Yale EPTL Long Electric Power Transfer The Yale EPTL long electric power transfer is 21-3/8"L x 7/8" W x 11/16"D. Yale EPTL is recommended for extended length hinges and pivot hinges. Yale EPTL Installs in the door and frame edges and has a Flexible steel shield that protects wires - 3/8" [9,5mm] inside diameter.