The BIFA Single Phase 2 Pole 28° 315mm fan belongs to the BIFA bifurcated case axial fan series, designed specifically for commercial ventilation use. Available in diameters from 250mm to 1000mm, it features motors with IP55 protection and Class ‘F’ insulation, enabling operation in ambient temperatures up to 200°C. Speed adjustment is possible via a transformer or inverter, provided the ambient air temperature does not exceed 60°C. The fan is fitted with an IP55-rated terminal box and is suitable for relative humidity levels up to 95%. Manufactured in accordance with BS EN ISO 9001:2015, its performance is tested to BS 848 parts 1 and 2 and ISO 5801 standards. The unit comes with a 2‑year guarantee.