Definitions for "Fusible link"
Keywords:  melt, fuse, solder, shut, safety
That part of a fuse which is designed to melt when the rated current is exceeded.
A circuit protection device consisting of a conductor surrounded by heat-resistant insulation. The conductor is smaller than the wire it protects, so it acts as the weakest link in the circuit. Unlike a blown fuse, a failed fusible link must frequently be cut from the wire for replacement.
Device installed local to the door or shutter which will fracture at a specified temperature to release a door closing mechanism. (This originates from prEN 14600 for fire doors)
Keywords:  relock, trigger, heat, sensitive, break
n. a relock trigger activated by heat
is a heat sensitive link designed to break in a fire.