The Elta STDL150-1EC‑R is a compact 150mm twin centrifugal box fan designed for efficient and quiet ventilation. Powered by an EC motor, it belongs to a range of seven standard sizes from 125mm to 500mm. The unit can deliver airflow volumes up to 1.740 m³/s and achieve static pressures up to 730 Pa. It is suitable for environments with temperatures up to +60°C. A redesigned casing improves airflow efficiency and reduces specific fan power. The fan includes an auto changeover panel and features internal acoustic lining to reduce breakout noise. Optional spigot types are available for added installation flexibility. The STDL150-1EC‑R is engineered for low-energy, high-performance air movement.