UL-508 › Complete Document History
Standard for Industrial Control Equipment
| Complete Current Edition: |
18TH EDITION - Standard for Safety Industrial Control Equipment - March 30, 2018
CHANGE 07/21 - REVISION CHANGE - CODE D - July 8, 2021
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Obsolete Revision Information: |
CHANGE 10/13 - REVISION CHANGE - CODE D - Oct. 16, 2013
CHANGE 03/13 - REVISION CHANGE - CODE D - March 19, 2013
CHANGE 04/10 - REVISION CHANGE - CODE D - April 15, 2010
CHANGE 09/08 - REVISION CHANGE - CODE D - Sept. 19, 2008
CHANGE 07/05 - REVISION CHANGE - CODE D - July 11, 2005
CHANGE 12/03 - REVISION CHANGE - CODE D - Dec. 2, 2003
CHANGE 12/02 - REVISION CHANGE - CODE D - Dec. 12, 2002
CHANGE 12/01 - REVISION CHANGE - CODE D - Dec. 17, 2001
CHANGE 01/01 - REVISION CHANGE - CODE D - Jan. 22, 2001
CHANGE 08/00 - REVISION CHANGE - CODE D - Aug. 22, 2000
17TH EDITION - INCORPORATES CHANGES - Jan. 28, 1999
16TH EDITION - INDUSTRIAL CONTROL EQUIPMENT - Feb. 23, 1993
1989 EDITION - INDUSTRIAL CONTROL EQUIPMENT - Sept. 29, 1989
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