The BIFA 250mm Single Phase 4 Pole 30° Fan (Stock Ref. BIFA251430) is a bifurcated case axial fan suitable for fan sizes from 250mm to 1000mm. It features Class F motor insulation and IP55 protection, capable of operating in ambient temperatures up to 200°C. The fan’s speed can be controlled via transformer or inverter when the ambient temperature is not higher than 60°C. Designed for relative humidity levels up to 95%, it is manufactured to BS EN ISO 9001:2015 and tested to BS 848 Parts 1 & 2 and ISO 5801 standards. Backed by a 2‑year guarantee, this fan provides reliable performance for commercial ventilation applications.