The BIFA Single Phase 4 Pole 22° 400mm bifurcated case axial fan is designed for commercial ventilation applications. Available in sizes from 250mm to 1000mm, it features a motor protected to IP55 with Class ‘F’ insulation, capable of operating at ambient temperatures up to 200°C. Fan speed can be adjusted via transformer or inverter when air temperature is below 60°C. The fan includes an IP55-rated terminal box and is suitable for environments with relative humidity up to 95%. Manufactured to BS EN ISO 9001:2015 standards and performance tested to BS 848 parts 1,2 and ISO 5801, it delivers reliable, efficient airflow and comes with a 2‑year guarantee.