An electrical connector arrangement taps off electrical current from a plurality of coplanar parallel input insulated conductors and supplies the same to a plurality of output conductors, respectively. A rectangular base member is provided having a horizontal upper surface that supports a plurality of parallel coplanar longitudinally-extending input conductors, respectively. A pair of pivot members are connected with the ends of the base member for pivotal movement about transverse horizontal pivot axes, respectively. As the pivot members are pivoted from disengaged positions toward engaged positions parallel with and directly above the base member top surface, bifurcated insulation-piercing knives on the pivot members pierce the insulation layers of the insulated conductors and electrically engage the conductors. Junction blocks fastened to the pivot members include output contacts connected with the insulation piercing knives via bus bars, which output contacts are connected with the output conductors, respectively.