Helios Fans DV EC 400 A Eco

The Helios DV EC 400 A Eco is a roof fan designed with EC technology to provide efficient and adaptable ventilation. It features an aerodynamically optimized housing made from durable grey polypropylene, designed for horizontal installation with diagonal air discharge. The fan operates within a temperature range of ‑30 to +60 °C and includes integrated guide vanes to enhance airflow efficiency.

This model is equipped with a dynamically balanced mixed flow impeller constructed from aluminium. Its motor-impeller unit ensures smooth operation with reduced vibration and noise.

Powered by an electronically commutated DC external rotor motor with ball bearings, the fan is suited for continuous use while maintaining high efficiency, including under controlled speed conditions. The motor requires no maintenance and is designed to suppress radio interference. The fan supports stepless speed adjustment using the optional P..10 speed potentiometer and can be integrated with the EUR EC universal control system for regulation based on differential pressure, temperature, or airflow velocity.