Fusible Link5911961
Fusible links consist of mechanical and electrical devices.
A mechanical fusible link is a device consisting of two strips of metal soldered together with a fusible alloy that is designed to melt at a particular temperature, therefore allowing 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 make use of fusible link-based relockers as a defense against torches and heat-producing tools. Mechanical fusible hyperlinks come in a variety of styles and different temperature ratings.
An electrical fusible link is a type of electrical fuse that is constructed simply with a brief piece of wire typically four American wire gauge sizes smaller than the wire that is being protected. For instance, an AWG 16 fusible link may be utilized to protect AWG 12 wiring. Electrical fusible links are common in higher-current automotive applications. The wire in an electrical fusible link is encased in high-temperature fire-resistant insulation to reduce hazards when the wire melts.
