Revidert
IEC 60947-4-2:1995 ED1
IEC 60947-4-2:1995/AMD2:1998 ED1
IEC 60947-4-2:1995/AMD2:1998/COR1:1999 ED1
IEC 60947-4-2:1995/AMD1:1997 ED1
IEC 60947-4-2:1999 ED2
IEC 60947-4-2:1999/AMD1:2001 ED2
IEC 60947-4-2:1999/AMD2:2006 ED2
IEC 60947-4-2:2011 ED3