
Marine Generator Sets
Cat® C4.4 ACERT Marine Generator Set
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Minimum Rating58R ekW (50 Hz), 51R ekW (60 Hz)
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Minimum Rating58R ekW (50 Hz), 51R ekW (60 Hz)
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Maximum Rating88R ekW (50 Hz), 105R ekW (60 Hz)
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Maximum Rating88R ekW (50 Hz), 105R ekW (60 Hz)
Generator Set Specifications
- Minimum Rating
- 58R ekW (50 Hz), 51R ekW (60 Hz)
- Minimum Rating
- 58R ekW (50 Hz), 51R ekW (60 Hz)
- Maximum Rating
- 88R ekW (50 Hz), 105R ekW (60 Hz)
- Maximum Rating
- 88R ekW (50 Hz), 105R ekW (60 Hz)
- Frequency
- 50 Hz or 60 Hz
- Frequency
- 50 Hz or 60 Hz
- Speed
- 1500 rpm or 1800 rpm
- Speed
- 1500 rpm or 1800 rpm
- Emissions
- U.S. EPA Tier 3 / CCNR Stage 2
Engine Specifications
- Aspiration
- TA
- Aspiration
- TA
- Bore
- 4.13 in
- Bore
- 4.13 in
- Stroke
- 5.0 in
- Stroke
- 5 in
- Displacement
- 269.0 in3
- Displacement
- 269 in³
- Governor Type
- Electronic
- Governor Type
- Electronic
- Engine Model
- I-4, 4-Stroke-Cycle-Diesel
- Engine Model
- I-4, 4-Stroke-Cycle-Diesel
Generator Set Configurations
- Emissions
- U.S. EPA Tier 3 / CCNR Stage 2
Generator Set Dimensions
- Weight
- 2518-2844 lb (1142 - 1290 kg)
- Length
- 66.9-69.6 in (1699-1769 mm), 80.2R in (2037R mm)
- Width
- 37.6 inches (radiator - 38.8 inches)
- 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%
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Air Inlet System
- Open Crankcase Ventilation (OCV) system
- Turbocharger, jacket water cooled
- Integrated coolant lines into manifold utilizing EGR circuit
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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
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Exhaust System
- Dry insulated turbocharger
- Water-cooled exhaust manifolds
- 102 mm (4 in) round flanged outlet
- Dry Elbow/Bellows/Flange options
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Fuel System
- Common Rail Fuel System
- Simplex and Duplex Fuel options
- Flexible fuel line option
- Fuel transfer pump, gear driven
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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.
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Governing System
- Electronic governor
- Electronic
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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)
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Mounting System
- Formed C-channel rails
- Anti vibration isolators between base and engine-generator
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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
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Flywheels & Flywheel Housings
- Flywheel Housing, SAE No. 3
- Flywheel, 126 teeth
- SAE standard rotation
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Power Take-Offs
- Multi-V groove for alternator drive
- PTO Shaft Kit (optional)
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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).
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Power Take-Offs
- Crankshaft Pulley - Crankshaft PTO Shaft, Engine Turning Device
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Special Tests/Reports
- Test Certificate at Rated PWR
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Generators and Generator Attachments
- 110V Anti-Condensation Heater
- 230V Anti-Condensation Heater
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Exhaust System
- Dry Elbow
- Dry Flange
- Dry Elbow and Bellows