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Cat<sup>®</sup> C4.4 Marine Generator Set

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

  • Standard/Optional Equipment

  • Catalog

Power Range

36.0R - 99 ekW

Frequency

50 / 60

Emissions

NST

Speed

1500 / 1800 rpm

Minimum Rating

36.0R ekW (45 kVA)

Engine Model

In-line 4, 4-Stroke-Cycle Diesel

Maximum Rating

99.0 ekW (123 kVA)

Aspiration

NA, T, TA

Bore

4.13in

Stroke

5in

Displacement

269in³

Governor Type

Electronic

Length

68.9in

Width

47.8in

Height

39.4in

Weight

805 kg (1775 lb) - 1015 kg (2338 lb)

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

Space heater kit

240V AC, 120V AC

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

Secondary fuel filter (LH)

Fuel priming pump electric

Energize to run shutoff solenoid

Generator

12 lead reconnectable

3 phase all models

Brushless

IP23 water protection

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)

ALL

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

Secondary fuel filter (LH)

Fuel priming pump electric

Energize to run shutoff solenoid

Generator

12 lead reconnectable

3 phase all models

Brushless

IP23 water protection

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

Space heater kit

240V AC, 120V AC

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