Fusible Link2015964
Fusible links include mechanical and electrical devices.
A mechanical fusible link is a device consisting of two strips of metal soldered with each other with a fusible alloy that is developed to melt at a specific temperature, thus permitting the two pieces to separate. Mechanical fusible hyperlinks are utilized as the triggering device in fire sprinkler systems and mechanical automatic door release mechanisms that close fire doors in warehouses, etc. Some higher-safety safes also utilize fusible link-based relockers as a defense against torches and heat-creating tools. Mechanical fusible links come in a variety of styles and various temperature ratings.
An electrical fusible link is a kind of electrical fuse that is constructed merely with a short piece of wire usually 4 American wire gauge sizes smaller sized than the wire that is being protected. For instance, an AWG 16 fusible link may be used to protect AWG 12 wiring. Electrical fusible links are common in higher-present automotive applications. The wire in an electrical fusible link is encased in higher-temperature fire-resistant insulation to reduce hazards when the wire melts.
