Hi Gus,

I don't know if it could be counterfeit, but I have had experience with=20
not properly mounting similar SSR devices (during repairs and testing)=20
and the outcome has been death to the SSR, on 240VAC 10A loads, in=20
commercial equipment.
Proper mounting and correct thermal transfer to the heatsink is also=20
important, - that's what I have found over the years.
Even using old thermal paste is a bad idea.
It's best to use a new heatsink pad or new thermal paste to ensure heat=20
is correctly dissipated and controlled.

Hopefully no other damage was caused.

Peter

On 17/12/2014 12:52 PM, NOPE9 YES wrote:
> Here are photos of the SSR
> https://www.flickr.com/photos/48808176@N08/sets/72157649733342556/
>
> The FOTEK SSR-25DA was switching power to a clothes dryer heating element=
 at 240VAC.
> 12VDC was supplied to the + side of the relay input through a 500 ohm res=
istor.  A micro-switch ( normally open )
> grounded the + side to shut off the heating element.
>
> Is the FOTEK likely to be counterfeit ?
> Although it is hard to tell in the photos , it appears the heatsink got v=
ery hot.  I had it screwed to the metal frame of the appliance.  I did not =
fasten it tightly or use thermal paste.
>
> I tried the SSR on the bench ( using 120VAC and a 200W lamp ) and it stil=
l appears to work.
>
> Does the PIClist have any suggestions ?
>
> Gus in Denver
>
>

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