CONCENTRIC PLUG FOR STANDBY POWER CUT OFF

PURPOSE: A standby power blocking socket is provided to operate a plurality of AC(Alternating Current) power sockets and a plurality of DC(Direct Current) power sockets as the standby power blocking socket or a constant power socket according to the switch manipulation of a user. CONSTITUTION: A plurality of DC power sockets(20) are installed on corresponding positions of a standby power blocking socket(30) respectively. The DC power sockets receive DC power from an AC(Alternating Current)/DC converter installed in the standby power blocking socket. The DC power sockets output the DC power. A part of the DC power sockets is operated as the standby power blocking socket. The rest of the DC power sockets is operated a constant power socket.