C4.4

Cat® C4.4 Marine Generator Set

C4.4 Genset Marine Generator Sets

DESCRIPTION

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.

Economical

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

Easy to install

Plug and play remote instrument panels

Environmentally responsible

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

Safe

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

Flexible

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

Excellent power quality

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

Single source of supply for propulsion and generator sets

Reduced service costs and port time

  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

Standard Equipment

  • Air Inlet System
    • Air cleaner, single element canister type w/ service indicator and rain cap
    • Dry insulated turbocharger (DIT and DITA models only)
    • Glowplug cold start system
  • Cooling 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)
  • Exhaust System
    • Dry insulated turbocharger
    • Water-cooled exhaust manifolds
  • Fuel System
    • 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
  • 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 potentiometer
    • Class H insulation
    • Connection poles
  • Lube System
    • Lubricating oil
    • Oil filter (LH)
    • Dipstick (LH)
    • Fumes disposal (closed system)
  • Mounting System
    • Steel base frame with drip pan
    • Anti-vibration mounts
  • Starting/Charging System
    • Negative isolated ground electric system
  • General
    • Single side service (LH)
    • Keel cooled gensets do not include the keel cooler(s)

Optional Equipment

Specs

Overview

Long Name:
Cat® C4.4 Marine Generator Set
Name:
C4.4
Brand:
Caterpillar
Status:
Current

Generator Set Specifications

Minimum Rating
36.0R ekW (45 kVA)
Maximum Rating
99.0 ekW (123 kVA)
Frequency
50 Hz or 60 Hz
Speed
1500 rpm or 1800 rpm

Engine Specifications

Engine Model
In-line 4, 4-Stroke-Cycle Diesel
Aspiration
NA, T, TA
Bore
4.13 in / 105 mm
Stroke
5 in / 127 mm
Displacement
269 in³ / 4.4 l
Governor Type
Electronic

Generator Set Specifications

Emissions/Fuel Strategy
EPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz)

Generator Set Dimensions

Length
68.9 in / 1750 mm
Width
47.8 in / 1215 mm
Height
39.4 in / 1000 mm
Weight
805 kg (1775 lb) - 1015 kg (2338 lb)

Generator Specifications

Excitation
Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds
Pitch
2/3
Number of Leads
12 lead reconnectable
Insulation
Class H
IP Rating
IP23 water protection (IP44 available for certain models, contact your dealer for information)
Voltage Regulator
Solid state voltage regulator with integral voltage adjustment potentiometer

SEE HOW C4.4 COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.

Marine Generator Sets
C4.4
C4.4 Genset Marine Generator Sets
Brand
Caterpillar
Status
Current
Aspiration
NA, T, TA
Bore
4.13 in / 105 mm
Stroke
5 in / 127 mm
Displacement
269 in³ / 4.4 l
Selected Model
Marine Generator Sets
C32 Tier 4 / IMO III
Cat C32 Marine Generator Set EPA Tier 4 / IMO III
Brand
Caterpillar
Status
Current
Aspiration
Turbocharged-aftercooled aspiration
Bore
5.71 in / 145 mm
Stroke
6.38 in / 162 mm
Displacement
1959 in³ / 32.1 l
More Details
Marine Generator Sets
C4.4 (Electronic)
C4.4 GenSet (Electronic Control System)
Brand
Cat
Status
Current
Aspiration
Turbocharged-aftercooled and turbo only aspiration (Turbocharged aspiration only for 65ekW (71bkW))
Bore
4.13 in / 105 mm
Stroke
5 in / 127 mm
Displacement
268 in³ / 4.4 l
More Details