# Does it exist a non-powered electrical switch that switches electrically?

I know that a relay can remain in closed circuit under current and open without current (or the other way around, depending on the relay), but is there any sort of relay that just requires any power to be applied to be switched, then remains under that state (closed or open) without any power applied? Even better if one can suggest one that is manufactured in solid state (opposed to relays that have moving parts).

Wall switches do not fit this description since those need to be switched mechanically and I'm looking for one that switches electrically.

• Latching Relay. – brhans Mar 23 '16 at 1:46
• What @ brhans and @ BobT said. Mechanical Latching Relays are common. They also come in solid state forms, just less common. Just google solid state latching relay. – Passerby Mar 23 '16 at 1:53