Centrifugal fan "separated airflow" with insulated casing

Three-phase version. Pre-cut air inlet with a diameter of 250mm. Flow rate: 3400 m³/h (pressure drop: 200 Pa).   Single-inlet centrifugal ventilation units with built-in motor (operating temperature/resistance: -20° +110°). Aluminium profiles and ‘sandwich’ type galvanised sheet metal cladding panels with 20mm acoustic insulation (polyurethane foam). Panel with handle for easy access to turbine for maintenance. Open motor access area for after-sales service inspection. Enclosed motor, IP54 protection rating, with thermal protection (in sealed box). Impeller with backward-inclined blades. Complies with CE and German standards DIN 18869 - T1 standard according to VDI 2052.