Producing reliable power from 120 to 175 ekW at 60 Hz, our C7.1 diesel generator sets designed to ISO 8528-5 transient response requirement. All C7.1 generator sets are available with a choice of emissions levels.

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Generator Set Specifications
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Minimum Rating 120 ekW 120 ekW
Maximum Rating 175 ekW 175 ekW
Emissions/Fuel Strategy Non Regulated Non Regulated
Voltage 208 to 480 Volts 208 to 480 Volts
Frequency 60 Hz 60 Hz
Speed 1800 rpm 1800 rpm
Duty Cycle Standby, Prime Standby, Prime

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

R-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

EMCP 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


Fully prototype tested with certified torsional vibration analysis 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

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

C7.1 (60 Hz) Standard Equipment

Air Inlet System
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  • Air Cleaner; light duty with disposable element
  • Air Cleaner; light duty with disposable element

C7.1 (60 Hz) Optional Equipment

Alternator System
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  • Permanent magnet
  • 3 Phase sensing
  • Optional LC frame alternators
  • Alternator removal
  • Quatrature droop king
  • R frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
  • Anti-condensation heater
  • Optional LC frame alternator with coastal insulation protection