The LB Fans LCA501426 is a high-performance 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 operation under demanding conditions. The 500mm polypropylene impeller is factory-set at a 26° blade pitch for optimal airflow and efficiency. Suitable for ambient temperatures up to 54˚C and relative humidity levels up to 95% R.H, the fan can be speed-controlled via transformer or inverter. Manufactured to BS EN ISO 9001:2015 and performance tested to BS 848 parts 1, 2 and ISO 5801 standards, the LCA501426 includes an IP55 terminal box and comes with a 2‑year guarantee, providing dependable and versatile ventilation for commercial spaces.