KS C IEC 60947-4-3-2012(2022) Low-voltage switchgear and controlgear-Part 4-3:Contactors and motor-starters-AC semiconductor controllers and contactors for non-motor loads
2012KS C IEC 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