Definitions for "SOLID STATE RELAY"
a control relay with isolated input and output, whose functions are achieved by means of electronic components without the use of moving parts such as those found in electromechanical relays
a switching device that completes or interrupts a circuit electrically and has no moving parts
A solid state switching device that completes or breaks a circuit electrically with no moving parts.
Keywords:  silent, electronic, device
an all-electronic device, so it is silent