What are Solid State Relay and its uses? | What are its advantages?
A Solid-state relay is an electronic device that switches on or off when a small external voltage is applied across its control terminals. They are semiconductor equivalents of the electromechanical relay and can control electrical loads without moving parts. For example, it controls the AC power for ON/OFF switching, motor speed control, light dimming, or other such applications power control is needed. Using a solid-state relay, These AC loads can be easily controlled with a low current DC voltage, providing long life and high switching speeds. The life expectancy of Solid State Relay is over 100 million operations. It is widely used in heating control, Motor control, capacitor switching and lighting control, solenoid, transformer control, and air conditioning applications. In addition, this electronic switching device is used for external voltage (AC or DC) for controlling terminals. While serving the same functions as an electromechanical relay, expect moving parts. SSR differ