The BIFA Single Phase 4 Pole 36° 400mm bifurcated case axial fan is designed to deliver reliable airflow solutions for commercial ventilation. Manufactured in sizes from 250mm to 1000mm, this fan incorporates an IP55-protected motor with Class ‘F’ insulation and is suitable for ambient temperatures up to 200°C. Speed regulation is achievable using either a transformer or inverter, provided the ambient temperature does not exceed 60°C. It includes an IP55-rated terminal box and operates efficiently in environments with relative humidity up to 95%. Built to BS EN ISO 9001:2015 standards and tested to BS 848 parts 1,2 and ISO 5801, the unit comes with a 2‑year guarantee for assured performance and durability.