Electromechanical switches for use in electrical and electronic equipment - Part 1: Generic specification (IEC 61020-1:2019); German version EN IEC 61020-1:2019— 98 стр.
Three-pole disconnectors and switch-disconnectors for indoor switchgear; rated voltage 12 kV up to 36 kV; rated normal current 400 A up to 1250 A; main dimensions— 2 стр.