The LB Fans LCA451428 long cased axial fan is engineered for dependable performance in commercial ventilation systems. This single-phase, 4‑pole fan features a motor protected to IP55 with Class ‘F’ insulation, suitable for ambient temperatures up to 54˚C. Its 450mm polypropylene impeller, factory-set at a 28° pitch, is adjustable and compatible with speed control via transformer or inverter for optimal airflow. Built for environments with up to 95% relative humidity, it includes an IP55 terminal box and is manufactured to BS EN ISO 9001:2015 standards. Performance testing to BS 848 parts 1, 2 and ISO 5801 ensures consistent efficiency and reliability. A 2‑year guarantee underlines its quality and durability.