C4.4

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Key Specifications

 

Minimum rated power

36,0R ekW (45 kVA)

Maximum rated power

99,0 ekW (123 kVA)

Frequency

50 Hz or 60 Hz

The Cat® C4.4 marine diesel generator set has three-phase 50 Hertz ratings of 38.0, 51.5 and 69.0 ekW with heat exchanger cooling and 36.0, 49.0 and 65.0 ekW with radiator cooling and meets EU CCNR2 emission standards.

The C4.4 motor also offers three-phase ratings of 60 Hertz at 44.0, 58.5, 76.0 and 99.0 ekW with heat exchanger cooling and 42.0, 56.0, 72.0 and 95.0 ekW with radiator cooling. It is available in 12 or 24 V versions and in open or closed generator set forms.

One of its peculiarities is single-sided maintenance which improves and facilitates ease of maintenance, while also reducing overall ownership and operating costs. It is ideal for a wide range of commercial and recreational applications also thanks to its compact shape. These ratings also have Marine Classification Society approved setups.

Why Choosing It

Economic

 

Among the main advantages of the model are the reduction of management and operating costs, which allow a competitive price, as well as long-lasting construction and extended maintenance intervals.

 

Simple installation

 

Thanks to plug and play remote instrument panels, the model is simple to install.

 

Ecological

 

The model features low emissions, low noise and vibration levels; 60 Hz complies with EPA Tier 2 regulations, 50 Hz complies with EU 97/68EC Stage II regulations

 

Safe

 

Security is the basis of the C4.4 model. It presents:

  • Automatic stop for excessive speed
  • high fresh water temperature
  • low engine oil pressure
  • high exhaust gas temperature (if fitted with a wet exhaust system).

 

Flexible

 

Available as an open genset or with a soundproof cover and with radiator, heat exchanger or keel cooling options.

 

Exceptional power quality

 

Its power quality is exceptional, which makes it suitable and particularly suitable for sophisticated on-board equipment (computers, etc.)

 

Single power source for propulsion and generator sets

 

Reduced maintenance and stay costs in the port

Technical Features

 

TECHNICAL CHARACTERISTICS OF THE GENERATING SET

 

Minimum rated power 36,0R ekW (45 kVA)
Maximum rated power 99,0 ekW (123 kVA)
Frequency 50 Hz or 60 Hz
Speed 1.500 o 1.800 rpm
Emissions/Fuel Strategy EPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz)

TECHNICAL SPECIFICATIONS OF THE ENGINE

 

Engine model Diesel engine model, 4-stroke and 4-cylinder in line
Aspiration NA, T, TA
Bore 105 mm
Stroke 127 mm
Displacement 4.4 l
Regulator type Electronic

DIMENSIONS OF THE GENERATING SET

 

Length 1750 mm
Width 1215 mm
Height 1000 mm
Weight 805 kg (1.775 lb) – 1.015 kg (2.338 lb)

TECHNICAL CHARACTERISTICS OF THE GENERATOR

Excitation Separate excitation from auxiliary windings to provide 300% short circuit current for up to 10 seconds
Step 2/3
Number of conductors 12 reconnectable conductors
Insulation Class H
IP rating Water protection IP23 (IP44 available for some models, for information contact the dealer)
Voltage regulator Solid state voltage regulator with integrated potentiometer for voltage regulation

Standard Equipment

The engine includes standard equipment, already included in the purchase package. They are:

 

AIR INTAKE SYSTEM

  • Air filter, activated carbon with single element, maintenance indicator and rain cover
  • Dry insulated turbocharger (DIT and DITA models only)
  • Cold start system with glow plugs

COOLING SYSTEM

  • Units with cupro-nickel shell and tube heat exchanger (sized for 50°C ambient air and 32°C seawater) or with keel cooling (sized for 50°C ambient air)
  • Deaeration expansion tank
  • Plate type engine oil cooler
  • Gear driven centrifugal jacket water pump
  • Self-priming gear-driven sea water pump
  • Caterpillar Extended Life Coolant (Heat Exchanger Cooling Unit)

EXHAUST SYSTEM

  • Dry insulated turbocharger
  • Water-cooled exhaust manifolds

FUEL SYSTEM

  • Water Separator/Primary Fuel Filter with NPT and BSP Connectors (Supplied Separately)
  • Secondary fuel filter (SX)
  • Electric fuel priming pump
  • Excitation stop solenoid for starting

GENERATOR

  • 12 reconnectable conductors
  • All three-phase models
  • Without brushes
  • Separate excitation from auxiliary windings to provide 300% short circuit current for up to 10 seconds
  • Step 2/3
  • Wide voltage band
  • IP23 water protection
  • Solid state voltage regulator with integrated potentiometer for voltage regulation
  • Class H insulation
  • Connection poles

LUBRICATION SYSTEM

  • Lubricating oil
  • Oil filter (SX)
  • Dipstick (LH)
  • Vapor elimination (closed system)

SUPPORT SYSTEM

  • Steel base frame with gudgeon
  • Anti-vibration mounts

STARTING/CHARGING SYSTEM

  • Electrical grounding system isolated from the negative pole

GENERAL INFORMATIONS

  • One-sided maintenance (LH)
  • Keel-cooled generator sets do not include keel coolers

Equipment on Demand

Upon request, the following equipment can be added to the engine:

 

ROOM HEATER KIT

  • 240V AC, 120V AC

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