The LB Fans LCA503416 is a high-performance long cased axial fan designed for commercial ventilation applications. It features a three-phase 4‑pole motor with Class ‘F’ insulation and IP55 protection for reliable operation. The 500mm polypropylene impeller is factory-set at a 16° blade pitch to ensure optimal airflow. Suitable for environments with ambient temperatures up to 54˚C and relative humidity levels up to 95% R.H., this fan supports speed control via transformer or inverter. Manufactured to BS EN ISO 9001:2015 standards and tested to BS 848 parts 1, 2 and ISO 5801, it includes an IP55 terminal box and comes with a 2‑year guarantee.