Abstract: The invention concerns a dispenser (1) comprising: —a housing (2) defining an internal space (3), —a beverage preparation unit housed in the internal space, said beverage preparation unit being connected to an electric supply, —a door (4) to get access to the internal space of the housing, said door being assembled to the housing (2) by means of at least one hinge (5), said door comprising one element erecting from the internal surface of the door, said door being configured for switching off the electric supply of the beverage preparation unit when it opens, the switching off being due to the release of a mechanical and electric contact by the at least one erecting element, wherein the dispenser comprises a slider (6), said slider comprising: —a first part (61) configured for switching on the electric supply of the beverage preparation unit when the slider is translated from a first rest position to a second operative position, and —a second part (62) configured for engaging with a locking device (7) when th