The BIFA Three Phase 4 Pole 26-degree 560mm axial fan is engineered for commercial ventilation applications. Available in sizes from 250mm to 1000mm, it features motors with IP55 protection and Class ‘F’ insulation, ensuring dependable long-term performance. The fan operates in ambient temperatures up to 200°C, with speed adjustable via transformer or inverter when the surrounding air temperature does not exceed 60°C. Equipped with an IP55-rated terminal box, it is suitable for environments with relative humidity levels up to 95%. Manufactured to BS EN ISO 9001:2015 standards, the fan’s performance has been tested to BS 848 parts 1 and 2 and ISO 5801. The BIFA563426 model includes a 2‑year guarantee, providing efficient and reliable commercial ventilation.