These requirements cover products which are molded of insulating material and are intended to cover the outlet slots of receptacles having 1-15R and 5-15R configurations in accordance with Wiring Devices- Dimensional Requirements, ANSI/NEMA WD6.
UL 2255-1999 history
1970UL 2255-2021 UL Standard for Safety Receptacle Closures
2016UL 2255 BULLETIN-2016 UL Standard for Safety Receptacle Closures (COMMENTS DUE: October 31@ 2016)
2012UL 2255 BULLETIN-2012 UL Standard for Safety Receptacle Closures (COMMENTS DUE: March 28@ 2012)
2011UL 2255-2011 UL Standard for Safety Receptacle Closures (Second Edition; Reprint with Revisions Through and Including November 1@ 2016)
2010UL 2255 BULLETIN-2010 UL Standard for Safety Receptacle Closures (COMMENTS DUE: November 11@ 2010)
2008UL 2255 BULLETIN-2008 UL Standard for Safety Receptacle Closures COMMENTS DUE: March 28, 2008