NT Fuse

NT fuse is a kind of low voltage fuse, which plays a role of short circuit protection in the circuit.The fuse is composed of melt, fuse wire and fuse base (the base on which the fuse is installed). The melt of the fuse has the shape of filament, sheet and grid. The materials are lead, tin alloy, zinc, copper, silver and so on.

The fuse sheet is the most important part of the NT fuse, fuse into the box or insulated tube to become a fuse.The specification of the fuse is expressed by the rated current value of the fuse, but the rated current of the fuse is not the fuse breaking current. Generally, the fuse current is 1.3~2.1 times greater than the rated current.The maximum current that the fuse can cut off is called the cutoff capacity of the fuse.If the current is greater than this value, the arc cannot be extinguished when the fuse is broken, which may cause an explosion or other accident.

Electrical equipment or wire insulation aging, damage caused by electrical fault, will cause a short circuit problem, at this time the fuse will play a full role in the protection of equipment.

In use, the fuse is in series in the protected circuit, and the melt of the fuse is equivalent to a section of wire. When the circuit is short circuit fault, the fuse can quickly cut off the power supply of the circuit to protect the line and electrical equipment.