The Helios Fans ITEC 125 is a high-performance twin fan unit designed for duct-mounted installations requiring continuous airflow and built-in redundancy. Featuring robust galvanized steel construction, the unit includes 100% standby operation and standard change-over panels with duty-sharing capabilities for reliable ventilation. The acoustically lined housing ensures low-noise performance, while access panels on the top or bottom provide flexible servicing. Equipped with side mounting rails for straightforward installation, it is compatible with Helios ACSW EC change-over panels and the PA10 potentiometer for variable speed control. Ideal for environments where consistent air movement and quiet operation are essential.