Overview
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 Rating | 36.0R ekW (45 kVA) |
| Maximum Rating | 99.0 ekW (123 kVA) |
| Frequency | 50 Hz or 60 Hz |
| Minimum Rating | 36.0R ekW (45 kVA) |
| Maximum Rating | 99.0 ekW (123 kVA) |
| Frequency | 50 Hz or 60 Hz |
Benefits & Features
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
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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 Model | In-line 4, 4-Stroke-Cycle Diesel |
| Aspiration | NA, T, TA |
| Bore | 4.13 in |
| Stroke | 5 in |
| Displacement | 269 in³ |
| Governor Type | Electronic |
| Emissions/Fuel Strategy | EPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz) |
| Length | 68.9 in |
| Width | 47.8 in |
| Height | 39.4 in |
| 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 |
| 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 Model | In-line 4, 4-Stroke-Cycle Diesel |
| Aspiration | NA, T, TA |
| Bore | 105 mm |
| Stroke | 127 mm |
| Displacement | 4.4 l |
| Governor Type | Electronic |
| Emissions/Fuel Strategy | EPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz) |
| Length | 1750 mm |
| Width | 1215 mm |
| Height | 1000 mm |
| 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 |
Benefits & Features
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
- 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
- Space heater kit
- 240V AC, 120V AC
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