Depends.  If the thermal cut out fails, can the product reach unsafe
temperatures?  If yes then it is a protective device, if no then it isn't.

A standard that covers thermal cut outs is IEC60730.  Thermal links are
covered by IEC60691.

Regards

Chris Colgan
EMC & Safety
TAG McLaren Audio Ltd

mailto:chris.col...@tagmclarenaudio.com


> -----Original Message-----
> From: jim_bac...@mail.monarch.com [SMTP:jim_bac...@mail.monarch.com]
> Sent: 21 September 2000 15:46
> To:   Luiz Claudio; 'emc-pstc'
> Subject:      Re:Protection or Control?
> 
> 
> forwarding for luizboni...@ig.com.br
> 
> ____________________Reply Separator____________________
> Subject:    Protection or Control?
> Author: "Luiz Claudio" <luizboni...@ig.com.br>
> Date:       9/20/00 9:59 PM
> 
> I have a question to those who are familiar with the safety requirements
> established electrical appliance standards.
> 
> A bimetal thermostat is usuallly used to control the temperature of a
> certain
> ambient within certain limits. Can it also be considered as a protection
> device?
> I'm not going to give my oppinion to avoid any possibility of biased
> answers.
> But, please, give your oppinion.
> If you have a reference publication which I could use as a reference for a
> work
> to be presented, please include it in your answer. If not, no problem.
> Just give
> your oppinion.
> 
> Please answer this message to my personal email address:
> luizboni...@ig.com.br
> 
> Thanks a lot,
> 
> Luiz
> 
> -------------------------------------------
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=====================================================
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