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SPECS SUMMARY

Minimum Rating36.0R ekW (45 kVA)
Maximum Rating99.0 ekW (123 kVA)
Frequency50 Hz or 60 Hz
Speed1500 rpm or 1800 rpm
Cat® C4.4 Diesel Marine Generator Set has three phase ratings of 50 Hertz at 38.0, 51.5, and 69.0 ekW with heat exchanger cooling and at 36.0, 49.0, and 65.0 ekW with radiator cooling that meet EU CCNR2 emissions standards. The C4.4 also has three phase ratings of 60 Hertz at 44.0, 58.5, 76.0, and 99.0 ekW with heat exchanger cooling and of 42.0, 56.0, 72.0, and 95.0 ekW with radiator cooling. C4.4 gen set is available in 12 or 24 volt as an open gen set or as an enclosed package. Single-side servicing improves ease of maintenance and lowers overall owner operating costs. The compact package size is ideal for a wide range of commercial and pleasure craft applications. These ratings also have Marine Classification Society approved packages available.

Specifications

Minimum Rating36.0R ekW (45 kVA)
Maximum Rating99.0 ekW (123 kVA)
Frequency50 Hz or 60 Hz
Speed1500 rpm or 1800 rpm
Emissions/Fuel StrategyEPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz)
Engine ModelIn-line 4, 4-Stroke-Cycle Diesel
AspirationNA, T, TA
Bore4.13 in (105 mm)
Stroke5 in (127 mm)
Displacement269 in³ (4.4 l)
Governor TypeElectronic
ExcitationSeparately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds
Pitch2/3
Number of Leads12 lead reconnectable
InsulationClass H
Length68.9 in (1750 mm)
Width47.8 in (1215 mm)
Height39.4 in (1000 mm)
IP RatingIP23 water protection (IP44 available for certain models, contact your dealer for information)
Voltage RegulatorSolid state voltage regulator with integral voltage adjustment potentiometer
Weight805 kg (1775 lb) - 1015 kg (2338 lb)

Benefits and Features

Low owning and operating costs with competitive pricing, longlife construction, and extended service intervals

Plug and play remote instrument panels

Low emission, noise, and vibration levels; 60 Hz meets EPA Tier 2, 50 Hz meets EU 97/68EC Stage II regulations

Automatic shutdowns for overspeed, high fresh water temperature, low engine oil pressure, and high exhaust temperature (when fitted with a wet exhaust system).

Available as an open set or with sound attenuated enclosure, and with radiator-, heat exchanger-, or keel-cooled options

Suitable for sophisticated on-board equipment (computers, etc.)

Standard Equipment

  • Air cleaner, single element canister type w/ service indicator and rain cap
  • Dry insulated turbocharger (DIT and DITA models only)
  • Glowplug cold start system
  • Heat exchanger cooled packages w/ Cupro-nickel tube bundle (sized for 50 o C ambient air and 32 o C sea water) or Keel cooled packages (sized for 50 o C ambient air)
  • De-aeration expansion tank
  • Plate-type engine oil cooler
  • Gear driven centrifugal jacket water pump
  • Gear driven self priming sea water pump
  • Caterpillar Extended Life Coolant (heat exchanger cooled packages)
  • Dry insulated turbocharger
  • Water-cooled exhaust manifolds
  • Primary fuel filter / water separator w/ NPT and BSP connectors (ship loose)
  • Secondary fuel filter (LH)
  • Fuel priming pump electric
  • Energize to run shutoff solenoid
  • 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 potentiometer
  • Class H insulation
  • Connection poles
  • Lubricating oil
  • Oil filter (LH)
  • Dipstick (LH)
  • Fumes disposal (closed system)
  • Steel base frame with drip pan
  • Anti-vibration mounts
  • Negative isolated ground electric system
  • Single side service (LH)
  • Keel cooled gensets do not include the keel cooler(s)

Optional Equipment

  • 240V AC, 120V AC