According to the invention, a multilayer or insulating window pane (1) having at least two rigid panes (1P) and a spacer frame (1S) which connects these panes so as to form a tightly sealed intermediate space between the panes, and also an electrical component (3; for example motor, valve) which is arranged in the intermediate space between the panes, and also an associated electrical connection device is equipped with a detection device (4) for operating data of the component (3), which detection device cannot be manipulated from the outside but can be at least indirectly read off or read out. As a result, switch-on processes or times, maximum current consumption or operating temperature or the like, for example, can be detected and checked for servicing and/or monitoring purposes by reading out the operating data.