Socket, in particular a travel adaptor, with - a plug plate with a first socket arrangement with - first plug-in openings (23a,23b) for the corresponding pins of a plug of a first standard, a second socket arrangement with - second plug-in openings (27a,23b) for the corresponding pins of a plug of a second standard, - contact receptacles of a first type provided at a distance from the plug plate for the reception of pins of the first standard, and - contact receptacles of a second type for the reception of pins of the second standard, together with - a first protective element, which can be moved from a closed position, in which at least the first plug-in openings (23a, 23b) are blocked, into an open position, in which the first plug-in openings (23a, 23b) are open, and - a second protective element (43, 45), which can be moved from a closed position, in which at least the second plug-in openings (27a, 27b) are blocked, into an open position, in which the second plug-in openings (27a, 27b) are open, and - spring elements (47, 49, 51) for purposes of preloading the first and the second protective elements (41, 43, 45) into their respective closed positions, wherein the first and the second protective elements (41, 43, 45) are preloaded by the spring elements (47, 49, 51) in different directions of movement into their respective end positions, characterised in that, the second protective element is arranged on the first protective element in the form of a slider; which is arranged such that it can be moved at right angles to the direction of movement of the first protective element. - a plug plate with a first socket arrangement with - first plug-in openings (23a,23b) for the corresponding pins of a plug of a first standard, a second socket arrangement with - second plug-in openings (27a,23b) for the corresponding pins of a plug of a second standard, a first socket arrangement with - first plug-in openings (23a,23b) for the corresponding pins of a plug of a first standard, - first plug-in openings (23a,23b) for the corresponding pins of a plug of a first standard, a second socket arrangement with - second plug-in openings (27a,23b) for the corresponding pins of a plug of a second standard, - second plug-in openings (27a,23b) for the corresponding pins of a plug of a second standard, - contact receptacles of a first type provided at a distance from the plug plate for the reception of pins of the first standard, and - contact receptacles of a second type for the reception of pins of the second standard, together with - a first protective element, which can be moved from a closed position, in which at least the first plug-in openings (23a, 23b) are blocked, into an open position, in which the first plug-in openings (23a, 23b) are open, and - a second protective element (43, 45), which can be moved from a closed position, in which at least the second plug-in openings (27a, 27b) are blocked, into an open position, in which the second plug-in openings (27a, 27b) are open, and - spring elements (47, 49, 51) for purposes of preloading the first and the second protective elements (41, 43, 45) into their respective closed positions, wherein the first and the second protective elements (41, 43, 45) are preloaded by the spring elements (47, 49, 51) in different directions of movement into their respective end positions,