Abstract: An arc quenching system includes an arc-extinguishing unit and an arc-blowing magnetic unit. The arc-extinguishing unit extinguishing an arc discharge produced upon a switching operation of a contact pair from a closed state to an open state. The contact pair having a static contact and a movable contact which is movable relative to the static contact between the closed state and the open state in which the movable contact is spaced apart from the static contact by a gap. The arc-blowing magnetic unit creates a magnetic field having a plurality of magnetic field lines that cross a gap region of the contact pair along a predetermined magnetic field direction. The arc-blowing magnetic unit creates the magnetic field lines with an orientation based on an electrical polarity of the static contact and a positioning of the arc-extinguishing unit to magnetically blow the arc discharge toward the arc-extinguishing unit.