How Solid State Relay Board differ from other Mechanical Relays?

A relay is an electrically operated switch which uses different operating principles from the electromagnet to mechanically to solid-state relays. Relays are preferably suited for controlling everything from lights and motors to telecommunication, audio, and video signals. These come in many sizes and ratings almost tens of thousands of relay varieties can be found on the market. Solid-state relays have fast switching speeds compared with electromechanical relays, and have no physical contacts to wear out.

Difference between Solid-state relays over other Mechanical relays:

Both types of relays have their own advantages and disadvantages. But solid-state relay board is most commonly used compared to electromechanical relays.

•    Solid-state relays can be switched by a much lower voltage and at a much lower current than most mechanical relays.

•    Solid-state relays cab be switched faster than electromechanical relays; the switching time of a typical optically coupled SSR is dependent on the time needed to power the LED on and off - of the order of microseconds to milliseconds.

•    Solid-state relays have improved lifetime as compared to electromechanical relays even if it activated more time as there are no moving parts to wear and no contacts to pit or build up carbon.

•    Solid-state relays have totally clean, bounce less and silent operation.

•    Solid-state relays can be allowed to use in explosive environments as it is less sensitive to sparking, mechanical shock, vibration, humidity, and external magnetic fields.

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