Hello guys in this post we will discuss Difference Between Thermal Fuse and Thermal Switch? For the past 25 years I have had the unique opportunity to speak directly to many professionals and educators who use Overhead Projectors as an integral part of their work. Through this collaboration I have gained notes and information that inspired me to write these articles related to some of the most common issues experienced by the owners of Overhead Projectors today and yesterday. This is the sixth article in a series of articles to be written based on the views of Electronics experts regarding some of the most common issues of today’s Overhead Projector. This article will distinguish between a hot fuse and a hot switch.
Let’s start with hot energy. In most cases the manufacturer will install a hot fuse on your Overhead Projector’s electrical circuit to protect the projector from damage due to overheating.
Difference Between Thermal Fuse and Thermal Switch
How hot fuses work is naturally simple. The fuse is limited to the specific temperature determined by the manufacturer. If for some reason the cooling system in your top project fails the hot fuse will open when it has reached the pre-determined temperature, shut off the power to the projection wire.
Once the thermal fuse has done its job, it will need to be replaced, as it cannot be reset.
I am often asked if this heat fuse can pass instead of being replaced. Yes they can, but our advice is not to overdo this important safety feature of your Overhead Projector. Saving a few dollars now can cost you a lot in the future without this important security device.
The hot switch does a different job for your top Projector. The hot switch we are referring to here is used to control the Overhead Projector cooling system.
The hot switch remains in the open state (no current flow) until it reaches the pre-set temperature, at which point the hot button closes and activates the electric circuit to allow the cooling fan to operate. When the Overhead Projector is turned off the fan will continue to operate until the unit is cool enough to allow the hot switch to turn on and turn off almost fan.
Both of these electronic devices are an integral part of your Overhead Projector and should be replaced by a Professional Technician.