The LB Fans LCA353218 is a long cased axial fan engineered for commercial ventilation. It features a 350mm adjustable polypropylene impeller set at 18° and operates with a three-phase, 2‑pole motor. The motor is IP55 protected and uses Class F insulation, suitable for ambient temperatures up to 54˚C. Most models in this series allow speed adjustment via a transformer or inverter. The fan comes with an IP55-rated terminal box and is suitable for relative humidity levels up to 95%. Manufactured in accordance with BS EN ISO 9001:2015, its performance is tested to BS 848 parts 1, 2 and ISO 5801 standards. This model comes with a 2‑year guarantee.