Distancer for an electric rail system

The spacer (3) has locking elements (4, 5) connected with clamping elements (21, 21') of covering elements (2, 2'), respectively. Two carrier elements (7, 8) are connected by a crossbar (9) that exhibits two crossbar elements (91, 94), where the crossbar elements are actuatedly and/or form-fitly connected with one another by locking, snapping and clicking connections. A separating unit (100) i.e. lever, separates the crossbar elements of the spacer, and is arranged beside a retaining element (95). The crossbar elements are material-conclusively connected with each other.