IEC 60947-4-2 Ed. 4.0 b – Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters
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
Note:
This product is unavailable in Ukraine, Russia, Belarus
