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IEC 60947-4-2:2020 applies to a.c. semiconductor motor 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. This standard characterizes a.c. semiconductor motor controllers and starters with and without bypass means.
Product Details
- Edition:
- 4.0
- Published:
- 06/26/2020
- Number of Pages:
- 230
- File Size:
- 1 file , 5.1 MB