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:
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.
The maximum current is unlimited.
| UL Standards & Engagement | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | UL 60691 |
| Product Name | Standard for Thermal-Links - Requirements and Application Guide |
