A single-piece high voltage (HV) terminal frame includes a top wall, a bottom wall, and a side wall extending between the top wall and the bottom wall. The top wall includes a first top wall layer and an adjacently located second top wall layer. The side wall includes a first side wall layer and an adjacently located second side wall layer. The bottom wall includes a first bottom wall layer and an adjacently located second bottom wall layer. A single-layer contact spring extends from the first top wall layer, wherein the single-layer contact spring is bent to extend into a space located between the top wall and the bottom wall.