Can solid state relays switch AC?
Can solid state relays switch AC? Solid state relays can be designed to switch both AC or DC currents by using an SCR, TRIAC, or switching transistor output instead of the usual mechanical normally-open (NO) contacts. Solid state relays have no such limitations. Can an AC solid state relay be used for DC? No, it cannot be used. The element characteristics of Solid-state Relays will not allow it to reset if a DC load is used. Solid-state Relays for AC load switching use thyristors and triacs as output elements. The DC current will never become zero, therefore it will not...