The Compact 25kW 3 Phase Soundproof Diesel Generator powered by a reliable SDEC engine is designed to deliver stable and dependable electricity for small businesses, commercial facilities, and light industrial applications. Combining a compact footprint with robust performance, this generator is an ideal backup power solution for locations where installation space is limited but reliable power is essential.
Engineered with a premium alternator and an advanced digital control system, the generator provides consistent three-phase power, excellent voltage regulation, and comprehensive protection features. Its soundproof enclosure minimizes operating noise, making it suitable for offices, retail stores, clinics, schools, and other environments where quiet operation is important.
A compact 25kW diesel generator offers the perfect combination of efficiency, reliability, and space-saving design. Powered by a proven SDEC engine, it delivers dependable backup power while helping reduce fuel consumption and maintenance costs. Its three-phase output supports a wide range of commercial equipment and electrical systems, making it an excellent choice for businesses that need uninterrupted power without investing in oversized equipment.
| Generator Set Specification | ||
| Model | A-SH34S | |
| Max. Power | kVA | 34.0 |
| kW | 27.2 | |
| Rate Power | kVA | 31.0 |
| kW | 25.0 | |
| Frequency | Hz | 50 |
| Rate Voltage | V | 400/230 |
| Rate Current | A | 45.1 |
| Dimension For Open-type Genset | mm | 1820 X 830 X 1350 |
| Weight For Open-type Genset | kg | 670 |
| Dimension For Soundproof Genset | mm | 2300 X 960 X 1150 |
| Weight For Soundproof Generator | kg | 870 |
| Noise Level at 7 Meters | dBA | 65 |
| Fuel Tank Capacity | Liters | 80 |
| Battery | One of Free Maintenance Battery | |
| Engine Specification | ||
| Engine Manufacturer | Shanghai Diesel Engine Co., Ltd. | |
| Engine Brand | SDEC | |
| Engine Model | 4Z3.2-G11 | |
| No. of Cylinder | 4 Cylinder in line | |
| Aspiration | Naturally Aspirated | |
| Governor | Mechanical | |
| Engine Max. Output Power | kW | 35 |
| Displacement | L | 3.200 |
| Starting Voltage | V | 12 |
| Bore | mm | 98 |
| Stroke | mm | 105 |
| Lubrication Oil Capacity | L | 8-10 |
| Compression Ratio | 18 : 1 | |
| Intake Air Flow | M3/Min | 3.34 |
| Fuel Consumption at 100% Load | L/H | 8.6 |

| Alternator Specification | ||
| Alternator Manufacturer | Fuzhou Hosem Power Co., Ltd. | |
| Alternator Model | ASF 184 G | |
| Alternator Brand | Hosem | |
| Rate Output | kVA | 31 |
| Frequency | Hz | 50Hz |
| Current | A | 44.7 |
| 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 | 63 |
| 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. | ||

Built for dependable performance and long service life under daily operating conditions.
Small footprint allows easy installation in commercial buildings, equipment rooms, and limited spaces.
Provides consistent voltage and frequency for office equipment, pumps, HVAC systems, refrigeration units, and light industrial machinery.
Reduces operating noise while protecting internal components from dust, rain, and outdoor environments.
Optional ATS (Automatic Transfer Switch), trailer-mounted configuration, larger fuel tanks, remote monitoring, and customized voltage or frequency are available.
The Compact 25kW 3 Phase Soundproof Diesel Generator is widely used by small businesses and commercial users requiring reliable backup electricity. It is an excellent choice for retail stores, restaurants, cafés, offices, workshops, warehouses, and service centers, ensuring essential operations continue during unexpected power outages. The generator can support lighting systems, air conditioning units, refrigeration equipment, point-of-sale systems, computers, security systems, and communication devices, helping businesses minimize downtime and protect daily operations.
In addition to commercial applications, this generator is well suited for clinics, schools, farms, small manufacturing facilities, and construction sites where stable three-phase power is required. It can also serve as a dependable power source in remote locations without reliable grid access. Thanks to its compact design and soundproof enclosure, the generator is easy to install in urban environments and areas with strict noise regulations. Combining dependable SDEC engine performance and low maintenance requirements, it provides a practical and cost-effective power solution for a wide range of users.
Q1: What businesses can benefit from a 25kW diesel generator?
A: A 25kW generator is ideal for small businesses, retail stores, restaurants, offices, workshops, clinics, farms, and warehouses that require reliable backup power.
Q2: Is the generator suitable for three-phase equipment?
A: Yes. The generator provides stable three-phase power, making it suitable for commercial machinery, pumps, HVAC systems, compressors, and other three-phase electrical equipment.
Q3: How quiet is the soundproof generator?
A: The soundproof enclosure significantly reduces operating noise, making it suitable for commercial districts, residential neighborhoods, and other noise-sensitive environments.
Q4: Can the generator start automatically during a power outage?
A: Yes. An optional ATS (Automatic Transfer Switch) enables automatic startup and seamless power transfer when the utility supply is interrupted.
Q5: Can the generator be customized?
A: Yes. We offer various customization options, including soundproof canopies, ATS systems, trailer-mounted designs, remote monitoring, larger fuel tanks, and customized voltage or frequency configurations.
Looking for a compact 25kW 3 phase soundproof diesel generator powered by a reliable SDEC engine?