Abstract: Provided is an electromagnet contact device including a coil wound around a bobbin, a movable core that is driven by the coil in an axial direction, a pair of fixed contacts for applying direct current (DC) power, a movable contact table that operates in conjunction with the movable core and is movable up and down reciprocally so as to come into contact with the pair of fixed contacts, a yoke including a magnetic material and configured to surround at least a portion of the exterior of the coil, a yoke plate fixedly disposed on an upper side of the yoke, a fixed core including a magnetic body and passing through a center portion of the bobbin and fixedly disposed by the yoke, and a permanent magnet in a ring shape disposed on an upper side of the fixed core.

Abstract: A direct current (DC) switching apparatus is provided. The DC switch apparatus includes an auxiliary contact device includes at least one pair of stationary contacts; one or more coils, a movable iron core that is driven by the one or more coils; a movable contact table operating in engagement with the movable iron core, and an auxiliary contact device arranged below the movable iron core. The auxiliary contact device includes a microswitch.