Built-in fan, thermally uninsulated Product specification: Built-in centrifugal fans with free running impeller, thermally uninsulated Centrifugal fans for installation in devices, without housing. Max. supply medium temperature +100 °C Properties & special features: Centrifugal fans for installation in devices, without housing. Max. supply medium temperature +100 °C High-performance impeller with backward-curved blades. Square, rectangular or round support plate. Square or rectangular support tray. On a modular square support plate with mounted and adjusted inlet nozzle or as motor impeller with loose or fitted inlet nozzle. Installation depth of support tray can be defined by the user. Motor concepts: IEC standard motor versions: IMB3 or IMB5 Option of special motors also available: ISO H or with stainless steel shafts