Summary of Topics s1090_7_sum.htmlSummary of Topics
The revisions of ANSI/UL 1090 dated May 12, 2020 add references to UL 61800-5-1, Standard For Adjustable Speed Electric Power Drive Systems to replace all references to UL 508C, Standard for Power Conversion Equipment; 5.6.4.1, and 5.16.4.