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.
| Minimum Rating | 36.0R ekW (45 kVA) 36.0R ekW (45 kVA) |
| Maximum Rating | 99.0 ekW (123 kVA) 99.0 ekW (123 kVA) |
| Frequency | 50 Hz or 60 Hz 50 Hz or 60 Hz |
| Speed | 1500 rpm or 1800 rpm 1500 rpm or 1800 rpm |
| Emissions/Fuel Strategy | EPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz) EPA Tier 2 (60 Hz), EU 97/68EC Stage II (50 Hz) |
| Engine Model | In-line 4, 4-Stroke-Cycle Diesel In-line 4, 4-Stroke-Cycle Diesel |
| Aspiration | NA, T, TA NA, T, TA |
| Bore | 4.13 in 105.0 mm |
| Stroke | 5.0 in 127.0 mm |
| Displacement | 269.0 in³ 4.4 l |
| Governor Type | Electronic Electronic |
| Length | 68.9 in 1750.0 mm |
| Width | 47.8 in 1215.0 mm |
| Height | 39.4 in 1000.0 mm |
| Weight | 805 kg (1775 lb) - 1015 kg (2338 lb) 805 kg (1775 lb) - 1015 kg (2338 lb) |
| Excitation | Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds |
| Pitch | 2/3 2/3 |
| Number of Leads | 12 lead reconnectable 12 lead reconnectable |
| Insulation | Class H Class H |
| IP Rating | IP23 water protection (IP44 available for certain models, contact your dealer for information) IP23 water protection (IP44 available for certain models, contact your dealer for information) |
| Voltage Regulator | Solid state voltage regulator with integral voltage adjustment potentiometer Solid state voltage regulator with integral voltage adjustment potentiometer |
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