CAT® C4.4 ACERT MARINE GENERATOR SET
The C4.4 ACERT marine generator set provides a broad power range of ratings. Packages are available with 60 Hz ratings of 60, 75, 99, 118 ekW and 50 Hz ratings of 65, 80, 99 ekW. The C4.4 ACERT meets U.S. EPA Tier 3 and EU CCNR Stage II emissions regulations. Ratings equal to or below 130 bkW are not subject to IMO regulations. The C4.4 ACERT is electronically controlled with a Common Rail fuel system.
SPECIFICATIONS
Minimum Rating65 ekW (50 Hz), 60 ekW (60 Hz)
Maximum Rating99 ekW (50 Hz), 118 ekW (60 Hz)
Frequency50 Hz or 60 Hz
generator set specifications
Minimum Rating65 ekW (50 Hz), 60 ekW (60 Hz)
Maximum Rating99 ekW (50 Hz), 118 ekW (60 Hz)
Frequency50 Hz or 60 Hz
Speed1500 rpm or 1800 rpm
generator set configurations
Emissions/Fuel StrategyU.S. EPA Tier 3 / CCNR Stage 2
engine specifications
Engine ModelI-4, 4-Stroke-Cycle-Diesel
AspirationTA
Bore105.0 mm
Stroke127.0 mm
Displacement4.4 L
Governor TypeElectronic
generator specifications
ExcitationAREP
Pitch2/3
Number of leads12-lead reconnectable
InsulationClass H
IP RatingIP23
Voltage regulator±0.5%
generator set dimensions
Length66.9-69.6 in (1699-1769 mm)
Width956 mm
Height1245 mm
Weight2518-2844 lb (1142 - 1290 kg)
C4.4 ACERT STANDARD 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 - general
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
Power Take-Offs - multiv groove for alternator drive###pto shaft kit optional
General - lifting eyes###protective lifting covers###battery disconnect switch###note keelcooled gen sets do not include the keel coolers
C4.4 ACERT OPTIONS
- coolant recovery tank
- keel cooled expansion tank
- sea water pump connections
- high level dipstick
- governor droop kit enables paralleling with appropriate customer supplied switchgear
- midlevel oil filler
- power takeoffs
Crankshaft Pulley - Crankshaft PTO Shaft, Engine Turning Device - special testsreports
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