ANSI/UL 60947-7-1-2017 UL Standard for Safety Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors (Fourth Edition)
2017ANSI/UL 60947-7-1-2017 UL Standard for Safety Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors (Fourth Edition)
2011ANSI/UL 60947-7-1-2011 Low-Voltage Switchgear and Controlgear - Part 7-1: Ancillary Equipment - Terminal Blocks for Copper Conductors