Housing The fan casing is made of double skinned galvanized steel sheet with 50 mm thick mineral wool thermal and noise insulation. The design of the casing guarantees long-term temperature resistance of 200 °C and up to 400 °C in the smoke extract mode for two hours. The casing is equipped with mounting brackets with silent blocks and a hinged door for easy maintenance and inspection. Impeller The impeller is radial with backward curved blades. Motor The motor is located out of the airstream on a hinged door. The motor is equipped with thermal contacts, these must be connected to the appropriate thermal protection relay. In the event of fire, a permanent power supply must be provided outside the protective relay and, if necessary, the frequency converter. Installation Mounting is carried out using brackets placed on the casing so that the fan discharge is always directed upwards. Speed control Speed control is possible with a frequency converter.
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Availability in 2-3 weeks Manufacturer Systemair Type of good fan Design for heat and smoke extraction Protection IP IP55 Insulation class F
Data sheet ds-kbr-kbrf-en.pdf