Abstract: An electronic circuit arrangement automatically provides an energizing current to a solenoid for ejecting a plug from an outlet coupled to a source of supply voltage upon substantial cessation of current flow being drawn by an appliance by way of the plug while the supply voltage is present. The energizing current is controlled by a controlled switching device. An optional keyed plug is utilizable for selectively enabling operation of the solenoid.

Abstract: An automatic disconnector for a plug includes an ejector for ejecting the plug from an outlet socket; a sensor for sensing current flow through the plug and for sensing a substantial cessation of the current flow. Upon occurrence of a substantial cessation of current flow, the ejector operates to eject the plug from the outlet. The disconnector is optionally integrally formed with the plug or with the outlet socket. An optional keyed plug is utilizable for selectively enabling the disconnector.