The LB Fans LCA503412 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, ensuring reliable and durable operation. The 500mm polypropylene impeller is factory-set at a 12° blade pitch for optimized airflow. Suitable for ambient temperatures up to 54˚C and relative humidity levels up to 95% R.H., the fan’s speed can be controlled via transformer or inverter. Manufactured to BS EN ISO 9001:2015 and tested to BS 848 parts 1, 2 and ISO 5801, it includes an IP55 terminal box and comes with a 2‑year guarantee.