Abstract: Provided is a closure device for connecting two assemblies to one another. The closure device includes a first closure part which has a locking piece with a first locking section and a first magnetic element, a second closure part which has a second locking section and a second magnetic element, and an arresting mechanism which is arranged on the second closure part and which has an arresting element and an actuating mechanism operatively connected to the arresting element. The arresting element can be brought into operative connection with the locking piece in the closed position, in order to lock the positively locked engagement between the first locking section and the second locking section. The actuating mechanism may be actuated in order to adjust the arresting element relative to the locking receptacle so that the first locking section and the second locking section are releasable from one another.