Ratio 16.2:1 16.2:1
  • Governor Type Adem™A4 Adem™A4
  • Fuel System Electronic Electronic
  • Bore 4.13 in 105.0 mm
  • Displacement 402.8 in³ 6.6 l
  • Stroke 5.0 in 127.0 mm

C6.6 (60 Hz) Standard Equipment

Air Inlet

  • Air Cleaner


  • Package mounted radiator


  • Exhaust flange outlet


  • Primary fuel filter with integral water separator
  • Secondary fuel filter
  • Fuel priming pump


  • Matched to the performance and output characteristics of Cat engines
  • Load adjustment module provides engine relief upon load impact and improves load acceptance and recovery time
  • IP23 Protection

Power Termination

  • Bus Bar

Control Panel

  • EMCP 4 Genset Controller


  • Rubber vibration isolators


  • 24 volt starting motor
  • Batteries


  • Paint - Caterpillar Yellow except rails and radiators gloss black

C6.6 (60 Hz) Optional Equipment


  • Industrial, Residential, Critical Mufflers


  • Excitation: [ ] Permanent Magnet Excited (PM) [ ] Internally Excited (IE)
  • Anti-condensation heater
  • Oversize and premium generators

Power Termination

  • Circuit breakers, UL listed
  • Circuit breakers, IEC compliant

Control Panels

  • EMCP (4.2) (4.3) (4.4)
  • Local & remote annunciator modules
  • Load share module
  • Digital I/O module
  • Remote monitoring software


  • Battery chargers
  • Oversize batteries
  • Jacket water heater
  • Heavy-duty starting system
  • Charging alternator


  • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
  • UL 2200 package
  • EU Certificate of Conformance (CE)
  • CSA Certification
  • EEC Declaration of Conformity
  • Narrow, Wide or Skid Base
  • Sound attenuated, weather protective or high ambient weather protective enclosure
  • Single or dual wall integral fuel tanks
  • Single or dual wall sub-base fuel tanks
  • Integral & sub-base fuel tanks
  • Automatic transfer switches (ATS)

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