C4.4 Open Set Rear Right
C4.4 Open Set Rear Left
C4.4 Open Set Front Right
C4.4 Open Set Front Left
Enclosure
Enclosure
Diesel generator sets

C4.4 (60 Hz)

The Cat® C4.4 diesel generator sets have been developed for standby and prime power applications, delivering reliable power from 36 to 100 ekW at 60 Hz, meeting ISO 8528-5 transient response requirements. The engines are certified to U.S. EPA Tier 3 / SCAQMD emissions standards.

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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

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

GCCP 1.2 Control Panel

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

  • Designed to meet applicable global standards including ISO 8528, ISO 3046 and IEC 60034-1, with CSA, UL2200, IBC, NEMA and NFPA conformity available depending on configuration and market.

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

Fuel-efficient performance for optimized running costs

Proven, reliable power for your business

24x7 Remote asset monitoring and support

Generator Set Specifications
Standby Rating40/50/60/80/100 ekW
Prime Power Rating36/45/55/72/90 ekW
Emissions/Fuel StrategyU.S. EPA Tier 3 Certified / SCAQMD
Voltage110 to 480 Volts
Frequency60 Hz
Speed1800 rpm
Duty CycleStandby, Prime
Engine Specifications
Engine ModelCat® C4.4
Bore4.1 in
Stroke5 in
Displacement268.5 in³
Compression Ratio16.2:1, 17.25:1, 18.2:1 or 18.3:1
AspirationTurbocharged
Fuel SystemDirect Injection or Common Rail
Governor TypeMechanical
Generator Set Dimensions
Length - Maximum75.8 in
Width - Maximum44.1 in
Height - Maximum53.6 in

Air Inlet System

  • Catridge type air filter

Cooling System

  • Radiator and cooling fan with guards
  • Coolant drain line with valve
  • Fan drive, battery charging alternator drive
  • Caterpillar extended life coolant

Exhaust System

  • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose

Generator

  • Automatic voltage regulator
  • 12 Leads
  • IP23 Protection
  • Circuit breaker, IEC, 3 pole, mounted in tower panel
  • Segregated low voltage (AC/DC) wiring panel

Lube System

  • Oil drain line with valve
  • Lubricating oil

Mounting System

  • Termination points for coolant and lube oil drain lines
  • Includes lifting provision and drag points
  • Captive linear vibration isolators

Starting/Charging System

  • Standard battery

General

  • Engine and alternator pre-paint, Caterpillar yellow

Telematics

  • Cat® Product Link™ PL444 cellular
  • Electric Power Ratings Guide
    application/pdf
  • 60 Hz 80 ekW, EPA Tier III Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 100 ekW, EPA Tier III Compliant Emissions Spec Sheet
    application/pdf
  • C4.4, Diesel Generator Set, 60 Hz, 80 -100 ekW, Spec Sheet
    application/pdf
  • 60 Hz 40 ekW, EPA Tier III Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 60 ekW, EPA Tier III Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 50 ekW, EPA Tier III Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 36 ekW, SCAQMD & US EPA Tier 3 equivalent Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 40 ekW, SCAQMD & US EPA Tier 3 equivalent Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 45 ekW, SCAQMD & US EPA Tier 3 equivalent Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 50 ekW, SCAQMD & US EPA Tier 3 equivalent Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 60 ekW, U.S. EPA Certified for Stationary Emergency Application Compliant Emissions Spec Sheet
    application/pdf
  • 60 Hz 55 ekW, U.S. EPA Certified for Stationary Emergency Application Compliant Emissions Spec Sheet
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations