UL 840-1993
Insulation coordination including clearances and creepage distances for electrical equipment

Standard No.

UL 840-1993

Release Date

1993

Published By

Underwriters Laboratories (UL)

Status

Be replaced 2009-01

Replace By

UL 840 BULLETIN-2004

Latest

UL 840-2022

UL 840-1993 history

• 1970 UL 840-2022
• 2016 UL 840 BULLETIN-2016 UL Standard for Safety Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment (COMMENTS DUE: October 3@ 2016)
• 2011 UL 840 BULLETIN-2011 UL Standard for Safety Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment (COMMENTS DUE: May 31@ 2011)
• 2006 UL 840 BULLETINS-2006 Standard for Safety for Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment
• 2005 UL 840-2005 UL Standard for Safety for Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment Third Edition; Reprint with revisions through and including March 2, 2007
• 2004 UL 840 BULLETIN-2004 UL Standard for Safety Insulation Coordination Including Clearances and Creepage Distances for Electrical Equipment
• 1993 UL 840-1993 Insulation coordination including clearances and creepage distances for electrical equipment