2010EN 60947-4-1:2010 Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters (Incorporates Amendment A1: 2012)
2001EN 60947-4-1:2001 Low-Voltage Switchgear and Controlgear - Part 4-1: Contactors and Motor-Starters - Electromechanical Contactors and Motor-Starters
1992EN 60947-4-1:1992 Low-voltage switchgear and controlgear; part 4: contactors and motor-starters; section 1: electromechanical contactors and motor-starters (IEC 947-4-1:1990)