Historical
UL 1059 Ed. 5-2019
Standard for Terminal Blocks - Published Date: July 28, 2022
This revision of ANSI/UL 1059 dated June 23, 2020 the following changes in requirements: Deletion of all references to the now withdrawn Standard for Power Conversion Equipment, UL 508C, and replace with the Standard for Adjustable Speed Electrical Power Drive Systems – Part 5-1: Safety Requirements - Electrical, Thermal and Energy, UL 61800-5-1; 8.6. Special Handling of Delta-Rated Overcurrent Protective Devices; Section SA2.3.2A.
Underwriters Laboratories [ul]