30kVA Cummins Diesel Generator




Standards: 2006/42/EC Machinery safety, 2006/95/EC Low voltage, EN 60204-1 : 2006+A1 : 2009, EN ISO 12100 : 2010, EN ISO 8528-13:2016, EN ISO 13849-1 : 2015, EN 60204-1 : 2018
PRP: Prime power is available for an unlimited number of annual operating hours in variable load applications, in accordance with ISO 8528-1.
ESP: The standby power rating is applicable for supplying emergency power in variable load applications in accordance with ISO 8528-1. Overload is not allowed.
Conditions: According to the standard, the nominal power assigned by the genset is given for 25°C air inlet temperature, of a barometric pressure of 100 kPA (100 m A.S.L), and 30 % relative humidity.
GENERATOR SPECIFICATION
ITEMS | PRP | EPS |
---|---|---|
Power | 27kVA | 30kVA |
Power | 22kW | 24kW |
Frequency / Phase / Power factor | 50Hz / 3P / PF0.8 | |
Standard voltage | 400/230V | |
Available voltage | 380/220V · 415/240V |


GENERAL INSTALLATION
ITEMS | OPEN | SILENT |
---|---|---|
Dimension (L*W*H) (mm) | 1800*960*1468 | 2298*954*1250 |
Weight (kg) | 811 | 1100 |
Fuel tank (L) | 195 | 90 |
Sound pressure level | ||
@75% load & 1m dB(A) | TBA | TBA |
@75% load & 7m dB(A) | TBA | TBA |


NOTE: Weights and dimensions based on standard products. According to 2000/14/CE, sound data is provided at 7m for 75% prime power. For actual installation, please contact the manufacturer.
PERFORMANCE DATA
Item | Description |
---|---|
Engine brand | CUMMINS |
Engine model | 4B3.9-G2 |
Fuel | Diesel |
Aspiration | Naturally Aspirated |
Cooling | Water-cooled |
Governor | Electronic |
Cyl arrangement | 4L |
Application | Prime & Standby |
Fuel consumption
- 100% ESP (L/H): 7.5
- 100% PRP (L/H): 6.7
- 75% PRP (L/H): 5.2
- 50% PRP (L/H): 3.9
ENGINE SPECIFICATION
BASIC DATA
Specification | Details |
---|---|
Engine brand | CUMMINS |
Engine model | 4B3.9-G2 |
Displacement | 3.9L |
No. of cyl / arrangement | 4L |
Bore x stroke | 102×120mm |
Compression ratio | 18.0 : 1 |
Engine speed | 1500rpm |
Engine type | 4-stroke diesel |
EXHAUST SYSTEM
Specification | Value |
---|---|
Exhaust stack gas temperature (max.) | 410°C |
Exhaust gas flow rate (max.) | 71 L/S |
Exhaust system backpressure (maximum allowable) | 10 kPa |
FUEL SYSTEM
Specification | Value |
---|---|
Maximum restriction at lift pump | 13.6 kPa |
Max. fuel flow | 30 L/H |
COOLING SYSTEM
Specification | Value |
---|---|
Radiator air flow | 60 m³/min |
Total oil capacity | 10.9L |
Total coolant capacity | 15.2L |
ELECTRICAL SYSTEM
Specification | Value |
---|---|
Starter motor rated voltage | DC12V |
Start battery | 2×60Ah (580CCA) |
Battery charging alternator | DC24V / 40A |
INLET AIR
Specification | Value |
---|---|
Air filter | Dry type |
Max. combustion air intake restriction | 3.2 kPa |
Combustion air inlet flow rate | 32 L/S |
Max. allowable combustion air inlet temp | 50°C |
ALTERNATOR SPECIFICATION
BASIC DATA | BASIC DATA | ||
---|---|---|---|
Insulation & temperature rise | Class H/H | Type | Brushless |
Excitation type | Self-excited | No. of bearings | Single bearing |
Winding leads | 12 | Coupling system | Flexible disc |
Winding connections (standard) | Star | Maximum over speed | 2250 RPM |
Winding pitch | Two thirds | Coating type | Vacuum impregnation |
Number of phase | Three phase | IP rating | IP23 |
CONTROL SYSTEM
Key features








