50Hz 25kVA Soundproof Diesel Generator with Reliable SDEC Engine | Hosem Power
50Hz 25kVA Soundproof Diesel Generator with Reliable SDEC Engine | Hosem Power
The 50Hz 25kVA Soundproof Diesel Generator with Reliable SDEC Engine is a compact, efficient, and low-noise power solution designed for residential, commercial, and light industrial applications. Powered by a dependable SDEC diesel engine, this generator delivers stable output, good fuel economy, and long service life, making it an ideal choice for both standby backup and prime power use.
To meet noise control requirements, the generator is enclosed in a soundproof canopy featuring acoustic insulation and an optimized airflow design. This significantly reduces operating noise while maintaining proper cooling performance, allowing safe installation in urban areas, offices, schools, and residential communities.
Built under Hosem Power’s strict quality control system, every unit is factory-tested to ensure reliable operation, easy maintenance, and long-term durability—providing users with a cost-effective and worry-free power solution.
Key Features
- Reliable SDEC Engine
Proven performance with stable power output
- Soundproof Design
Acoustic canopy with noise-absorbing materials and industrial muffler
- 50Hz Stable Output
Suitable for regions requiring 50Hz power systems
- Compact & Space-Saving
Easy to install in limited spaces and convenient to transport
- Smart Control System
Digital controller with monitoring, alarms, and protection functions
- Easy Maintenance
Wide service access doors simplify inspection and routine servicing
Specification of 50Hz 25kVA Soundproof Diesel Generator with Reliable SDEC Engine
| Generator Set Specification | ||
| Model | A-SH28S | |
| Max. Power | kVA | 28.0 |
| kW | 22.4 | |
| Rate Power | kVA | 25.5 |
| kW | 20.4 | |
| Frequency | Hz | 50 |
| Rate Voltage | V | 400/230 |
| Rate Current | A | 36.7 |
| Dimension For Open-type Genset | mm | 0 |
| Weight For Open-type Genset | kg | 0 |
| Dimension For Soundproof Genset | mm | 2050 X 860 X 1100 |
| Weight For Soundproof Generator | kg | 800 |
| Noise Level at 7 Meters | dBA | 72 |
| Fuel Tank Capacity | Liters | 60 |
| Battery | One of Free Maintenance Battery | |
| Engine Specification | ||
| Engine Manufacturer | Shanghai Diesel Engine Co., Ltd. | |
| Engine Brand | SDEC | |
| Engine Model | 4Z3.0-G21 | |
| No. of Cylinder | 4 Cylinder in line | |
| Aspiration | Natural Aspirated | |
| Governor | Electric | |
| Engine Max. Output Power | kW | 33 |
| Displacement | L | 3.000 |
| Starting Voltage | V | 12 |
| Bore | mm | 95 |
| Stroke | mm | 105 |
| Lubrication Oil Capacity | L | 8-10 |
| Compression Ratio | 18 : 1 | |
| Intake Air Flow | M3/Min | 2.7 |
| Fuel Consumption at 100% Load | L/H | 5.8 |
| Alternator Specification | ||
| Alternator Manufacturer | Fuzhou Hosem Power Co., Ltd. | |
| Alternator Model | ASF 184FS | |
| Alternator Brand | Hosem | |
| Rate Output | kVA | 25 |
| Frequency | Hz | 50Hz |
| Current | A | 36.1 |
| Insulation | Class H | |
| Voltage Regulation | SX460 | |
| Protection Grade | IP23 | |
| Working Temperature without Output Decrease | ≤1000m | |
| Phase | 3 Phase | |
| Temperature Rise | 125 Degree Celsius | |
| Alternator for optional | Leroy Somer, Marathon, Mecc Alte and Hosem Brushless alternator for optional | |
| Control Panel Specification | ||
| Controller Brand | Smartgen | |
| Controller Model | HGM6120 | |
| Breaker Brand | Delixi | |
| Breaker Capacity | A | 100 |
| Battery Charger | Smartgen Model BAC06A | |
| Emergency Stop Button | Supply | |
| Automatic Mains Fail (AMF) | Supply | |
| Fuel Level | Supply | |
| Automatic Transfer Switch | ATS as optional part | |
| Mains Monitor | Supply with AMF Function | |
| 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. | ||
Typical Applications
- Home and villa backup power
- Small offices and retail shops
- Schools and clinics
- Telecom base stations
- Light construction sites
- Farms and small workshops
FAQ – 50Hz 25kVA Soundproof Diesel Generator with Reliable SDEC Engine
Q1: Is this 25kVA generator suitable for residential use?
A1: Yes. Thanks to its soundproof canopy and low operating noise, this generator is well suited for residential areas, villas, and small communities.
Q2: Can it support automatic power switching during outages?
A2: Yes. The generator can be equipped with an ATS (Automatic Transfer Switch), allowing it to start automatically when grid power fails and stop when power is restored.
Q3: What maintenance does the generator require?
A3: Routine maintenance includes oil changes, filter replacement, and basic inspections. The soundproof canopy is designed with easy-access panels to simplify servicing.
Q4: What warranty does Hosem Power provide?
A4: Hosem Power offers a one-year or 1,000 running hours warranty (whichever comes first), covering manufacturing defects. Free replacement spare parts are provided during the warranty period.
Looking for a quiet, reliable, and cost-effective 25kVA diesel generator for your project?
Contact Hosem Power today for a tailored quotation and professional technical support.
Interested in exploring more SDEC-powered generator sets?
Click here to view additional SDEC diesel generator models.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

