The LB Fans LCA501420 is a robust long cased axial fan designed for commercial ventilation systems. It features a single-phase 4‑pole motor with IP55 protection and Class ‘F’ insulation, ensuring reliable performance in demanding conditions. The 500mm polypropylene impeller is factory-set at a 20° blade pitch to optimize airflow and efficiency. Suitable for maximum ambient temperatures up to 54˚C and relative humidity levels up to 95% R.H, this fan provides consistent ventilation performance. Most models allow speed control via transformer or inverter. Manufactured to BS EN ISO 9001:2015 and tested to BS 848 parts 1, 2 and ISO 5801, the LCA501420 includes an IP55 terminal box and is backed by a 2‑year guarantee, making it a dependable choice for commercial applications.