Robust, horizontally sliding, electrically operated sliding window which is suitable for either indoor or outdoor installation. The sliding window has a 60 mm aluminium frame and can be equipped with insulating glass or up to 20 mm thick safety glass. In its standard version, the sliding window frame is satin anodized and is fitted with D4-12 double glazing. The frame can be finished by painting, powder coating or other forms of anodizing. The sliding window is automatically locked in the closed position and at intervals across the entire opening width. The sliding window is operated by means of a control box or foot switch.