UL 33

UL Standard for Safety Heat Responsive Links for Fire-Protection Service

active, Most Current
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Organization: UL
Publication Date: 9 March 2010
Status: active
Page Count: 22
scope:

These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire suppression systems; or automatic closure devices for doors, windows, dampers or smoke relief vents.

Heat responsive links are categorized by temperature rating, type of coating or plating, minimum and maximum design load, and other factors which may have a bearing on their intended use.

Document History

UL 33
March 9, 2010
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
March 9, 2010
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
March 27, 2003
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
33
March 27, 2003
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
March 27, 2003
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
33
October 18, 1993
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
October 18, 1993
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
These requirements cover heat responsive links used for fire-protection service. These links consist of devices intended for installation under load conditions such as for use with automatic fire...
33
January 1, 1993
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
A description is not available for this item.
33
January 1, 1993
UL Standard for Safety Heat Responsive Links for Fire-Protection Service
A description is not available for this item.

References

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