An insulating device includes two or more webs extending radially outwards and a plurality of elastic tongues connected to an end of at least one of the two or more webs. At least one of the two or more webs has an elastically deformable spring element. The insulating device is configured to fit into a core hole of a toroidal core.
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.
