标准摘要
[中文适用范围]： 适用于控制器和启动器，可能包括串联机械开关装置，用于连接到额定电压不超过 1 000 V ac 的电路 [外文原描述]： Applies to controllers and starters, which may include a series mechanical switching device, intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c.
英文名称Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters