An electrical connector assembly includes a spring member having a generally C-shaped body extending between a leading edge and a trailing edge. The C-shaped body is formed by a first hook portion, a second hook portion, and a central section extending between the first hook portion and the second hook portion. Each of the hook portions are adapted to receive a conductor. The spring member is movable between a normal position and a deflected position, wherein in the deflected position, the spring member imparts a clamping force on the first and second conductors. The assembly further includes a wedge member having a leading end and a trailing end. The wedge is positionable within the spring member to drive the spring member from the normal position to the deflected position, wherein the wedge has an initial position and a final position corresponding to the deflected position of the spring member. Relative positions of the wedge member with respect to the spring member in the initial position and the final position vary based on a size of the conductors.