Summary of Topics s1240_4_sum.htmlSummary of Topics
This revision of ANSI/UL 1240 dated September 14, 2021 includes the replacement of the reference to UL 508C, Standard for Power Conversion Equipment, with a reference to UL 61800-5-1, Standard for Adjustable Speed Electrical Power Drive Systems – Part 5-1: Safety Requirements – Electrical, Thermal and Energy; 20A.2.4