Abstract: In exemplary embodiments, operation of microswitches is to be made possible with sterile operating gloves in the operating room. To this end, the disclosure provides that the cover plate be covered with a continuous stiff plastic sheet. The latter plastic sheet is arched so as to be raised in a bubble-like fashion in the region of each switch actuating element. There thus results an edge-free and gap-free surface which can be wiped off with a disinfectant solution. In addition, the invention provides that the interior sides of the bubbles may be printed with symbols. The disclosed embodiments are particularly suited for control consoles which are to be utilized in sterile rooms.