Relay terminal for use in branch connecting box

A relay terminal for use in a branch connecting box into which the relay terminal is inserted to connect a first end of the relay terminal with a tab of a bus bar and a second end of the relay terminal with a tab of a functional component, said relay terminal comprising a first pair of connecting springs on surfaces of the relay terminal in the vicinity of the first end of the relay terminal, and a second pair of connecting springs on surfaces of the second end of the relay terminal, the connecting springs of each pair being opposed to each other in such a manner that the connecting springs project inward in the configuration of a circular arc with a gap provided between each pair of the connecting springs, through which each tab is inserted between said pair of the connecting springs, opposed ends of each of said connecting springs being connected to surfaces of the relay terminal, whereby a contact load is equally applied to each connecting spring when the respective tabs are inserted into the relay terminal, and wherein the relay terminal is a bent plate-shaped material of a hollow cylindrical configuration, end edges of said plate-shaped material overlapping at a first surface portion, a second surface portion being opposed to said first surface portion, projections being located on said second surface portion, said projections having a height substantially equal to the thickness of said plate-shaped material, whereby said relay terminal can be inserted in the center of said connecting box.