1970UL 60950-21-2016 UL Standard for Safety Information Technology Equipment Safety Part 21: Remote Power Feeding
2012UL 60950-21 BULLETIN-2012 UL Standard for Safety Information Technology Equipment - Safety - Part 21: Remote Power Feeding
2011UL 60950-21 BULLETIN-2011 UL Standard for Safety Information Technology Equipment - Safety - Part 21: Remote Power Feeding (COMMENTS DUE: DECEMBER 12@ 2011)
2006UL 60950-21 BULLETINS-2006 UL Standard for Safety Information Technology Equipment - Safety - Part 21: Remote Power Feeding (12/08/2006 (8p); 02/10/2006 (8p))
2003UL 60950-21 (ND)-2003 National Differences For UL 60950-21 Information Technology Equipment - Safety - Part 21: Remote Power Feeding (First Edition)
2003UL 60950-21-2003 UL Standard for Safety Information Technology Equipment Safety Part 21: Remote Power Feeding (First Edition)