The Elta SSDL250-1EC is a centrifugal box fan from the Singleflow series, designed for high-performance and low-noise ventilation in external mounting setups. Featuring a 250mm spigot and a 1‑phase EC motor, this fan supports variable speed control and delivers energy-efficient airflow. It achieves air volume flow rates up to 1.820 m³/s and handles static pressures up to 910 Pa, making it suitable for a wide range of applications. The fan is acoustically lined as standard to minimize noise and is capable of operating in temperatures up to +60°C. Built for external installation, it can also be configured with optional spigot types and a terminal box to suit specific system requirements. The SSDL250-1EC is a reliable and flexible solution for compact, noise-sensitive ventilation environments.