Thermal Cut Out Symbol

Thermal fuse 10a 250v 228c 442f 480.

Thermal cut out symbol. 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. The applications of and need for electromechanical thermal switch devices are broad and cover a huge diversity of industry applications. Fuses and electrical protection symbols. Use scheme it s comprehensive electronic symbol library and an integrated digi key component catalog to design and share electronic circuit diagrams.

In single phase motors up to a given motor size around 1 1 kw it can be mounted directly in the main circuit to serve as an on winding protector. Fuses are devices containing a small piece of special wire that melts when the intensity of the current flowing through it for a certain period of time exceeds a set value thus protecting the rest of the electrical circuit overloads. Thermal protectors can also be built into the windings see the illustration below. A thermal fuse is a cutoff which uses a one time fusible link unlike a thermal switch which may automatically reset itself when the temperature drops the thermal fuse is more like an electrical fuse.

The term thermal cutoff switch generally refers to how the switch is used ie. They operate as a sensitive power cut out for both single and three phase motors. Check out the latest parts added to digi key s massive inventory of electronic components.