50Hz 20kW 25kVA Cummins 4B3.9-G2 Diesel Generator
The GENLITEC POWER GPC25D5 open type and GPC25S5 silent type diesel generator sets provide 20kW/25kVA prime power and 22kW/27.5kVA standby power. Powered by a Cummins 4B3.9-G2 four-cylinder water-cooled diesel engine and coupled with a brushless copper alternator, they are designed to deliver stable and reliable power for commercial, industrial, construction and backup applications.
Designed for 50Hz operation at 1500RPM, the generator sets provide three-phase, four-wire power with flexible voltage configurations of 220/380V, 230/400V and 240/415V. The generator package features a 24V DC electric starting system, anti-vibration mountings, engine protection functions and a digital control panel for dependable operation and convenient monitoring.
The GPC25D5 open type is suitable for installations where easy access for inspection and maintenance is important. The GPC25S5 silent type features a weatherproof sound-attenuated enclosure with an internal exhaust silencer, making it suitable for applications where reduced operating noise and environmental protection are required.
Generator Set
| Open Type Model | GPC25D5 |
| Silent Type Model | GPC25S5 |
| Prime Power | 20kW/25kVA |
| Standby Power | 22kW/27.5kVA |
| Phase & Wire | 3 Phase, 4 Wires |
| Power Factor | 0.8 |
| Frequency | 50Hz |
| Rated Voltage | 220/380V, 230/400V, 240/415V |
| Rated Speed | 1500RPM |
| Fuel Tank Capacity | 45L |
Diesel Engine
| Engine Model | Cummins 4B3.9-G2 |
| Cylinder Number | 4 |
| Aspiration System | Naturally Aspirated |
| Cooling Method | Water Cooled |
| Governor Type | Electronic |
| Bore x Stroke | 102 x 120 mm |
| Compression Ratio | 17.5:1 |
| Rated Speed | 1500RPM |
| Displacement | 3.9L |
| Rated Power | 24kW |
| Standby Power | 27kW |
| Fuel System | BYC A-Type |
| Oil Capacity | 10.9L |
| Coolant Capacity | 7.2L (Engine Only) |
| Electric Starting System | DC 24V |
Fuel Consumption
| 100% Prime Load | 6.7L/H |
| 75% Prime Load | 5.2L/H |
| 50% Prime Load | 4.0L/H |
| 25% Prime Load | 2.7L/H |
Alternator
| Number of Phase | 3 |
| Rated Power | 20kW/25kVA |
| Frequency | 50Hz |
| Power Factor | 0.8 |
| Poles | 4 |
| Temperature Rise | 125K |
| Terminals | 12 |
| Insulation Class | H |
| Ambient Temperature | 40°C |
| IP Rating | IP23 |
| Excitation System | Self-Excited |
| Bearing | Single Bearing |
| Coating | Vacuum Impregnation |
| Voltage Regulator | AVR |
| Coupling | Flexible Disc |
Control Panel
Emergency stop button
Main circuit breaker
Float battery charger
Manual/Auto start control panel
Fuel level meter
Controller power switch
Alarm buzzer
Sound Attenuated Enclosure
Fully weatherproof sound-attenuated enclosure with internal exhaust silencer
Highly corrosion-resistant construction
Applications
The GENLITEC POWER 20kW/25kVA diesel generator set is suitable for a variety of prime and standby power requirements, including:
Commercial and office buildings
Small industrial facilities
Construction and job sites
Agricultural and rural facilities
Telecommunication and remote sites
Emergency and backup power systems
Why Choose GENLITEC POWER
GENLITEC POWER focuses on practical generator configurations that balance performance, operating convenience and long-term serviceability. The GPC25D5 and GPC25S5 are configured with commonly used industrial components and can be adapted to different installation and control requirements.
20kW/25kVA prime rating for medium-duty power requirements
50°C radiator with engine-driven cooling fan
Digital controllers available from DEEPSEA, COMAP, DEIF or SMARTGEN
ABB, DELIXI or CHINT MCCB options for main circuit protection
Open and sound-attenuated configurations for different installation environments
Optional ATS, trailer, extended fuel tanks and power sockets
Warranty
GENLITEC POWER provides a standard warranty of 12 months or 1000 working hours, whichever comes first.
Options
ATS for automatic start and stop when utility power fails or returns
Single axle trailer
12-hour fuel tank
24-hour fuel tank
Power sockets, including CEE or AUS standards
Frequently Asked Questions
What is the rated power of the GPC25D5 and GPC25S5 diesel generator sets?
The generator sets provide 20kW/25kVA prime power and 22kW/27.5kVA standby power.
What diesel engine is used in this generator set?
The generator set uses a Cummins 4B3.9-G2 four-cylinder, 3.9L water-cooled diesel engine with an electronic governor.
What frequency and speed does the generator set use?
The generator set is designed for 50Hz operation at a rated speed of 1500RPM.
What voltage configurations are available?
Available voltage configurations include 220/380V, 230/400V and 240/415V, depending on the selected generator configuration.
Is a silent type version available?
Yes. The GPC25S5 silent type features a weatherproof sound-attenuated enclosure with an internal exhaust silencer, while the GPC25D5 is the open type version.
Can an ATS be supplied with the generator set?
Yes. An ATS is available as an option for automatic generator start and stop when the utility power fails or returns.
What warranty is provided?
The standard warranty is 12 months or 1000 working hours, whichever comes first.
