The HELI VDD 315/4 is a vertically exhausting roof fan designed for efficient ventilation in various applications. With a seawater-resistant aluminum housing and a newly developed high-performance radial impeller, this fan offers high efficiency and durability. The fan is equipped with a speed-controllable external rotor motor, constructed in a closed design with an IP 55 protection rating. This ensures reliable functionality under various conditions. Integrated safety features, such as the intrusion protection and safety grille, comply with current safety standards. The HELI VDD 315/4 is ideal for applications requiring high air circulation and is particularly suitable for use in industrial and commercial environments.

• Efficiency-optimized aluminum housing for high efficiency
• High-performance radial impeller with backward-curved blades
• Speed-controllable external rotor motor for flexible applications
• Integrated intrusion protection and safety grille according to DIN EN ISO 13857
• Maintenance-free and interference-free operation with IP 65 revision switch.