This European Standard specifies the requirements, test methods, marking, information supplied by the manufacturer and packaging for energy absorbers. Energy absorbers conforming to this European Standard are used as elements or components either integrated in a lanyard, an anchor line or a full body harness or in combination with one of them. Combinations of an energy absorber and a lanyard are sub-systems constituting one of the fall arrest systems covered by prEN 363, when combined with a full body harness specified in EN 361. Fall arresters are specified in EN 353-1, EN 353-2 and EN 360.