C7.1 (60 HZ) | 120-175 kW Diesel Generator

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Maximum Rating175 ekW
Minimum Rating120 ekW
Emissions/Fuel StrategyNon Regulated
Voltage208 to 480 Volts
Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.


Maximum Rating175 ekW
Minimum Rating120 ekW
Emissions/Fuel StrategyNon Regulated
Voltage208 to 480 Volts
Frequency60 Hz
Speed1800 rpm
Duty CycleStandby, Prime
Engine ModelC7.1 I-6, 4-Cycle Diesel
Bore4.13 in (105 mm)
Stroke5.31 in (135 mm)
Displacement427.8 in³ (7.01 B)
Compression Ratio16.5:1
AspirationTurbocharged, Air to Air Aftercooled
Fuel SystemCommon Rail
Governor TypeADEM™A4
Length - Maximum98.4 in (2500 mm)
Width - Maximum52 in (1320 mm)
Height - Maximum64 in (1626 mm)

Benefits and Features

  • 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

  • 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

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

  • 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
  • Image may not be a representative of actual product

  • 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

  • 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

  • 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

  • Air cleaner; light duty with disposable element
  • Radiator and cooling fan with guards
  • Coolant drain line with valves
  • Caterpillar extended life coolant
  • Fan drive, battery charging alternator drive
  • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose
  • Base, formed steel with single wall integral 8-hour fuel tank
  • Standard open set fuel tank/base supplied
  • Lubricating oil
  • Oil drain line with valve
  • Segregated low voltage (AC/DC) wiring panel
  • Tower panel, IP22, bottom cable entry
  • 12 Leads
  • Voltage regulator (single phase sensing)
  • IP23 Protection
  • Circuit breaker, IEC, 3 pole, mounted in tower panel
  • Captive linear vibration isolators between base and engine-generator
  • Termination points for coolant and lube oil drain lines
  • Includes lifting provision and drag points
  • Radiator and cooling fan complete with protective guards
  • Flexible fuel lines to base NPT connections
  • Drip proof generator air intake (NEMA 2, IP23)
  • Class H insulation
  • Standard ambient temperatures up to 50°C (122°F)
  • 24V battery with rack and cables
  • Mechanical and electrical governing system - model dependent
  • Engine and alternator pre-paint, Caterpillar yellow

Optional Equipment

  • R Frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
  • Quatrature droop king
  • Alternator removal
  • Anti-condensation heater
  • 3 Phase sensing
  • Optional LC Frame alternator with coastal insulation protection
  • Permanent magnet excitation (PMG)
  • Padlockable breaker device
  • 4 Pole 250A, 400A and 630A Circuit breakers
  • Control panel heater
  • Static battery charger
  • Volt free contacts for common alarm
  • Volt free contacts for generator set running
  • EMCP 4.2
  • Speed adjust potentiometer
  • Emergency stop with key
  • Battery charger
  • Volt free contacts
  • Earth leakage (2 wire only)
  • Control panel heater
  • Earth fault (2 wire only)
  • Panel mounted audible alarm
  • Speed adjust contacts
  • Overload shutdown via breaker
  • Low coolant temperature
  • Low coolant level shutdown
  • Coolant heater
  • Sound attenuated level 2 enclosure
  • Rental options (CAE only) - Single point lift
  • Sound attenuated levels 1 and 2 enclosures
  • Rental options (CAE only) - CEE form sockets for enclosure
  • Rental options (CAE only) - Rental pack
  • Rental options (CAE only) - Socket blanking plate
  • Upgrade to STD set for CE
  • Battery removal
  • Residential silencer
  • Industrial silencer removal
  • Silencer installation kit
  • Electronic governor
  • PGS Test report @ 0.8 power factor
  • PGS Test report @ 1.0 power factor
  • Stone guards/radiator trans flange
  • Open set narrow tankbase
  • Compact skidbase for open sets
  • DEFRA bunded fuel tank
  • High fuel level alarm
  • Skidbase for CALG enclosure sets
  • Low fuel level shutdown
  • Low fuel level alarm
  • Certification for CIS
  • Circuit breaker, IEC, 4 pole
  • Packing case - canopied set
  • Packing case - compact set