GB/T 14048.6-2016

Low-voltage switchgear and controlgear—Part 4-2: Contactors and motor-starters—AC semiconductor motor controllers and starters (including soft-starters)

低压开关设备和控制设备 第4-2部分：接触器和电动机起动器 交流电动机用半导体控制器和起动器(含软起动器)