Cummins 40kw diesel generator set

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Cummins 40kw diesel generator set

Cummins Landbase Generator Set

Genset Model: AC40SD1
Engine Model: Cummins 4BTA3.9-G2
Alternator Model: Stamford UCI224D
Frequency: 50Hz
Winding Connection: 3-Phase, 4-Wire
Protection Class: IP23
Voltage Regulator: AVR
Net Weight: 926KG
Dimession: 1900×783×1256mm

  • Specifications
Prime Power (50Hz) 40 KW 50 KVA
Standby Power (50Hz) 44 KW 55 KVA

Generator Ratings

Voltage(V) Hz Phase P.F


Prime Amps (A) Prime Ratings


440 254 50 3 0.8 49.20 30 37.5
415 240 50 3 0.8 69.56 40 50
400 230 50 3 0.8 72.17 40 50
380 220 50 3 0.8 75.97 40 50

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 4BTA3.9-G2, 4-cycle
Air Intake System: Turbo, Water/Air DC
Fuel System: AD type fuel pump
Cylinder Arrangement: 4 in line
Displacement: 3.9L
Bore and Stroke: 102*120(mm)
Compression Ratio: 16.5:1
Rated RPM: 1500rpm
Max. Standby Power at Rated RPM: 64KW/86HP
Governor Type: Electronic Speed Control System

Exhaust system
Exhaust Gas Flow: 9.9m³/min
Exhaust Temperature: 560°C
Max Back Pressure: 10kPa
Air Intake System
Max Intake Restriction: 6kPa
Burning Capacity: 3.6m³/min
Air Flow: 158m³/min
Fuel System
100%( Prime Power) Load: 212 g/Kw.h
75%( Prime Power) Load: 231 g/Kw.h
50%( Prime Power) Load: 250 g/Kw.h
110%( Prime Power) Load: 13.5L/h
Oil System
Total Oil Capacity: 11L
Oil Consumption:  ≤4g/kwh
Engine Oil Tank Capacity: 8.5-9.5L
Oil Pressure at Rated RPM: 345kPa
Cooling System
Total Coolant Capacity: 24L
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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