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Failures of Solid State relays

K

karthik

Jan 1, 1970
0
I am using Solid state relays to On/Off heaters so as to control
temperature.
In case if heaters get short,immediately the Solid state relays ( SSR )
also gets short and
I need to change new one.Even though I have Fuse protection the SSR and
Fuse gets blown.
Since the Cost of SSR is high,I have so many troubles.

So any one Please suggest some ideas to prevent SSR failure.Is there
any protection like
Varistors , RC circuit to prevent this
 
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