Ash,

Inside of solid state relay is a triac with opto-coupler on input with
Ziner diode thru a resister. Triacs are always better. mechanical relay
Will generate spike RFI it is bad for sensitive electronics.

Andre Abelian


Is it a bad thing to use a solid state relay to control the power to a
switching power supply or is a mechanical relay a better device


-Ash

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