The Elta SQU50/350-EC‑1 is a compact centrifugal box fan from the Qube series, designed to deliver efficient and quiet ventilation in space-constrained commercial and industrial applications. With a 500mm box size and powered by a single-phase EC motor, it offers energy-saving operation and smooth airflow control. Its construction includes interchangeable double-skinned panels and painted aluminium corners, enabling flexible configuration for straight-through or 90° outlet airflow. The unit is suitable for ambient airstream temperatures up to 50°C (or 40°C with 3‑phase EC models). The SQU50/350-EC‑1 is a versatile and reliable solution for installations requiring compact, low-noise, and adaptable ventilation.