An inverter includes an upper and lower housing part and electronic components arranged in the upper and lower housing parts. The components are electrically connected to one another in a releasable manner by means of a contact-making system formed from two parts. In order to produce an electrical and mechanical connection by means of a pivoting movement, the upper housing part is connected to the lower housing part in a manually detachable manner by means of a rotating element which forms an axis of rotation for a circle arc. In the upper and lower housing parts, a part of the contact-making system is respectively arranged along the circle arc in such a way that these parts, during a pivoting movement of the upper housing part relative to the lower housing part into an operating position, can be automatically electrically-connected, with the housing parts connected.