A rotary selector forms a control element for inputting a setting value to an electronic control system, in particular for a control device of an electronic domestic appliance, such as a washing machine, a dishwasher, or the like. The rotary selector has a rotatably mounted control portion and an adapter non-rotatably connected to the control portion. The adapter has a latching section with side faces arranged uniformly about its periphery. Coaxially with the latching section of the adapter is a stationary spring element formed with elastic legs arranged uniformly about a periphery of the latching section and which extend tangentially relative to the side faces of the latching section. The number of the side faces of the latching section is an integral multiple of the number of the elastic legs of the spring element.