The BIFA Three Phase 4 Pole 10-degree 900mm bifurcated axial fan is designed for robust commercial ventilation. Available in sizes from 250mm to 1000mm in diameter, it features a motor protected to IP55 with Class ‘F’ insulation, capable of operating in ambient temperatures up to 200°C. Speed is adjustable via transformer or inverter when the air temperature does not exceed 60°C. The fan includes an IP55 terminal box and is suitable for environments with up to 95% relative humidity. Manufactured to BS EN ISO 9001:2015 and performance tested to BS 848 parts 1,2 and ISO 5801, it comes with a 2‑year guarantee for reliable operation.