Interface assembly

An interface assembly with a first interface component (10) and a second interface component (20) with a sliding guide (30) for mechanically fixing the interface components (10, 20) to one another, wherein a tongue (12) projecting from a base surface (11) is arranged on one of the interface components (10) and a groove (22) with corresponding cross sections located in a base surface (21) is arranged on the other interface component (20), wherein the tongue (12) and the groove (22) lock the interface components (10, 20) to each other in a form-fitting manner and block a movement perpendicular to the base surfaces and perpendicular to the longitudinal extension of the tongue (12) and groove (22), wherein electrical contact elements (15, 25) are arranged on the tongue (12) and in the groove (22), said contact elements establishing an electrical connection in a joined state of the interface components (10, 20), and wherein the groove (22) is sealed on the end face in the joined state with the tongue (12).