DIN EN 60947-4-1-2014 低压开关装置和控制装置.第4-1部分:接触器和电机启动器.机电式接触器和电机启动器(IEC 60947-4-1-2009+A1-2012).德文版本EN 60947-4-1-2010+A1-2012
Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters (IEC 60947-4-1:2009 + A1:2012); German version EN 60947-4-1:2010 + A1:2012