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Diesel genset LRYC340

340 kVA standby and 305 kVA prime, 50 Hz, 400/230 V. Yuchai YC6MK420L-D20 engine, Energis EG-312-4 alternator, ISO 8528 class G3.

Diesel genset LRYC340

All models / 50 Hz / LRYC340

Standby340 kVA272 kW
Prime305 kVA244 kW
Fuel at 100 %68 L/hStandby 77 L/h
Specific fuel0.279L/kWh
Canopy weight2,650 kg3,900 × 1,500 × 1,800
Enclosuresoundproof canopyISO 8528 G3 · 400/230 V

Ratings by voltage

Voltage, VStandby, kVAStandby, kWPrime, kVAPrime, kWCurrent, A
380/220340272305244516
400/230340272305244490
415/240340272305244473

Ratings per ISO 8528 at PF 0.8.

Fuel consumption

Datasheet values at 50, 75 and 100 % of prime and in standby duty.

0255075 0100200 kW L/h 37.452.26877
LoadPower, kWFuel, L/hL/kWh
50 %12237.40.307
75 %18352.20.285
100 %244680.279
Standby272770.283

Engine

Make
Yuchai
Model
YC6MK420L-D20
Cylinders
6 in line
Bore × stroke, mm
123 / 145
Aspiration
turbocharged and aftercooled
Compression ratio
16.8:1
Displacement, L
10.34
Speed, rpm
1,500
Governor
electronic
Engine prime power, kW
281
Engine maximum power, kW
309
Oil capacity, L
28
Starter, V
24

Alternator

Make
Energis
Model
EG-312-4
Protection
IP21
Insulation class
H
Efficiency at 100 %, PF 0.8, %
93.2
Excitation
auxiliary winding
Voltage regulator
KR440
Voltage regulation
± 1 %

Dimensions and weight

VersionLength, mmWidth, mmHeight, mmWeight, kgTank, L
Open on base frame3,0001,1501,6502,200600
Canopy (soundproof canopy)3,9001,5001,8002,650600

Specifications are manufacturer datasheet data, edition 08.2025; power factor 0.8; fuel consumption for diesel with a density of 0.85 kg/L. Model availability and lead time are confirmed in the commercial offer.

Scope of supply and control

  • Set-mounted radiator with engine-driven fan, cooling system rated for +40 °C ambient
  • Anti-vibration mounts between engine, alternator and base frame
  • Base frame fuel tank (up to and including 825 kVA), oil and coolant drains with valves
  • Protective guards for fan and rotating parts
  • Exhaust bellows and industrial silencer
  • 12 or 24 V starter motor and battery
  • 3-pole output circuit breaker
  • Factory test of every set at 0, 25, 50, 75, 100 and 110 % load
  • Compliance with ISO 8528, ISO 3046, IEC 60034, BS 5000; manufacturing to ISO 9001 and ISO 14001; CE certificate

Control and protection

  • Standard controller with protections: high coolant temperature, low oil pressure, overspeed, start failure, over and under frequency and voltage, overload, overcurrent, emergency stop
  • Measurements: voltage, current, frequency, power factor, kW, kWh, kVA, running hours, number of starts
  • Options: automatic mains failure, fuel level, RS485 and Modbus RTU, Modbus TCP/IP, SNMP, extension modules
  • Alternative controllers: ComAp, DeepSea, Woodward, Smartgen
  • Parallel operation between sets and with the grid

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