A telescopic slide for a microwave oven has a first slide element and a second slide element each having two running surfaces with caged rolling bodies arranged on the running surfaces. The slide elements can be moved along against each other between a retracted position and an extended position. The slide elements each have at least one electrically conductive contact element arranged on the slide elements in such a way that in the retracted position either the contact elements are directly in engagement or that the contact element of the first slide element and the contact element of the second slide element are each in engagement with an electrically conducting conductive element that is moved concomitantly with the rolling-body cage. The result is that in the retracted position there is an electrically conducting connection between the first and the second slide elements, and in at least one position other than the retracted position the electrically conducting connection is broken.