A switching device used to open an electric circuit when there is no current through it. They are used to isolate a part of an electrical system to allow the maintenance staff a safe access to it.
A device that distributes electric current, especially to the spark plugs in an internal combustion engine.
One who or that which distributes.
A machine for distributing type.
An appliance, such as a roller, in a printing press, for distributing ink.