2008IEC 61810-1:2008 Electromechanical elementary relays - Part 1: General requirements
2004IEC 61810-1/COR1:2004 Corrigendum 1 - Electromechanical elementary relays - Part 1: General and safety requirements
2004IEC 61810-1:2004 Electromechanical elementary relays - Part 1: General and safety requirements
2003IEC 61810-1:2003 Electromechanical elementary relays - Part 1: General and safety requirements
1998IEC 61810-1:1998 Electromechanical non-specified time all-or-nothing relays - Part 1: General requirements
IEC 61810-1:1998 Electromechanical non-specified time all-or-nothing relays - Part 1: General requirements has been changed from IEC 60255-1-00:1975 Electrical relays. Part 1 : All-or-nothing electrical relays.