The BIFA 250mm Three Phase 4 Pole 35° Fan (Stock Ref. BIFA253435) is a robust bifurcated case axial fan engineered for commercial and industrial ventilation. Suitable for fan sizes between 250mm and 1000mm, it incorporates a Class F insulated motor with IP55 protection for reliable operation. The unit is designed to handle ambient air temperatures up to 200°C and offers speed control via transformer or inverter when the air temperature is below 60°C. Built with an IP55 terminal box, it can withstand relative humidity up to 95% RH. Manufactured under BS EN ISO 9001:2015 quality standards and tested to BS 848 Parts 1 & 2 and ISO 5801, this fan provides proven performance and durability. Backed by a 2‑year guarantee, it is a dependable solution for demanding ventilation environments.