Kato 305 and 305 RWA have successfully passed the most demanding heat and fire resistance tests as specified by the standard EN 12101-2:2003-09, obtaining the classification of B 300 with certificate No. 13-000921 at the IFT testing institute of Rosenheim in year 2013. This is a guarantee for safety, quality, efficiency, reliability and constructional simplicity, all with an attractive design for incorporation in state-of-the-art window frames. It has new electronic technology based on the use of a microprocessor to control the position and manage every working phase. The bodywork is made of die-cast aluminum and the support brackets are manufactured from zinc alloy (zamak). It’s easy to install with quick-coupling assembly onto the support brackets, without any screws or fastening components (NEKOS patented system); another Nekos patent provides for the actuator’s quick-release from the window even just for easier cleaning. The strokes can be selected by means of dip-switches.