UL 497 BULLETIN-2017
UL Standard for Safety Protectors for Paired Conductor Communications Circuits (COMMENTS DUE: September 25@ 2017)

Standard No.

UL 497 BULLETIN-2017

Release Date

2017

Published By

Underwriters Laboratories (UL)

Latest

UL 497 BULLETIN-2017

UL 497 BULLETIN-2017 history

• 2017 UL 497 BULLETIN-2017 UL Standard for Safety Protectors for Paired Conductor Communications Circuits (COMMENTS DUE: September 25@ 2017)
• 1970 UL 497-2017
• 2013 UL 497 BULLETIN-2013 UL Standard for Safety Protectors for Paired Conductor Communications Circuits (COMMENTS DUE: July 01@ 2013)
• 2009 UL 497 BULLETIN-2009 UL Standard for Safety Protectors for Paired Conductor Communications Circuits (COMMENTS DUE: March 16@ 2009)
• 2008 UL 497 BULLETIN-2008 UL Standard for Safety Protectors for Paired Conductor Communications Circuits (COMMENTS DUE: August 11@ 2008)
• 2007 UL 497 BULLETIN-2007 UL Standard for Safety Protectors for Paired Conductor Communications Circuits
• 2001 UL 497-2001 UL Standard for Safety Protectors for Paired Conductor Communications Circuits (Seventh Edition; Reprint with Revisions Through and Including June 14@ 2004)
• 1995 UL 497-1995 UL Standard for Safety Protectors for Paired Conductor Communications Circuits (Seventh Edition; Reprint with Revisions Through and Including May 21@ 2001)
• 1991 UL 497-1991 Protectors for paired conductor communication circuits