Do newer Keenovo heaters come with builtin thermal fuses?

[id_pqr]

I purchased the Fermio style Keenovo heater. At the base of the wiring, there is a thermal fuse-shaped lump which I can't identify in the square style heaters seen in Nero's videos. Do newer Keenovo heaters come with builtin thermal fuses?

 

[Sanity Agathion]

I am not sure about this specific heater you bought, but the one I bought through Fermio has thermostat for 150 degrees. Heater will turn off when there is a thermal runaway for example from failed SSR. Now - that being said - please install a thermal fuse as well. Thermostat breaks the circuit when hot, but when the mat cools down, it will re-set and close the circuit again, repeating the cycle. Thermal fuse will blow and break the circuit until it's replaced.

 

[id_pqr]

I am not sure about this specific heater you bought, but the one I bought through Fermio has thermostat for 150 degrees. Heater will turn off when there is a thermal runaway for example from failed SSR. Now - that being said - please install a thermal fuse as well. Thermostat breaks the circuit when hot, but when the mat cools down, it will re-set and close the circuit again, repeating the cycle. Thermal fuse will blow and break the circuit until it's replaced.

I think I have the same heater as you then. Do you think a thermal fuse is necessary if the Fermio style heater has a thermostat installed already? If so, can you recommend a non-Ali thermal fuse, something from Mouser/Digikey/Arrow? I've looked before but haven't found anything that seems suitable.

 

[Sanity Agathion]

I think I have the same heater as you then. Do you think a thermal fuse is necessary if the Fermio style heater has a thermostat installed already? If so, can you recommend a non-Ali thermal fuse, something from Mouser/Digikey/Arrow? I've looked before but haven't found anything that seems suitable.

Sadly, I don't, except local vendors selling VORON parts, they usually stock those. Ali seems to be one of the few sources for such fuses. Although I guess any thermals fuse capable of given voltages and Amps will work?

 

[Outsider]

You can get thermal switches with manual reset from numerous places, for example:
https://uk.rs-online.com/web/p/thermostatic-switches/2282614?gb=s
https://uk.rs-online.com/web/p/thermostatic-switches/2228262?gb=s

Octopart is a useful tool:
https://octopart.com/search?q=thermostatic+switch&autosugg_idx=0&currency=USD&specs=0