UL-497A Standard for Secondary Protectors for Communications Circuits

UL-497A - 3RD EDITION - CURRENT
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Included in this current edition are the following subparts:

 3RD EDITION - March 20, 2001
 CHANGE 06/04 - June 14, 2004
 CHANGE 10/08 - Oct. 1, 2008
 CHANGE 12/12 - Dec. 13, 2012
 CHANGE 02/17 - Feb. 10, 2017


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Document Number

UL-497A

Revision Level

3RD EDITION

Status

Current

Publication Date

March 20, 2001