An electromagnetic relay has a contact device and an electromagnet device. An electromagnetic relay has stators which are a pair of rod-like members, and a mover. The mover may face the side of the stator. A housing supports the stator and accommodates the mover. A yoke is fixed to the housing so as to face the movable facing surface and contains a soft magnetic material.

An interrupter includes a gas producer, an actuator pin, and an electrical conductor. The electrical conductor includes a first terminal portion, a first separable portion, a second terminal portion, and a second separable portion. The second separable portion is electrically connected to the first separable portion in parallel. A first timing when the first separable portion starts to be cut off from the first terminal portion is earlier than a second timing when the second separable portion starts to be cut off from the second terminal portion.

A mono or bidirectional contactor device for applications involving switching of the power supply for high current and/or voltage electrical loads, of the type comprising a containing and protective casing made of synthetic plastic insulating material with a bottom wall from which there extends an actuator portion, comprising a coil and auxiliary contacts, an intermediate portion for housing fixed and movable contact poles, and an upper arc chute portion for dissipating the electric arc. Advantageously the casing is chosen so as to have a flat parallelepiped form with the bottom wall extending at 90 with respect to a side wall of the casing on the shorter side and a support plate for the contactor is connected to the outer surface of the base wall or of said side wall so as to support the casing substantially with a vertical extension from the horizontal plane or projecting from the vertical plane.

A mono or bidirectional contactor device for applications involving switching of the power supply for high current and/or voltage electrical loads, of the type comprising a containing and protective casing made of synthetic plastic insulating material with a bottom wall from which there extends an actuator portion, comprising a coil and auxiliary contacts, an intermediate portion for housing fixed and movable contact poles, and an upper arc chute portion for dissipating the electric arc. Advantageously the casing is chosen so as to have a flat parallelepiped form with the bottom wall extending at 90 with respect to a side wall of the casing on the shorter side and a support plate for the contactor is connected to the outer surface of the base wall or of said side wall so as to support the casing substantially with a vertical extension from the horizontal plane or projecting from the vertical plane.

An electromagnetic relay includes a first fixed terminal, a first fixed contact, a second fixed terminal, a second fixed contact, a first movable contact, a second movable contact, a movable contact piece, a drive device, an outer magnet, and an inner magnet. The second fixed terminal is disposed apart from the first fixed terminal in a first direction. The first movable contact and the second movable contact are disposed to face the first fixed contact and the second fixed contact, respectively, in a second direction. The outer magnet generates a magnetic field to elongate an arc generated between the first fixed contact and the first movable contact and between the second fixed contact and the second movable contact. The inner magnet generates a magnetic field to elongate the arc in a third direction.

Embodiments of the present disclosure provide a stationary contact assembly and a corresponding switch contact. The stationary contact assembly comprises: a stationary contact body (21); a stationary contact point (23) placed on the stationary contact body (21); and an arc-guiding member (25) fixed on the stationary contact body (21) and including an arc guiding portion (251), the arc guiding portion (251) comprising a first end (A) and a second end (B) that are opposite to each other, the first end (A) being close to the stationary contact point (23), a direction form the first end (A) to the second end (B) defining a main movement direction (F) of arc. The arc guiding portion (251) of the arc-guiding member (25) comprises an arc-guiding section (2511) at the first end (A), the arc-guiding section is adapted to guide the arc away from the stationary contact point (23) into the arc guiding portion (251), and the stationary contact point (23) is close to or in contact with the arc-guiding section (2511) in the main movement direction (F) of the arc. The stationary contact assembly of the embodiments of the present disclosure has an improved arc-guiding member that can guide the arc to quickly leave the contact point, enhance the mechanical strength of the stationary contact and reduce the production cost of the contact.

An electrical switch. The electrical switch comprises at least one fixed contact, a movable contact contacting the fixed contact, and at least one extinguishing apparatus positioned after the fixed contact in an opening direction of the movable contact. A permanent magnet is further positioned after the extinguishing apparatus in the opening direction of the movable contact.

An electromagnetic relay includes a base frame including a main body supporting a fixed element, and a bottom plate having a plate thickness direction in an extending direction orthogonal to a central-axis line direction. An intermediate cover includes a covering plate facing a contact mechanism unit. An outer cover includes a top plate facing the bottom plate across the contact mechanism unit, and a first side plate extending from one end of the top plate and facing the covering plate. A first gap between the covering plate and the bottom plate in the extending direction and a second gap between the covering plate and the top plate in the extending direction are arranged to be substantially symmetric across the covering plate in the extending direction, the first gap and the second gap being on the first side plate.

An electromagnetic relay includes a base frame including a main body supporting a fixed element, and a bottom plate having a plate thickness direction in an extending direction orthogonal to a central-axis line direction. An intermediate cover includes a covering plate facing a contact mechanism unit. An outer cover includes a top plate facing the bottom plate across the contact mechanism unit, and a first side plate extending from one end of the top plate and facing the covering plate. A first gap between the covering plate and the bottom plate in the extending direction and a second gap between the covering plate and the top plate in the extending direction are arranged to be substantially symmetric across the covering plate in the extending direction, the first gap and the second gap being on the first side plate.

A high-voltage DC relay with permanent magnet arc extinguishing function includes two static contact leading-out terminals having static contacts; a movable contact piece having movable contacts; first permanent magnets around the movable contact piece, wherein a side having polarity of the first permanent magnets faces the contacts such that arc extinction is implemented using a horizontal magnetic field formed by the first permanent magnets; and third permanent magnets provided on the static contact leading-out terminals, the polarity of the sides facing the contacts of the third permanent magnets is opposite to that of the first permanent magnets such that magnetic field strength at the contacts can be enhanced by a longitudinal magnetic field formed by the first and the third permanent magnets, and arc extinction can be implemented.