The BIFA Three Phase 4 Pole 34-degree 500mm axial fan is engineered for commercial ventilation applications. Available in sizes from 250mm to 1000mm, it features IP55-protected motors with Class ‘F’ insulation, ensuring reliable and long-term performance. The fan can operate in ambient temperatures up to 200°C, with speed controllable 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 relative humidity levels up to 95%. Manufactured in compliance with BS EN ISO 9001:2015, its performance has been tested to BS 848 parts 1 and 2 and ISO 5801 standards. The BIFA503434 model comes with a 2‑year guarantee, providing efficient and dependable commercial ventilation.