标准摘要
[中文适用范围]： 覆盖了交流电机驱动场景下的半导体控制装置，为行业内的技术交流和产品认证提供了基础参照，确保了设备在不同环境下的可靠运行。 ***此介绍可能不准确，请注意参考原文。 [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