A device for electrical isolation is suitable for installation in the core hole of a toroidal core. The device includes a center section that has a rotational axis, and branches that extend outwards and that are deformable in the rotational direction about the rotational axis. Each branch has an insulating region that preferably extends in the radial direction and that is thicker than the branches.
This application is a continuation of co-pending International Application No. PCT/DE2005/001154, filed Jun. 30, 2005, which designated the United States and was not published in English, and which is based on German Application No. 10 2004 048 966.1, filed Oct. 7, 2004, both of which applications are incorporated herein by reference.
A mounting device for a toroidal core, preferably insertable into a toroidal core, has a catch device and thus fixable on a counterpart, as well as a support device for a toroidal core choke. The support device has at least one catch device on which mounting device can be fixed.