The Elta SMB500/4 – 3AC is a high-performance 500mm mixed flow box fan built for demanding ventilation tasks. Equipped with a 4‑pole, three-phase AC motor, it achieves air volume flow rates up to 4.07 m³/s and handles static pressures as high as 796 Pa. Designed for durability and efficiency, this fan operates effectively at temperatures up to +60°C, making it ideal for ventilation in commercial and industrial environments. It is part of a six-size range, offering flexible solutions for various airflow requirements.