The LB Fans LCA503216 is a high-performance long cased axial fan, designed to deliver reliable airflow in commercial ventilation systems. Built with a three-phase 2‑pole motor protected to IP55 and Class ‘F’ insulation, this fan ensures long-lasting durability under demanding conditions. It features a factory-set polypropylene impeller with a 500mm diameter and a 16° blade pitch, providing efficient and consistent airflow. Capable of operating in environments with ambient temperatures up to 54˚C and relative humidity levels of 95% R.H, the fan supports speed control via transformer or inverter for flexible operation. Manufactured in line with BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1, 2 and ISO 5801, the LCA503216 includes an IP55 terminal box and comes with a 2‑year guarantee, making it a dependable choice for commercial applications.