The LB Fans LCA351412 is a long cased axial fan designed for commercial ventilation applications. It features a 350mm adjustable polypropylene impeller and operates on a single-phase, 4‑pole motor. The motor is protected to IP55 standards and uses Class F insulation, allowing operation in environments up to 54˚C ambient temperature. Many models within this range can have their speed adjusted via a transformer or inverter. The fan includes an IP55-rated terminal box and is suitable for relative humidity up to 95%. Manufactured to BS EN ISO 9001:2015, the fan’s performance is verified according to BS 848 parts 1, 2 and ISO 5801 standards. The product comes with a 2‑year guarantee.