25kVA Soundproof Diesel Generator Powered by Quanchai Engine | Hosem Power
The 25kVA Soundproof Diesel Generator Powered by Quanchai Engine (Model A-QC28S) is designed to deliver reliable, efficient, and quiet power for residential, commercial, and light industrial applications. Powered by the Quanchai QC498D engine, this generator provides 20kW prime power and 22kW standby power, ensuring stable electricity in areas with unstable grid supply or during power outages.
With its compact soundproof canopy and easy maintenance, the A-QC28S is a practical and cost-effective power solution for small businesses, offices, schools, and residential buildings.
Key Features
- Stable Power Output – 25kVA / 20kW prime power and 28kVA / 22kW standby power at 50Hz, suitable for 3-phase 400/230V systems.
- Low Noise Operation – Soundproof design with a noise level of only 70dBA @ 7m, ideal for noise-sensitive environments.
- Reliable Engine Performance – Quanchai 4-cylinder diesel engine with mechanical governor, providing smooth and stable power.
- Durable Alternator – Hosem ASF184FS alternator with Class H insulation, IP23 protection, and AVR SX460 for stable voltage output.
- Optional Upgrades – ATS (Automatic Transfer Switch) and alternative alternators (Leroy Somer, Marathon, Mecc Alte) available upon request.
Specification of 25kVA Quanchai Diesel Generator Set
| Generator Set Specification |
| Model |
A-QC28S |
| Max. Power |
kVA |
28 |
| kW |
22 |
| Rate Power |
kVA |
25 |
| kW |
20 |
| Frequency |
Hz |
50 |
| Rate Voltage |
V |
400/230 |
| Rate Current |
A |
36.1 |
| Dimension For Open-type Genset |
mm |
1350 X 750 X 1050 |
| Weight For Open-type Genset |
kg |
570 |
| Dimension For Soundproof Genset |
mm |
1800 X 850 X 1200 |
| Weight For Soundproof Generator |
kg |
880 |
| Noise Level at 7 Meters |
dBA |
70 |
| Fuel Tank Capacity |
Liters |
75 |
| Battery |
One of Free Maintenance Battery |
| Engine Specification |
| Engine Manufacturer |
Anhui Quanchai Engine Co., Ltd. |
| Engine Brand |
Quanchai |
| Engine Model |
QC498D |
| No. of Cylinder |
4 Cylinder in line |
| Aspiration |
Naturally Aspirated |
| Governor |
Mechanical |
| Engine Max. Output Power |
kW |
25 |
| Displacement |
L |
3.200 |
| Starting Voltage |
V |
12 |
| Bore |
mm |
98 |
| Stroke |
mm |
105 |
| Lubrication Oil Capacity |
L |
6.8 |
| Compression Ratio |
18 : 1 |
| Intake Air Flow |
M3/Min |
2.45 |
| Fuel Consumption at 100% Load |
L |
7.3 |
| Alternator Specification |
| Alternator Manufacturer |
Fuzhou Hosem Power Co., Ltd. |
| Alternator Model |
ASF184FS |
| Alternator Brand |
Hosem |
| Rate Output |
kVA |
25 |
| Frequency |
Hz |
50Hz |
| Altitude |
M |
≤1000 |
| Insulation |
Class H |
| Voltage Regulation |
SX460 |
| Protection Grade |
IP23 |
| Working Temperature without Output Decrease |
≤40℃ |
| 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 |
HGM6120N |
| 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. |
Applications
The A-QC28S 25kVA Quanchai Diesel Generator is ideal for:
- Residential Backup Power – Houses, villas, apartments
- Commercial Use – Shops, offices, schools, restaurants
- Light Industrial Sites – Small workshops, farms, warehouses
- Emergency Standby – Hospitals, telecom stations, backup systems
FAQ – 25kVA Quanchai Diesel Generator
Q1: Is this generator suitable for residential areas?
A1: Yes. With low noise (70dBA @ 7m) and a compact soundproof design, it’s perfect for residential and commercial buildings.
Q2: What protection systems are included?
A2: The generator has full protection, including alarms and automatic shutdown for high coolant temperature, low oil pressure, low fuel, and overload.
Q3: Can I add ATS for automatic switching?
A3: Yes. An ATS (Automatic Transfer Switch) is available as an optional accessory for seamless power transfer.
Contact Hosem Power
Looking for a quiet, efficient, and reliable small generator? The 25kVA Soundproof Diesel Generator Powered by Quanchai Engine is a cost-effective power solution for homes, businesses, and light industries.
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