The NOsparc MGXDC1F250 arc suppressor is designed to suppress contact arcing from 12Vdc to 250Vdc. The NOsparc MGXDC1F250 arc suppressor connects across the contact terminals on existing products and equipment using only two wires. NOsparc® DC contact arc suppressors (DC power applications) protect the contact points of relays, contactors, or micro-switches, which extends their life and improves their overall performance along with the equipment these switches control.