DIN EN 60947-8-2007 低压开关设备和控制设备.第8部分:旋转电机内置热保护控制装置(正温度系数)(IEC 60947-8:2003 + A1:2006)
Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines (IEC 60947-8:2003 + A1:2006); German version EN 60947-8:2003 + A1:2006