http://www.fotek.com.tw/pdf/etc_34.pdf
What is the current draw of the heating element?  Those can take in excess =
of 5,500W, and even more because the resistance goes up as they heat, which=
 can take like 10 seconds.  The datasheet also seems to recommend a finned =
aluminum heatsink.  1.6V rated drop on the datasheet, @ a conservative 20A,=
 that is 32W.  It's quite possible that it just overheated from inadequate =
cooling.  I can't believe it still works.  Now I'll have to go out and buy =
one.

Cheers,
Robert

> From: yes@nope9.com
> Subject: [EE] Cheap SSR melts down FOTEK from eBay
> Date: Tue, 16 Dec 2014 18:52:07 -0700
> To: piclist@mit.edu
>=20
> Here are photos of the SSR
> https://www.flickr.com/photos/48808176@N08/sets/72157649733342556/
>=20
> 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.
>=20
> 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 fa=
sten it tightly or use thermal paste.
>=20
> I tried the SSR on the bench ( using 120VAC and a 200W lamp ) and it stil=
l appears to work.
>=20
> Does the PIClist have any suggestions ?
>=20
> Gus in Denver
>=20
>=20
> --=20
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
 		 	   		 =20
--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.