The LB Fans LCA503210 is a heavy-duty long cased axial fan designed for efficient airflow in commercial ventilation systems. It features a three-phase 2‑pole motor with IP55 protection and Class ‘F’ insulation, ensuring long-lasting performance and reliability. Fitted with a factory-set 500mm polypropylene impeller at a 10° pitch, this model is capable of delivering consistent airflow in demanding environments. The fan is suitable for ambient temperatures up to 54˚C and relative humidity up to 95% R.H. Speed control can be achieved through either transformer or inverter operation. Built to BS EN ISO 9001:2015 standards and tested in accordance with BS 848 parts 1, 2 and ISO 5801, the unit also comes with an IP55 terminal box and a 2‑year guarantee, making it a trusted choice for commercial ventilation applications.