An earth-conducting element includes a conductor lamina designed to electrically connect together two wires and a substantially vertical shaped body extending in the longitudinal direction. The substantially vertical shaped body including a bottom body section having a bottom free edge, a first end, a second end, and a flat-lamina spring. The bottom free edge extends in the longitudinal direction for resting in the vertical direction on a DIN-standard rail. The first end includes a tooth to engage with one of the two folded flanges of the DIN standard rail B. The second end is opposite to the first end and is designed to form a means for engaging and retaining the flat-lamina spring. The flat-lamina spring includes a head and two flat-pins legs for engagement with the other folded flange of the rail.
