Relay Switch

 is kind of normally open switch. Use them in electrical circuits to have one circuits switch anther circuits.

Properties
A Relay Switch is an electrical device, made for when you want to activate one circuit by a current or signal then open or close another circuit.

Use a Not Gate immediately before the upper left terminal to change it to be a normally close switch type instead. ''(Hint) Relays can be used to isolate the trigger (left left) terminal source to power on the left 2 terminals. This lets you use low voltage signals to turn on off a larger power devices.''

In-Game Description
Closes the circuit between the two right outlets if the bottom-left outlet is powered.