Solid State Relay Circuit Diagram. There s no relay found just the electronics circuit which does the switching. When there is an impulse ssr is disconnected.
Here you can see the internal block diagram of solid state relay. It is possible to use a low voltage to switch a higher voltage or better than ordinary relay. Solid state relay ssr block diagram.
In the diagram a vt is open at ordinary time and ssr is in on state.
Here you can see four blocks are there. Ssr or solid state relays are high power electrical switches that work without involving mechanical contacts instead they use solid state semiconductors like mosfets for switching an electrical load. Here you can see four blocks are there. Here only a simple block diagram is given to understand the working of ssr.