NF C63-083:1987 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE. INDUCTIVE PROXIMITY SWITCHES. FORM D,FOR ALTERNATING CURRENT,2 TERMINALS. (EUROPEAN STANDARD EN 50 038).
1987NF C63-083:1987 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE. INDUCTIVE PROXIMITY SWITCHES. FORM D,FOR ALTERNATING CURRENT,2 TERMINALS. (EUROPEAN STANDARD EN 50 038).