Double-pole socket-outlets with protective contact – DC 10 A, AC 16 A, AC/DC 250 V, degree of protection IP56
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 03/01/2016

Double-pole sockets with earthing contact – DC 10 A, AC 16 A, AC/DC 250 V, degree of protection IP 56
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/1996