The LB Fans LCA403210 is a robust long cased axial fan built for demanding commercial ventilation applications. It is equipped with a three-phase, 2‑pole motor protected to IP55 with Class ‘F’ insulation, capable of operating in ambient temperatures up to 54˚C. Many models in this range can be speed controlled using either a transformer or inverter, offering flexibility in performance. The fan includes an IP55-rated terminal box and an adjustable factory-set polypropylene impeller. Designed to handle relative humidity levels of up to 95%, it is manufactured under BS EN ISO 9001:2015 quality standards and performance tested to BS 848 parts 1 and 2 as well as ISO 5801. Backed by a 2‑year guarantee, the LCA403210 delivers reliable and efficient airflow for commercial ventilation requirements.