Types Of Thermal Fuse

The fuse element in a thermal fuse is made up of a temperature sensitive alloy.

Types of thermal fuse. Thermal fuses are one time only fuses and are basically a temperature sensitive fuses. A single use device that cannot be reset and must be replaced when it fails or is triggered a thermal fuse is used when the overheating is a result of a rare occurrence such as failure requiring. When high currents due to over current and short circuit flow through the elements of the fuse the fuse elements melts down which lead to release the spring mechanism and prevent the arc and fire and protect the connected circuit. These can be made using gas metal contacts mercury or other mechanisms but the main difference between a thermal fuse and a thermal switch is that thermal fuses are single use.

Also known as thermal cut offs these fuses prevent equipment from overheating they work similar to electrical fuses when the device or environment becomes too hot the fuse opens and the device turns off. Thermal fuses are also called as thermal links or thermal cutouts tco. Aside from thermal fuses many appliances and commercial machinery use thermal switches. Some thermal switches are also single use but many types can simply be reset.

A wide variety of thermal fuse types options are available to you such as iec csa. In a thermal fuse the fuse element hold a mechanical spring contact which is normally closed.