An electromagnetic relay is provided with a housing; a first fixed contact terminal and a second fixed contact terminal secured to the housing; a movable contact accommodated in a chamber in the housing; a movable shaft with one end connected to the movable contact, and a solenoid configured to drive the movable shaft in a contact movement direction. The solenoid includes: a spool with a through-hole in the drum; a fixed armature secured in the through-hole; and a movable armature arranged between the fixed armature in the through-hole and an insulating wall; the movable armature is configured to travel with the movable shaft between an operation position and a return position. The housing includes an alignment part that determines the return position of the movable armature.

A compact disconnect device includes a magnetic arc deflection assembly including at least one set of stacked arc plates and at least one magnet disposed adjacent switchable contacts and establishing a magnetic field across the stacked arc plates. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC voltage circuitry well above 125 VDC with reduced arcing intensity and duration. The disconnect device may be a compact fusible disconnect switch device having dual sets of switch contacts in the same current path.

An electrical contactor system includes a stationary contactor having a stationary contact, a moving contactor having a moving contact, a rotating member, a magnetic blow-out arc quenching device including a permanent magnet, and an isolation arc quenching device. The moving contactor is mounted on the rotating member and is rotatable between a connected position and a disconnected position. The moving contact is in electrical contact with the stationary contact when the moving contactor is rotated to the connected position, the moving contact is separated from the stationary contact when the moving contactor is rotated to the disconnected position. The permanent magnet is statically disposed in a vicinity of the stationary contactor for elongating an arc between the stationary contact and the moving contact by an electromagnetic force so as to extinguish the arc. The isolation arc quenching device pushes the arc toward the permanent magnet so as to force the arc to move to a vicinity of the permanent magnet.

The present invention relates to an electrical switching apparatus having at least one contact point, an arc-quenching device associated with the contact point, and an arc-blowing device to generate a magnetic blowout field. The arc-quenching device comprises a plurality of quenching elements, which are arranged distributed and spaced from each other in a first direction, wherein the quenching elements each comprise a permanent magnet. The arc arising when the contact point is opened is blown away from the contact point towards the quenching elements by the magnetic blowout field. The magnetic blowout field is at least partially generated or supported by the permanent magnets of the quenching elements. According to the invention, the permanent magnets of the quenching elements are offset with respect to each other in a second direction that is perpendicular to the first direction.

Provided is a relay having a relatively small dimension in an alignment direction of contacts, having an easily assembled structure, and capable of extinguishing arcs generated at each contact. The relay comprises: a first terminal having a pair of first contacts; a second terminal having a pair of second contacts which are opposed to the pair of first contacts so as to contact and separate from the respective first contacts; and a first magnet positioned on a side opposed to the pair of first contacts of the first terminal and between the pair of first contacts so that the first magnet does not contact the first terminal, wherein the first magnet is magnetized in a direction along which the pair of first contacts and the pair of second contacts are opposed.

A contact device for an electrical switch, and an electrical switch are disclosed. In an embodiment the contact device includes a first connection element, a second connection element, a movable contact bridge, at least two magnets configured to quench arcs which arise during a switching of the electrical switch, wherein the magnets are configured to generate a magnetic field in a first region which comprises at least one first contact region and one second contact region, in which, when the electrical switch is in a closed switching position, the first connection element and the second connection element are in contact with the contact bridge and at least one deflection element configured to distort the magnetic field such that a first arc when formed between the first connection element and the contact bridge, and a second arc when formed between the second connection element and the contact bridge, are forced into different directions, pointing away from each other.

An electromagnetic relay is provided with a housing; a first fixed contact terminal and a second fixed contact terminal secured to the housing; a movable contact accommodated in a chamber in the housing; a movable shaft with one end connected to the movable contact, and a solenoid configured to drive the movable shaft in a contact movement direction. The contact terminals including contact arrangement portions to which a first fixed contact point and a second fixed contact point are secured; and external terminals arranged outside the housing; and intermediate portions connecting the contact arrangement portions and the external terminals and held by the housing; the housing includes a pair of supports each supporting the first fixed contact point and the second fixed contact point.

An electromagnetic relay is provided with a housing; a first fixed contact terminal and a second fixed contact terminal secured to the housing; a movable contact accommodated in a chamber in the housing; a movable shaft with one end connected to the movable contact, and a solenoid configured to drive the movable shaft in a contact movement direction. The contact terminals including contact arrangement portions to which a first fixed contact point and a second fixed contact point are secured; and external terminals arranged outside the housing; and intermediate portions connecting the contact arrangement portions and the external terminals and held by the housing; the housing includes a pair of supports each supporting the first fixed contact point and the second fixed contact point.

A switch includes a first fixed contact, a second fixed contact, a movable contact, a drive shaft, a first outside yoke, a second outside yoke, a first inside yoke, a second inside yoke, and a permanent magnet. The permanent magnet magnetically couples the first outside yoke, the second outside yoke, the first inside yoke, and the second inside yoke, and produces a magnetic field component in a direction in which the first fixed contact point and the second fixed contact point are aligned, between the first fixed contact point and the first movable contact point and between the second fixed contact point and the second movable contact point.

Switching devices having a contact point, and an arc extinguishing chamber are used to blow switch arcs. The arc extinguishing chamber may have an exit opening through which plasma, generated inside the switching device by a switch arc developing when the contact point opens, exits out of the switching device. Inside the extinguish chamber a first arc guide plate may be provided that extends from the contact point toward the exit opening and which guides and stretches the switch arc. The switch arc may be initially stretched beyond the dimensions of the exit opening by the first arc guide plate and then the stretching may be reduced to be within the dimensions of the exit opening by an arc guide pin projecting from the first arc guide plate.