Help me to identify this Thermal fuse from my sister's mixer

[Francesc V.]

Hi everyone:

This is the second time I have my sister's mixer on the bench. First time I identified a blown tiristor......this time I guess it's the thermal fuse (reads open).

My understanding is that it should be (NC) normally closed and open at 85C?????

Could you help me to identify/get a good one? How many amps? I was about to buy a NC 10A, 85 celcius in Aliexpress. (ceramic one)......but I guess is too much.

Wording in the back......... "limitor 16", "T160".


Thanks in advance,
Francesc.

[truclacicr]

https://www.limitor.com/en/products/...-y?category=34

It appears to be resettable.

https://www.limitor.com/en/products/...rature-limiter

"Bimetal thermal switch with self-holding and tripping function"

Up to 9.6 A
40 -150°C

https://www.limitor.com/en/news/blog-archive/briefly-explained-protection-regulation

http://www.tanpoqiuer.com/pdfs/201709/28_67603.pdf

[sam_sam_sam]

Some older switching power supplies use this type of thermal switch to turn on cooling fans but you need it in the other direction to be NC and open when current is excessive

I am not sure where to find the exact style that you have but you can look for thermal limit switches either normally open or closed ( on EBay ) but not in the style that you have unless you want to slightly modify the circuit board to accommodate the different styles of thermal limit switch

[truclacicr]

This switch appears to be a dual purpose type. It opens when the temp exceeds 85C or when the current exceeds a certain level. I suspect that "T160" might indicate 1.6A slow blow. (Surely it's not 160mA ?)

What is the rating of the mixer?

[Francesc V.]

Thank you all for the responses and links.

Mixer is a 1000W bosch mixer.
I confirm that we need to find a substitute for this piece. As long as I solder a very thin cooper wire, it works. :-)

Now that it works, I will measure the load and then we will decide the fuse.........not sure if it's the right approach. xDDD

Regards,
Francesc.

[sam_sam_sam]

When checking the amperage do this with it loaded with the way you plan to use it and add a safety margin to keep from tripping the fuse or circuit breaker device used and you also need to know what the inrush current is also mind you that this is momentarily but if you use a fast acting device you need to keep this mind

[Francesc V.]

It only gets about 50W from the main......I observed high peeks of about 70W. For the time being, it's delivered with a "proper calibrated fuse" 🤣

[sam_sam_sam]

That great news did you use a fast acting fuse please do not be tempted to use a slow acting acting fuse because this will defeat the purpose of type of breaker that was in it

By the way what is the rate wattage of this mixer from the date plate

[Francesc V.]

On the mixer, it's written 1000W :-)

It's a Bosch mixer........ Do you have this brand in the USA?