Abstract: This invention relates to a connection terminal assembly constructed by forming recesses at four corners of one side, hinge shafts and fixed shafts at its opposite side of where said recesses are located, and an opening; installing a wire contacting plate elastically by using a spring which is inserted in an inclined hole; and forming guide grooves at one side of the connection terminal assembly so that a "T" type conductor plate or a "Z" type conductor plate can be selectively fed into said guide grooves. A wire inserted into an opening is pressed firmly by a wire contacting plate which is elastically mounted by a spring and rotates around a hinge shaft.