Ned Posted May 22, 2016 Share Posted May 22, 2016 Do your relays have a built in fly back diode? Or even just a resistor? Most new relays have them (will have a symbol in parallel to the coil on the relay) That might stop it from frying in the future... Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted May 22, 2016 Author Share Posted May 22, 2016 no flyback diode on these, just this symbol Quote Link to comment Share on other sites More sharing options...
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