CSA C22.2 NO. 60691:25 ✓ Most Recent

CSA Preface 

This is the third edition of CSA C22.2 No. 60691, Thermal-links — Requirements and application guide , which is an adoption, with Canadian deviations, of the identically titled IEC (International Electrotechnical Commission) Standard 60691 (fifth edition, 2023-03). It supersedes the previous edition, published in 2019 as CSA C22.2 No. 60691 (adopted IEC 60691:2015). It is one in a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. For brevity, this Standard will be referred to as "CSA C22.2 No. 60691" throughout. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was reviewed for Canadian adoption by the CSA Subcommittee on Automatic Controls for Household Use, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. 

Scope 

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 document 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 document 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 document is applicable to thermal-link packaged assemblies where the thermallink(s) has already been approved to this standard but packaged in a metallic or non-metallic housing and provided with terminals/wiring leads. This document is applicable to thermal-links with a rated voltage not exceeding 690 V AC or DC and a rated current not exceeding 63 A. The objectives of this document are: a) to establish uniform requirements for thermal-links, b) to define methods of test, and c) to provide useful information for the application of thermal-links in equipment. This document is not applicable to thermal-links used under extreme conditions such as corrosive or explosive atmospheres. This document is not applicable to thermal-links to be used in circuits on AC with a frequency lower than 45 Hz or higher than 62 Hz.