KBR/F 315D2 sm ext F400

The KBR/F fans smoke extract unit are used in case of fire to extract smoke gases from rooms, and also during normal working conditions for standard temperature up to 200°C.
The KBR/F units have backward curved impellers made of galvanized steel expect size 355 which is a steel impeller painted RAL 9005.The unit have a swing out door for easy inspectionand service. The direction of the door opening can easily be changed from left to right at site. The fan have a double isolated casing with 50 mm rockwool inside.
To protect the motors from overheating the KBR fans have integral thermal contacts with external leads for connection to a motor protection device. (Except size KBR 280 D2 and D2-4 which have integral cold conductors). In case of fire all protective devices must be bridged to guarantee functional capability.
Please note: Speed controll by voltage, i.e. voltage transformers, is not possible!