This International Standard is applicable to THERMAL-LINKS intended for incorporation in electrical appliances@ electronic equipment and component parts thereof@ normally intended for use indoors@ in order to protect them against excessive temperatures under abnormal conditions. NOTE 1 The equipment is not designed to generate heat. NOTE 2 The effectiveness of the protection against excessive temperatures logically depends upon the position and method of mounting of the THERMAL-LINK@ as well as upon the current which it is carrying. This standard may be applicable to THERMAL-LINKS for use under conditions other than indoors@ provided that the climatic and other circumstances in the immediate surroundings of such THERMAL-LINKS are comparable with those in this standard. This standard may be applicable to THERMAL-LINKS in their simplest forms (e.g. melting strips or wires)@ provided that molten materials expelled during function cannot adversely interfere with the safe use of the equipment@ especially in the case of hand-held or PORTABLE EQUIPMENT@ irrespective of its position. Annex H of this standard is applicable to THERMAL-LINK packaged assemblies where the THERMAL-LINK(S) has already been approved to this standard but packaged in a metallic or non-metallic housing and provided with terminals/wiring leads. This standard is applicable to THERMAL-LINKS with a RATED VOLTAGE not exceeding 690 V a.c. or d.c. and a RATED CURRENT not exceeding 63 A. The objectives of this standard are: a) to establish uniform requirements for THERMAL-LINKS@ b) to define methods of test@ c) to provide useful information for the application of THERMAL-LINKS in equipment. This standard is not applicable to THERMAL-LINKS used under extreme conditions such as corrosive or explosive atmospheres. This standard is not applicable to THERMAL-LINKS to be used in circuits on a.c. with a frequency lower than 45 Hz or higher than 62 Hz. 1DV DR Modification of the fifth paragraph to add the following: The maximum current is unlimited.
UL 60691-2016 history
2019UL 60691 BULLETIN-2019 UL Standard for Safety Thermal-Links – Requirements and Application Guide (COMMENTS DUE: May 27@ 2019)
1970UL 60691-2019 UL Standard for Safety for Thermal-Links ?Requirements and Application Guide
2016UL 60691 BULLETIN-2016 UL Standard for Safety Thermal-Links – Requirements and Application Guide (COMMENTS DUE: February 15@ 2016)
2016UL 60691 (ND)-2016 National Differences For UL 60691 Standard for Thermal-Links - Requirements and Application Guide (Fourth Edition)
2016UL 60691-2016 UL Standard for Safety Thermal-Links – Requirements and Application Guide (Fourth Edition)
2011UL 60691 BULLETIN-2011 UL Standard for Safety Thermal-Links – Requirements and Application Guide (COMMENTS DUE: June 20@ 2011)
2008UL 60691 CRD-2008 UL Standard for Safety Thermal-Links – Requirements and Application Guide - Section / Paragraph Reference: Section 7 Subject: Method to perform the Marking test (Edition 3: September 26@ 2003)
2008UL 60691 BULLETIN-2008 UL Standard for Safety for Thermal-Links ?Requirements and Application Guide COMMENTS DUE: May 9, 2008
2007UL 60691 BULLETIN-2007 UL Standard for Safety for Thermal-Links for Use in Electrical Appliances and Components (COMMENTS DUE: NOVEMBER 26@ 2007)
2003UL 60691 BULLETIN-2003 UL Standard for Safety Thermal-Links – Requirements and Application Guide
2003UL 60691 (ND)-2003 National Differences For UL 60691 Standard for Thermal-Links - Requirements and Application Guide (Third Edition)
2003UL 60691-2003 UL Standard for Safety for Thermal-Links ?Requirements and Application Guide Third Edition; Reprint with Revisions through and including December 21, 2007
2001UL 60691 BULLETINS-2001 (Draft)(Withdrawn)(Draft)UL Standard for Safety Thermal-Links (Thermal Cutoffs) for Use in Electrical Appliances and Components Proposed Third Edition
2001UL 60691 BULLETIN-2001 UL Standard for Safety Thermal-Links – Requirements and Application Guide