Bosch FAD-420-HS-EN Duct detector housing with base F.01U.029.411

Use in ventilation systems with air velocities from 1 m/s to 20 m/s For the activation of fans, door controls or external display devices an optional Relay Board can be installed A clear section on the frosted cover allows observing the alarm LED of the integrated FAD-425-O-R Detector Control to prevent unwanted removal of the cover Easy installation of the FAD-425-O-R Detector Maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators Color Gray Dimensions (H x W x D) (cm) 16.50 x 39.50 x 11 cm Material Plastic Operating relative humidity, non-condensing (%) 0 – 95 % Operating temperature (°C) 0 – 50 °C Operating voltage (VDC) 15 – 33 VDC Permissible air speed (m/s) 20 m/s Storage temperature (°C) -20 – 80 °C