Marine Generator Sets:

Cat® C4.4 ACERT Marine Generator Set

C4.4 ACERT Marine Generator Set
Minimum Rating
58R ekW (50 Hz), 51R ekW (60 Hz)
Maximum Rating
88R ekW (50 Hz), 105R ekW (60 Hz)
Frequency
50 Hz or 60 Hz
Speed
1500 rpm or 1800 rpm

The C4.4 ACERT marine genset packages with heat exchanger or keel cooling are available with 60 Hz ratings of 60, 75, 99, 118 ekW and 50 Hz ratings of 65, 80, 99 ekW. Radiator cooled gen sets are with 60 Hz ratings of 51, 66, 90, and 105 ekW and 50 Hz ratings of 58, 73, and 88 ekW. The C4.4 ACERT meets U.S. EPA Tier 3 and EU CCNR Stage II emissions regulations. The C4.4 ACERT is electronically controlled with a Common Rail fuel system.



Product Specs

  • Generator Set Specifications

  • Minimum Rating
    58R ekW (50 Hz), 51R ekW (60 Hz)
    Maximum Rating
    88R ekW (50 Hz), 105R ekW (60 Hz)
    Frequency
    50 Hz or 60 Hz
    Speed
    1500 rpm or 1800 rpm
    Minimum Rating
    58R ekW (50 Hz), 51R ekW (60 Hz)
    Maximum Rating
    88R ekW (50 Hz), 105R ekW (60 Hz)
    Frequency
    50 Hz or 60 Hz
    Speed
    1500 rpm or 1800 rpm
    Emissions/Fuel Strategy
    U.S. EPA Tier 3 / CCNR Stage 2
  • Generator Set Configurations

  • Emissions/Fuel Strategy
    U.S. EPA Tier 3 / CCNR Stage 2
  • Engine Specifications

  • Engine Model
    I-4, 4-Stroke-Cycle-Diesel
    Aspiration
    TA
    Bore
    4.13in
    Stroke
    5.0in
    Displacement
    269.0in3
    Governor Type
    Electronic
    Aspiration
    TA
    Bore
    4.13in
    Stroke
    5in
    Displacement
    269in³
    Governor Type
    Electronic
    Engine Model
    I-4, 4-Stroke-Cycle-Diesel
  • Generator Set Dimensions

  • Length
    66.9-69.6in
    Weight
    2518-2844lb
    Length
    66.9-69.6 in (1699-1769 mm), 80.2R in (2037R mm)
    Width
    37.6 inches (radiator - 38.8 inches)
    Weight
    2518-2844 lb (1142 - 1290 kg)
    Height
    49.0 inches (1245 mm)
  • Generator Specifications

  • Excitation
    AREP
    Pitch
    2/3
    Number of Leads
    12-lead reconnectable
    Insulation
    Class H
    IP Rating
    IP23
    Voltage Regulator
    ±0.5%

Equipment

  • Air Inlet System
    • Open Crankcase Ventilation (OCV) system
    • Turbocharger, jacket water cooled
    • Integrated coolant lines into manifold utilizing EGR circuit
  • Cooling System
    • Integrated heat exchanger and aftercooler
    • Compact design integral coolant passages
    • Thermostat and housing
    • Jacket Water Heater 120/240V option
    • Auxiliary seawater pump, gear driven
    • Engine mounted heat exchanger, removable tubeBundle (for sea water) (heat exchanger engines only)
    • Engine oil cooler
    • Auxiliary sea water lines
    • Keel cooling
  • Exhaust System
    • Dry insulated turbocharger
    • Water-cooled exhaust manifolds
    • 102 mm (4 in) round flanged outlet
    • Dry Elbow/Bellows/Flange options
  • Fuel System
    • Common Rail Fuel System
    • Simplex and Duplex Fuel options
    • Flexible fuel line option
    • Fuel transfer pump, gear driven
  • Generator
    • 12 lead reconnectable
    • 3 phase all models
    • Brushless
    • Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds
    • 2/3 pitch
    • Broad voltage band
    • IP23 water protection
    • Solid state voltage regulator w/ integral voltage adjustment
    • Class H insulation
    • Generator winding temperature rise meets marine society requirements.
  • Governing System
    • Electronic governor
    • Electronic
  • Lube System
    • Lubricating oil
    • Oil filter, RH Service
    • Simplex and Duplex options
    • Crankcase breather
    • Oil filler, in valve cover and timing case (option)
    • Oil level gauge, RH service
    • Oil pan
    • Oil pan drain, RH
    • Engine oil pump (gear driven)
  • Mounting System
    • Formed C-channel rails
    • Anti vibration isolators between base and engine-generator
  • Control System
    • Panels available in RH, LH, and rear configurations with a remote mount option
    • Electronic diagnostics and fault logging
    • Electronic governor
    • Electronic Control Module (ECM)
    • SAE J1939 data link Ratings Only
    • Electronic fuel/air ratio control
  • Flywheels & Flywheel Housings
    • Flywheel Housing, SAE No. 3
    • Flywheel, 126 teeth
    • SAE standard rotation
  • Power Take-offs
    • Multi-V groove for alternator drive
    • PTO Shaft Kit (optional)
  • General
    • Single side service (LH)
    • Keel cooled gensets do not include the keel cooler(s)
    • Lifting eyes
    • Protective lifting covers
    • Battery disconnect switch
    • Note: Keel-cooled gen sets do not include the keel cooler(s).
  • Power Take-offs
    • Crankshaft Pulley - Crankshaft PTO Shaft, Engine Turning Device
  • Special Tests/reports
    • Test Certificate at Rated PWR
  • Generators And Generator Attachments
    • 110V Anti-Condensation Heater
    • 230V Anti-Condensation Heater
  • Exhaust System
    • Dry Elbow
    • Dry Flange
    • Dry Elbow and Bellows

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