New CAT Equipment

Cat® C4.4 ACERT Marine Generator Set

The C4.4 ACERT marine genset packages with heat exchanger or keel cooling are available with 60 Hz ratings of 60, 75, 99, 118 ekW and 50 Hz ratings of 65, 80, 99 ekW. Radiator cooled gen sets are with 60 Hz ratings of 51, 66, 90, and 105 ekW and 50 Hz ratings of 58, 73, and 88 ekW. The C4.4 ACERT meets U.S. EPA Tier 3 and EU CCNR Stage II emissions regulations. The C4.4 ACERT is electronically controlled with a Common Rail fuel system.

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    Product Specs

    Generator Set Specifications

    Minimum Rating 58R ekW (50 Hz), 51R ekW (60 Hz)
    Maximum Rating 88R ekW (50 Hz), 105R ekW (60 Hz)
    Frequency 50 Hz or 60 Hz
    Speed 1500 rpm or 1800 rpm
    Emissions/Fuel Strategy U.S. EPA Tier 3 / CCNR Stage 2

    Engine Specifications

    Aspiration TA
    Bore 4.13 in
    Stroke 5 in
    Displacement 269 in³
    Governor Type Electronic
    Engine Model I-4, 4-Stroke-Cycle-Diesel

    Generator Set Dimensions

    Weight 2518-2844 lb (1142 - 1290 kg)
    Length 66.9-69.6 in (1699-1769 mm), 80.2R in (2037R mm)
    Width 37.6 inches (radiator - 38.8 inches)
    Height 49.0 inches (1245 mm)

    Generator Specifications

    Excitation AREP
    Pitch 2/3
    Number of Leads 12-lead reconnectable
    Insulation Class H
    IP Rating IP23
    Voltage Regulator ±0.5%