Cat® C4.4 ACERT Marine Generator Set
Marine Generator Sets
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Specification Summary
- 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
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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 |
| Emissions/Fuel Strategy | U.S. EPA Tier 3 / CCNR Stage 2 |
Engine Specifications
| Aspiration | TA |
| Bore | 105 mm |
| Stroke | 127 mm |
| Displacement | 4.4 l |
| Governor Type | Electronic |
| Engine Model | I-4, 4-Stroke-Cycle-Diesel |
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% |
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
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
General
Single side service (LH)
Keel cooled gensets do not include the keel cooler(s)
Single side service (LH)
Keel cooled gensets do not include the keel cooler(s)
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
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
Lifting eyes
Protective lifting covers
Battery disconnect switch
Note: Keel-cooled gen sets 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).
Coolant Recovery Tank
Keel Cooled Expansion Tank
Sea Water Pump Connections
High Level Dipstick
Governor droop kit (enables paralleling with appropriate customer supplied switchgear)
Mid-Level Oil Filler
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
Jacket Water Heater
Exhaust System
Dry Elbow
Dry Flange
Dry Elbow and Bellows
30 Mins