Abstract: The invention relates to a remotely controllable switch unit for switching the mains inside an electrical installation, wherein the switch unit comprises an electrically controllable switch, a control circuit for controlling the switch, a receiver coupled to the control circuit for receiving wireless signals, wherein the switch unit is adapted for mounting in a housing of a wall socket. As a result of these measures it is no longer necessary to place a separate unit between the wall socket and the plug for connecting thereto. The appearance of an electrical installation is hereby improved. Relative to the “bus” system and similar devices, the advantage results that arranging of such a switch unit can take place in particularly simple manner; no changes need after all be made to the wiring of the electrical installation.