Artikel-Nr.: 503612 - 62Thats the one I have. But when I read the datasheeth from the conrad site it says :"magnete werden direct gespeist mit 230 VAC"But I heard from someone else that there is a special controllor card available with an adaptor and dc/ac convertor. In that way you can apply 220DC direct (via the controllor card) to the magnet.So problem solved. Norbert

Hi Norbert,mine came without any data sheets. But they have 12 V DC printed on them and they work with 12 v DC (as described, I use 15 v to get the necessary starting force).Hans