DIN EN 60947-6-1-2014 低压开关设备和控制设备.第6-1部分:多功能设备.转接开关装置(IEC 60947-6-1:2005+A1-2013).德文版本EN 60947-6-1-2005+A1-2014
Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment (IEC 60947-6-1:2005 + A1:2013); German version EN 60947-6-1:2005 + A1:2014