Dc Solid State Relay Circuit Diagram. In this there is only semiconductor devices used no mechanical coil relay is used to switching the connected load. Solid state relay is a type of switch to activate load by using without any mechanical parts.
It is possible to use a low voltage to switch a higher voltage or better than ordinary relay. It can not only work on 12v and you can also operate it from a wide range of voltages from 6v to 24v dc. In reality it is not a relay after all.
It has an optical isolation and can be used for inductive loads.
Input trigger voltage 3v to 9v dc 1 5v to 12 v with transistor and output load 10amps and supply 12v to 60v dc 100v dc also possible. These devices can be used for operating high power ac loads as well as dc loads. Connect r positive terminal to the push button switch. Here is a very useful circuit of a 12v dc solid state relay.
