Solid State Relays

MisterBill2

Joined Jan 23, 2018
17,814
Switching between DC sources is seldom done with SSR devices. In fact, I am not aware fit ever being done.

So for such a rare application we must have more information, such as what voltage are the DC sources and what current will be flowing thru the switch. Without that information you will get lots of random guesses that may not apply at all.
 

MisterBill2

Joined Jan 23, 2018
17,814
I know it is POSSIBLE, and sometimes used for control of DC powered items. I am thinking that the TS is asking about selection of power supply source power.
 
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