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C4.4 (50 Hz)

C4.4 (50 Hz)

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

Maximum Rating 110 kVA
Minimum Rating 50 kVA
Emissions/Fuel Strategy EU Stage II & R96/EUIIIa

Technicial Specifications

Generator Set Specifications
Maximum Rating 110 kVA
Minimum Rating 50 kVA
Emissions/Fuel Strategy EU Stage II & R96/EUIIIa
Voltage 110 to 480 Volts
Frequency 50 Hz
Speed 1500 rpm
Duty Cycle Standby, Prime
Engine Specifications
Engine Model Cat® C4.4
Bore 105 mm
Stroke 127 mm
Displacement 4.4 l
Compression Ratio 16.2:1, 17.25:1, 18.2:1 or 18.3:1
Aspiration Turbocharged
Fuel System Direct Injection or Common Rail
Governor Type Mechanical
Generator Set Dimensions
Length - Maximum 1925 mm
Width - Maximum 1120 mm
Height - Maximum 1361 mm

Advantages and Features

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meetsNFPA 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

M-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

GCCP 1.3 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
  • Image may not be a representative of actual product

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


Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

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

Standard Equipment

  • Air Inlet System
    • Air cleaner; light duty with disposable element
  • Cooling System
    • Coolant drain line with valve
    • Caterpillar extended life coolant
    • Radiator and cooling fan with guards
    • Fan drive, battery charging alternator drive
  • Exhaust System
    • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose
  • Fuel System
    • Standard open set fuel tank/base supplied base, formed steel with single wall integral 8-hour fuel tank
  • Control Panel
    • GCCP 1.3
  • Generators and Attachments
    • Voltage regulator (single phase sensing)
    • Tower panel, IP22, bottom cable entry
    • IP23 Protection
    • Circuit breaker, IEC, 3 pole, mounted in tower panel
    • 12 Leads
    • Segregated low voltage (AC/DC) wiring panel
  • Governing System
    • Mechanical and electrical governing system - model dependent
  • Mounting System
    • Captive linear vibration isolators between base and engine-generator
    • Includes lifting provision and drag points
    • Termination points for coolant and lube oil drain lines
  • Starting/Charging System
    • Batteries
    • 24V battery with rack and cables
  • General
    • Engine and alternator pre-paint, Caterpillar yellow
  • Lube System
    • Oil drain line with valve
    • Lubricating oil

Optional Equipment

  • Alternator System
    • 3 phase sensing
    • Anti-condensation heater
    • R Frame auxilliary winding
    • LC Frame alternator
    • Quadrature droop kit
    • Permanent magnet excitation (PMG)
    • LC Frame alternator with coastal insulation protection
  • Circuit breakers
    • Circuit breaker upgrades - 4 Pole circuit reaker to 250A, 400A and 630A
  • Cooling System
    • Coolant heater
    • Low coolant temperature alarm
    • Low coolant level shutdown
  • Control Panels
    • GCCP 1.3
  • Control Panel Options
    • Earth fault (2 wire only)
  • Enclosures
    • Sound attenuated Level 2 enclosure
    • Rental pack - CAE rental option only
    • Socket blanking plate - CAE rental option only
    • CEE form sockets - CAE rental option only
    • Sound attenuated Level 1 (galv)
  • European Certifications
    • Upgrade to STD set for CE
  • Fuel System Accessories
    • High fuel level alarm
    • Low fuel level shutdown
    • Skidbase for CALG enclosure sets
    • Bunded fuel tank
    • Low fuel level alarm
    • Open set narrow tankbase
    • Compact skidbase for open set
  • Global Certifications
    • Certification for CIS
  • Mounting Options
    • Silencer installation kit
    • Electronic governor
    • Residential siliencer
    • External single point lift - enclosure
    • Battery removal
    • Industrial silencer
  • Power Termination
    • Circuit breakers, UL listed
  • Special Packing/Inspectons for Shipment
    • PGS Test report @ 1.0 power factor
    • PGS Test report @ 0.8 power factor
  • General - Accessories / Miscellaneous
    • Stone guards/rad trans flange
    • Packing case - canopied set
    • Packing case - compact set