Power transfer door loops The cable grommets facilitate electrical contact between the devices installed on the leaf and the door frame. Main features: Guide spring where the cable is housed.Base to hold it to the door (frame or leaf).It allows hiding the cables, providing a more aesthetically pleasing result.* We recommend downloading the technical data sheet below to see all the options. Downloads EA700_Technical_document_1_TESA.pdf (.pdf, 76 kB) Close Power supplyPower supply for electrical supply TransformerElectric transformer Fire prevention magnetic door holderElectromagnetic door holders for fire rated doors.