Cat® C4.4 Marine Generator Set

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

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)

Cat^® C4.4 Marine Generator Set