GENSET VERSION
STANDARD FEATURES
- Diesel engine, 50 degrees radiator, brushless alternator
- Intelligent controller
- Output circuit breaker (up to 1250A)
- Maintenance-free start battery, battery charge, battery switch
- Steel industrial silencer, exhaust bellows and elbows
- Steel chassis and anti-vibration shock absorbers
- Lifting and moving structure, expansion of oil and coolant discharge
- Moving parts protection, hot parts protection
- Special toolbox, delivery attached documentation


OPTIONAL FEATURES
ENGINE
- Water jacket preheater
- Oil Preheater, oil level maintainer, oil manual pump
- Heavy air filtration
- Residential silencer
- Remote radiator, heat exchanger
ALTERNATOR
- PMG/AREP excitation system
- Anti-condensation heater
- Winding/bearing RTD
- Double bearing structure
- IP44 protection class
CONTROL SYSTEM
- Synchronizing panel, remote control panel
- RS232/485, 4G & GPS wireless, ethernet communication card
- Additional digital/analog input/output
- Monitoring software, mobile APP
- Ni-Cad batteries
GENERATING SET
- External fuel tank, automatic fuel feeding
- ATS/output /combining/distribution cabinet
- Load test cabinet
- Mobile trailer
- Customized design
30kVA Cummins Powered Diesel Generator – Reliable Backup Power for Bangladesh
Looking for a 30kVA diesel generator in Bangladesh that offers reliable performance and fuel efficiency?
The CU30D5 Cummins Powered Diesel Generator, available at JRC Powertech, is your go-to solution for factories, clinics, small industries, and offices that require continuous or emergency power backup.
Built with a trusted Cummins 4B3.9-G2 engine, this generator offers long life, low maintenance, and excellent fuel economy under heavy loads.
⚡ Why Choose a 30kVA Cummins Generator?
- Global Trust: Cummins engines are globally renowned for performance and durability.
- Optimized for Bangladesh: Performs exceptionally in high-temperature, high-humidity, and voltage-fluctuating conditions.
- Dual Application: Suitable for both prime power (PRP) and standby power (ESP) usage.
- Low Fuel Consumption: Saves long-term operational costs with exceptional fuel economy.
- Low Maintenance: Built to run reliably for years with minimal servicing.


🤝 Why Buy from JRC Powertech?
JRC Powertech is a trusted diesel generator supplier in Bangladesh with over 20 years of excellence in the power sector.
- 🔧 Local stock and fast delivery nationwide
- 🛠️ Expert generator sizing, installation & commissioning
- 🧰 Genuine Cummins spare parts and servicing
- 📞 Emergency support and routine maintenance
- 🛡️ Warranty-backed performance
💡 We don’t just sell generators. We deliver peace of mind.


FAQ
What is the fuel consumption of a 30kVA Cummins generator?
At full load, it consumes approx. 6.7–7.5 liters/hour, depending on conditions.
Can I use the CU30D5 for continuous operation?
Yes. It is designed for both prime (continuous) and standby (emergency) use.
Is a soundproof (silent) version available?
Absolutely. A silent canopy model is available for noise-sensitive environments.
Does JRC Powertech offer delivery and installation?
Yes. We deliver and install across all regions of Bangladesh.
Is this generator compliant with Bangladeshi safety and voltage standards?
Yes. It meets ISO and CE standards and is fully compatible with local requirements.
📞 Request a Free Power Consultation Today
Need help selecting the right generator for your facility?
Call our expert team at 📞 01915-491405 or Get a Free Quote now.
Let us power your business — efficiently and affordably.