A printed circuit board (PCB) assembly includes a PCB and a screwless terminal connection having a conductor rail and a clamping spring. The PCB has a recess on an edge. The conductor rail has a base part soldered to the PCB and bridging the PCB recess. The base part includes an end extending past the PCB edge. The clamping spring includes three spring legs. The first leg contacts the base part and is between the base part and the PCB recess. The first leg includes an end extending past the PCB edge and contacting the end of the base part. The second leg extends from the first leg through the PCB recess and is beneath the PCB. The third leg includes a clamping aperture and extends upward from the second leg above the PCB. The ends of the base part and the first leg extend through the clamping aperture.