Relè a stato solido - SSR

A solid state relay (SSR) is a device that switches on or off when an external voltage is applied across its terminals and contain no mechanical parts. SSRs consist of an input sensor, a solid state switching device, and a coupling mechanism with no moving parts and may be designed to switch either AC or DC to the load at extremely fast speeds. Solid state relays have very limited contact wear due to no moving parts, but are more susceptible to overload damage in comparison to electromechanical relays.

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