Helios Fans EVK 315

The Helios EVK 315 is designed to cover supply and extract air openings efficiently. It features a frame, blades, and actuators made of light grey plastic, with the actuator housing rated IP55, making it suitable for outdoor installation. The number of louvres varies according to the size to accommodate different ventilation requirements. The unit offers automatic control in coordination with the fan; a local changeover switch activates the servomotor, which in turn controls the fan circuit via a limit switch. The device includes a fully wired signal box and a 1.5‑meter connection cable for easy setup. It operates on 230 V, 50/60 Hz, with a maximum supply air flow velocity of 6 m/​s and a maximum exhaust air flow rate of 8 m/​s, ensuring reliable ventilation performance.