The LB Fans LCA403428 long cased axial fan is engineered for efficient and reliable commercial ventilation. This three-phase, 4‑pole fan is equipped with a Class ‘F’ insulated motor protected to IP55, capable of operating in ambient temperatures up to 54˚C. The adjustable polypropylene impeller is factory set to a 28° pitch, with speed control available via transformer or inverter. Designed to handle environments with up to 95% relative humidity, it features an IP55 terminal box for secure electrical connections. Manufactured in compliance with BS EN ISO 9001:2015 and performance-tested to BS 848 parts 1, 2 and ISO 5801, the LCA403428 ensures dependable operation and comes with a 2‑year guarantee.