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Thermal Fuses for Heater

Posted by damonb

damonb

Thermal Fuses for Heater
June 21, 2010 12:20AM

Registered: 16 years ago
Posts: 41

Are there any thermal fuses that operate in the 500F temperature range.
I would really like to have a failsafe that kills the power to my heater
if something goes wrong with the temperature control.

The closest I have found are replacement thermal fuses for coffee pots
that open around 400F.

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VDX

Re: Thermal Fuses for Heater
June 21, 2010 03:08AM

Admin
Registered: 16 years ago
Posts: 13,886

... you can apply lower-temp thermal fuses when positioning them not directly near the heating zone ...

Viktor
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Wade

Re: Thermal Fuses for Heater
June 21, 2010 06:54PM

Registered: 16 years ago
Posts: 536

I use a non welded thermocouple for temp control, and have the software look for out of range temperature values. If either of the thermocouple wires come loose, or things get too high, I shut down the heater. If you're using a Makerbot motherboard with an ATX power supply, you can even turn off the power supply automatically.

Wade

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pica

Re: Thermal Fuses for Heater
September 20, 2010 05:23AM

Registered: 14 years ago
Posts: 149

operate = open circuit, right? This one is close:

[www.digikey.com] Thermal fuse (464 degF 240 degC)