DIN EN 60947-4-3:2012
Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads (IEC 60947-4-3:1999 + A1:2006 + A2:2011); German version EN 60947-4-3:2000 + A1:2006 + A2:2011