The BIFA Three Phase 4 Pole 20-degree 560mm axial fan is designed for commercial ventilation systems. It is available in sizes ranging from 250mm to 1000mm and features motors with IP55 protection and Class ‘F’ insulation, ensuring dependable, long-lasting operation. The fan can operate in ambient temperatures up to 200°C, with speed adjustable via transformer or inverter when the surrounding air temperature does not exceed 60°C. It includes an IP55-rated terminal box and 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 BIFA563420 model comes with a 2‑year guarantee, providing reliable and efficient commercial ventilation.