The LB Fans LCA353212 is a long cased axial fan engineered for commercial ventilation. It features a 350mm adjustable polypropylene impeller set at 12° and operates with a three-phase, 2‑pole motor. The motor has IP55 protection and Class F insulation, allowing operation in ambient temperatures up to 54˚C. Most models in this series support speed adjustment via a transformer or inverter. The fan is equipped with an IP55-rated terminal box and is suitable for relative humidity levels up to 95%. Manufactured to BS EN ISO 9001:2015 standards, its performance is tested according to BS 848 parts 1, 2 and ISO 5801. This model comes with a 2‑year guarantee.