what is the use of fuse? Share with your friends Share 1 Pintu B. answered this Dear Student , Fuse is use for protection of electrical circuits i.e. any electrical equipment.Fuse can be used to protect a refrigerator, air conditioning machine, TV set, even your whole house. When current above the allowable value (the fuse is designed based on that value) flows through fuse it will melt and isolate the circuit from supply thus saving the equipment from burning. Regards 3 View Full Answer