2010DIN EN 60255-1:2010 Measuring relays and protection equipment - Part 1: Common requirements (IEC 60255-1:2009); German version EN 60255-1:2010
2008DIN EN 60255-6 Berichtigung 1:2008 Electrical relays - Part 6: Measuring relays and protection equipment (IEC 60255-6:1988, modified); German version EN 60255-6:1994, Corrigendum to DIN EN 60255-6 (VDE 0435-301):1994-11; German version CENELEC-Cor.:1995 to EN 60255-6:1994