Capacitor fastening

The invention relates to capacitor fastening for fastening a capacitor (1) to a panel (2), whereby the capacitor, when mounted in place, is positioned in the panel, fastened at its lower part. The capacitor fastening comprises retaining means (3) in the panel (2) at the mounting point of the capacitor (1) for preventing lateral movement of the capacitor in at least one selected direction; a tightening plate (4) arranged above the panel (2) and to be fastened to the panel, which tightening plate has a hole (5) substantially corresponding to the diameter of the capacitor above the mounting point of the panel; and wedging means (7, 8) between the panel (2) and the tightening plate (4) for tightening the retaining means of the panel and the edge of the hole in the tightening plate from opposite directions against the capacitor.