Soundproof 40kW 50kVA Diesel Generator Powered by Reliable Cummins Engine | Hosem Power
The Soundproof 40kW 50kVA Diesel Generator Powered by Reliable
Cummins Engine delivers stable, fuel-efficient, and low-noise power
for both residential and commercial applications.
Powered by a genuine Cummins 4BTA3.9-G2 diesel engine, this
generator offers 40kW (50kVA) prime power and 44kW (55kVA) standby
power, making it the perfect solution for reliable energy supply in
offices, factories, schools, or backup systems during power
outages.
Built with precision engineering and a heavy-duty soundproof
canopy, this Cummins diesel generator ensures quiet operation and
extended durability, providing dependable performance even in harsh
working conditions.
Key Features
- Reliable Cummins Power – Equipped with the Cummins 4BTA3.9-G2
engine, known worldwide for its reliability, low maintenance cost,
and long service life.
- Quiet & Soundproof Design – Enclosed in a fully soundproof canopy
with advanced insulation, keeping noise levels around 72dBA @ 7m,
ideal for residential or office areas.
- Smart Control System – Integrated Deepsea DSE7320 controller with
Automatic Mains Failure (AMF) function, digital monitoring, and
complete safety protections.
- Durable & Weatherproof Canopy – Built with anti-corrosion steel
panels, powder-coated finish, and stainless-steel locks for
long-term outdoor use.
- Extended Runtime – Large-capacity base fuel tank supports up to 8
hours of continuous operation at full load.
Specification of Soundproof 40kW 50kVA Diesel Generator Set
| Generator Set Specification |
| Model | A-C55S |
| Max. Power | kVA | 55 |
| kW | 44 |
| Rate Power | kVA | 50 |
| kW | 40 |
| Frequency | Hz | 50 |
| Rate Voltage | V | 400/230 |
| Rate Current | A | 72.2 |
| Fuel Tank Capacity | L | 120 |
| Dimension For Open-type Genset | mm | 1880 X 830 X 1350 |
| Weight For Open-type Genset | kg | 755 |
| Dimension For Soundproof Genset | mm | 2300 X 900 X 1250 |
| Weight For Soundproof Generator | kg | 1005 |
| Noise Level for Soundproof Generator at 7M | dBA | 72 |
| Battery | Two of Free Maintenance Battery |
| Engine Specification |
| Engine Manufacturer | Dongfeng Cummins Engine Co., Ltd. |
| Engine Brand | Cummins |
| Engine Model | 4BTA3.9-G2 |
| No. of Cylinder | 4 Cylinder in line |
| Aspiration | Turbocharged & Aftercooled |
| Governor | Electric |
| Engine Max. Output Power | kW | 55 |
| Displacement | L | 3.9 |
| Compression Ratio | 17.3 : 1 |
| Starting Voltage | V | 24 |
| Bore | mm | 102 |
| Stroke | mm | 120 |
| Lubrication Oil Capacity | L | 11 |
| Intake Air Flow | M3/Min | 4.13 |
| Fuel Consumption at 100% Load | L/H | 15 |
| Alternator Specification |
| Alternator Manufacturer | Fuzhou Hosem Power Co., Ltd. |
| Alternator Model | ASF224D |
| Alternator Brand | Hosem |
| Rate Output | kVA | 50 |
| Frequency | Hz | 50Hz |
| Altitude | M | ≤1000 |
| Insulation | Class H |
| Phase | 3 Phase |
| Working Temperature without power decrease | ≤40℃ |
| Working Altitude without power decrease | ≤1000m |
| Automatic Voltage Regulation | SX460 |
| Protection Grade | IP23 |
| Alternator for optional | Leroy Somer, Marathon, Mecc Alte and Hosem Brushless alternator for
optional |
|
| Control Panel Specification |
| Controller Brand | Deepsea |
| Controller Model | DSE7320 |
| Breaker Brand | Delixi |
| Breaker Capacity (A) | 80 |
| Battery Charger | Smartgen Model BAC06A |
| Emergency Stop Button | Supply |
| Automatic Mains Fail (AMF) | Supply |
| Fuel Level | Supply |
| Automatic Transfer Switch | ATS as optional part |
| The control panel supply the full protection with alarm and
shutdown of the diesel generator include Start-up fault (generator
set shutdown), High coolant temperature (alarm and generator set
shutdown), Low oil pressure (alarm and generator set shutdown), Low
fuel level (alarm), Low cooling fluid level alarm (as optional),
Overload (alarm and generator set shutdown), Battery voltage high
(alarm). |
|
|
| Optional controller: Each model of Deepsea, Smartgen, ComAp brand
controller. |
Applications
The 40kW 50kVA Cummins Diesel Generator is ideal for a wide range
of power applications, including:
- Industrial Use – Factories, workshops, and warehouses requiring
stable, continuous power.
- Commercial Buildings – Offices, hotels, schools, and hospitals
needing quiet and efficient backup systems.
- Residential Backup – Homes and villas that require reliable standby
power with minimal noise.
- Construction Projects – Power source for field operations, site
lighting, and heavy tools.
- Data Centers & Telecom – Ensures continuous power for IT systems
and network operations.
FAQ– Installation & Setup for the 40 kW 50kVA Cummins Soundproof
Generator
Q1: What are the essential foundation and clearance requirements
for installing this generator?
A1: Before installation, ensure the generator room has a solid 200
mm thick concrete slab on compacted ground. Maintain at least 1
meter of clearance around the generator for ventilation and
maintenance. The radiator side must have appropriate ventilation
windows sized according to the radiator core area.
Q2: What ventilation and ambient temperature conditions should I
ensure?
A2: Adequate ventilation is critical — the room should allow free
airflow with the outlet area 1.2 – 1.5 times the radiator’s
effective surface. Ambient temperature should not exceed 40°C to
avoid derating and ensure efficiency for the generator set.
Q3: What checks should be done before the generator is loaded for
the first time?
A3: After mechanical installation and wiring, perform a no-load
test: switch to “Manual”, start the unit, observe voltage,
frequency, and oil pressure. Confirm everything is within spec
before connecting to full load.
Want to ensure your diesel generator is installed safely and
performs at its best?
Click here to read our detailed guide: Diesel Generator Set
Installation Requirements and Procedure to learn essential setup
tips and expert recommendations from Hosem Power.
Looking for a quiet, efficient, and durable diesel generator for
your business or home?
The Soundproof 40kW 50kVA Diesel Generator Powered by Reliable
Cummins Engine delivers dependable power, low fuel costs, and long
service life—your ideal energy solution for any environment.
Want to know more about Cummins generator sets?
