The LB Fans Long Cased Axial Fan LCA1253434 is designed for heavy-duty commercial ventilation, featuring a three-phase 4‑pole motor with a 34° pitch. The motor is IP55 protected and insulated to Class F, ensuring reliable performance in ambient temperatures up to 54°C. Most models are speed controllable via transformer or inverter, providing flexible airflow management. The fan comes with an IP55-rated terminal box and a polypropylene impeller that is factory set but fully adjustable. Suitable for environments with relative humidity levels up to 95%, this unit is manufactured in compliance with BS EN ISO 9001:2015 standards, with performance tested to BS 848 Parts 1 & 2 and ISO 5801. Each model includes a 2‑year guarantee, ensuring long-term reliability and durability.