Electromagnet that is magnetic only when it is energised. As soon as the current is switched off again, the pot magnet automatically loses its holding force. https://elecena.pl/product/29599691/its-ms5030-12vdc-electro-holding-magnet-5030-12-v-dc-5-w-pot-magnet-with-stra 2025-12-11 https://elecena.pl/product/29599691/its-ms5030-12vdc-electro-holding-magnet-5030-12-v-dc-5-w-pot-magnet-with-stra 2026-02-21