NF C63-018:1980 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE. MOUNTING RAILS. G PROFILE FOR THE FIXING OF TERMINAL BLOCKS. (EUROPEAN STANDARD EN 50 035).
1980NF C63-018:1980 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR FOR INDUSTRIAL USE. MOUNTING RAILS. G PROFILE FOR THE FIXING OF TERMINAL BLOCKS. (EUROPEAN STANDARD EN 50 035).