Can you replace a fusible link with a larger gauge wire?

What size replacement fusible link should be used? The automotive service industry recommends using the same gauge and length as the blown fusible link after the cause of failure is corrected.

What gauge is a fusible link?

Typically, a given harness segment is protected by fusible link that is four gauge numbers smaller. A 14-gauge wire would be protected by an 18-gauge fusible link. A 6-gauge wire would be protected by a 10-gauge link, and so on. Odd number wire gauge sizes like 19, 15, 13 and 11 are counted when sizing a link.

What is the difference between a fusible link and a fuse?

Fusible links—also spelled fuseable and fusable—serve a similar purpose to a fuse. Just like a fuse, the link is designed to handle a lower current (amp) load than the rest of the system so, in the event of a short or overload, the link will be the first failure point.

Is a fusible link just wire?

A fusible link acts much like a fuse, only it’s designed to handle a different type of potentially hazardous scenario. These links are actually strands of wire wrapped in a fireproof covering, and are thinner than the wiring harnesses they’re connected to.

How often do fusible links need to be replaced?

once a year
All Fusible Links shall be replaced once a year. The Links shall be replaced sooner during annual inspection if the conditions in (4) exist. The Fusible alloy that is used in the manufacturing of the Fusible Links undergoes a phenomenon known as Creep or Cold flow.

Why do fusible links go bad?

Too high a resistance, the wire in the fusible link melts and creates an open (like blowing a fuse). It is possible that after many years of use and power through the wire that it indeed didn’t have the same load capacity as a brand new one.

What is the point of a fusible link?

A fusible link is a mechanical or electrical safety device. They are used in fire sprinkler heads to activate the sprinkler in the presence of heat. They are used in automobile electrical systems as a fuse.

What temperature does a fusible link melt?

About fusible link’s The melting point of the alloy can be engineered to release at temperatures ranging from 135F/57C to 500F/260C.

What do fusible links do?