The BIFA Three Phase 4 Pole 32-degree 500mm axial fan is built for commercial ventilation applications. It is available in sizes ranging from 250mm to 1000mm and features IP55-protected motors with Class ‘F’ insulation for durable and dependable performance. The fan supports ambient temperatures up to 200°C, with speed adjustable via transformer or inverter when the surrounding air temperature does not exceed 60°C. Fitted with an IP55-rated terminal box, it is suitable for environments with relative humidity levels up to 95%. Manufactured in accordance with BS EN ISO 9001:2015, the fan’s performance has been tested to BS 848 parts 1 and 2 and ISO 5801 standards. The BIFA503432 model comes with a 2‑year guarantee, ensuring efficient and reliable commercial ventilation.