Cummins 20kw diesel generator set

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  • Cummins 20kw diesel generator set

    Cummins Landbase Generator Set

    Genset Model: AC20SD1
    Engine Model: Cummins 4B3.9-G2
    Alternator Model: Stamford PI144E
    Frequency: 50Hz
    Winding Connection: 3-Phase, 4-Wire
    Protection Class: IP23
    Voltage Regulator: AVR
    Net Weight: 777KG
    Dimession: 1580mm*650mm*1146mm

    • Specifications
    Prime Power (50Hz) 20 KW 25 KVA
    Standby Power (50Hz) 22 KW 27.50 KVA

    Generator Ratings

    Voltage(V) Hz Phase P.F


    Prime Amps (A) Prime Ratings


    440 254 50 3 0.8 32.80 20 25
    415 240 50 3 0.8 34.78 20 25
    400 230 50 3 0.8 36.09 20 25
    380 220 50 3 0.8 37.98 20 25

    Prime Power (PRP): Prime power is available for an unlimited number of annual hours in variable load application, in accordance with GB/T2820-97 (eqv ISO8528) ; A 10% overload capability is available for a period of 1 hour within a 12-hour period of operation.

    Standby Power Rating (ESP): The standby power rating is applicable for supplying emergency power for the duration of a utility power interruption. No overload, utility parallel or negotiated outage operation capability is available at this rating.

    Engine Data

    Manufacturer / Model: DCEC Cummins 4B3.9-G2 , 4-cycle
    Air Intake System: Air natural cooled
    Fuel System:A model fuel pump
    Bore and Stroke:102*120(mm)
    Compression Ratio: 16.5:1
    Cylinder Arrangement: 4 in line
    Displacement: 3.9L
    Rated RPM: 1500rpm
    Max. Standby Power: 27KW/36.7HP
    Governor Type: Electronic (Std) / RSV Mechanical(Optional)

    Exhaust system
    Exhaust Gas Flow: 4.27m³/min
    Exhaust Temperature: 410°C
    Max Back Pressure: 10kPa
    Air Intake System
    Max Intake Restriction: 5kPa
    Burning Capacity: 1.98m³/min
    Air Flow: 136m³/min
    Fuel System
    100%( Prime Power) Load: 228 g/Kw.h
    75%( Prime Power) Load: 229 g/Kw.h
    50%( Prime Power) Load: 240 g/Kw.h
    110%( Prime Power) Load: 6.3L/h
    Oil System
    Total Oil Capacity: 11L
    Oil Consumption:  ≤4g/kwh
    Engine Oil Tank Capacity: 9.5L
    Oil Pressure at Rated RPM: 345kPa
    Cooling System
    Total Coolant Capacity: 21L
    Thermostat: 82-95℃
    Max Water Temperature: 104℃


    1. All the Cummins Generator Set can coupled with 8,12,24 hours basic fuel tank.
    2. Each Cummins Generator Set is subjected to a comprehensive test program which includes 50% load, 75% load, 100% load and 110% load.
    3. If you need the genset with ATS, silent type, remote control or synchronizing parallel operation, kindly inform of us in advance.


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