C20 Single chain actuator – natural ventilation
- Brand

- TypeAutomatic smoke exhaust window
The Electric C20 actuator has a double-link articulated chain in a compact casing, with accessories for top/bottom hung windows.
Overview of the C20 single chain actuator – natural ventilation (Italy)
The C20 single chain actuator is a premium product from the TOPP brand – Italy, specifically designed for top-hung and bottom-hung window systems. Equipped with a compact yet powerful smoke ventilation window motor, the product ensures safe operation, aesthetic appeal, and outstanding durability, meeting the European CE standard.
This product is widely applied in modern buildings such as high-rise apartments, shopping centers, hospitals, factories, and schools. It not only provides reliable smoke exhaust in case of fire but also maintains natural daily ventilation.
Key features of the C20 smoke ventilation window
- Compact and aesthetic motor design: The C20 electric actuator integrates the chain neatly inside a slim housing, offering elegance and easy installation for various architectural styles.
- Powerful performance: Provides a maximum thrust of 300N, suitable for windows of different sizes.
- Flexible stroke adjustment: The smoke ventilation window motor allows selectable opening strokes of 240mm or 360mm, easily adjusted via an external knob.
- Integrated double-link chain system: Enhances durability, ensuring stable and safe operation in all situations.
- Wide compatibility: Supplied with installation accessories for both top-hung and bottom-hung windows.
- Flexible voltage options: Supports both 230VAC 50Hz and 24VDC, making it adaptable to various building systems.
- Absolute safety assurance: Closing path controlled by absorption current, protecting the motor and extending the product lifespan.
- European CE certification: Guarantee of international quality, safety, and compliance standards.
Practical applications
- Office buildings and high-rise apartments: Automatic window opening/closing helps regulate airflow and reduce central air conditioning load.
- Shopping centers, supermarkets, airports: Enables rapid smoke extraction in case of fire, ensuring the safety of thousands of people.
- Hospitals and schools: Provides fresh air, minimizes bacteria, and maintains a safe and healthy indoor environment.
- Factories and warehouses: Supports natural ventilation, reduces heat, and saves energy.
Contact for consultation & quotation
With over 20 years of experience in automatic doors and building safety solutions, Sonha Auto is the official distributor and installer of TOPP window systems, including the C20 Single Chain Actuator.
We are committed to:
- Genuine TOPP – Italy products with full certificates of origin.
- A highly skilled engineering team, providing tailored solutions for each project.
- Professional installation, warranty, and maintenance services with 24/7 support.
- Transparent, competitive pricing optimized for investors.
If you are looking for a high-quality smoke ventilation window system or window motor solution, let Sonha Auto be your trusted partner.
- 📞 Hotline: 093 645 6008
- 📧 Email: sales@sonha.com
- 🌐 Website: https://sonha.com
| Model | C20 230V | C20 24V |
|---|---|---|
| Power voltage | 230V ~ 50Hz | min 21V ~ max 28V |
| Max applicable load in thrust | 300 N | |
| Max applicable load in traction | 200 N | |
| Strokes (selectable at any time) | 240 e 360 mm | |
| Absorbed current | 0,12 A | 0,43 A |
| Idle translation speed | 8 mm/s | 7,5 mm/s |
| Duration of the idle stroke | 46 s | 48 s |
| Double electrical insulation | yes | |
| Service type | S2 di 4 min | |
| Operating temperature | -5°C + 50°C | |
| Protection Class | IP 30 | |
| Window mounting adjustment | not necessary | |
| Parallel connection option | yes | |
| Stroke end | Electronic in opening, by amperometric absorption in closing | |
| Dimensions | 362x48x34 mm | |
| Weight * | 0,970 kg | 0,940 kg |





