The LB Fans Long Cased Axial Fan LCA1003420 is engineered for reliable performance in commercial ventilation systems, equipped with a three-phase 4‑pole motor set at a 20° pitch. The motor is IP55 protected and built with Class F insulation, capable of operating in ambient temperatures up to 54°C. Many models within the range can be speed controlled using either a transformer or an inverter, providing flexibility in airflow management. The fan comes with an IP55-rated terminal box and a polypropylene impeller that is factory set but adjustable as required. Designed for demanding conditions, it is suitable for environments with relative humidity levels up to 95%. Manufactured to BS EN ISO 9001:2015 standards, performance is tested in accordance with BS 848 Parts 1 & 2 and ISO 5801. Each unit is backed by a 2‑year guarantee for long-term dependability.