The present disclosure discloses a high-voltage DC relay with an auxiliary contact. The high-voltage DC relay includes a cover, a main contact leading-out terminal, a pushing rod assembly, a main movable contact piece, an auxiliary contact leading-out terminal and an auxiliary movable contact piece. The main contact leading-out terminal and the auxiliary contact leading-out terminal are respectively fixed on a top wall of the cover and their bottom ends respectively extend into a cavity of the cover. The main movable contact piece and the auxiliary movable contact piece are respectively matched with corresponding bottom ends of the main contact leading-out terminal and the auxiliary contact leading-out terminal. Two auxiliary contact leading-out terminals are arranged on both sides of a connecting line between two main contact leading-out terminals, and the auxiliary movable contact piece is also connected with a plastic body.

An electromechanical switch includes first and second stationary contacts and a movable contact. Each of the first and second stationary contacts has a respective protrusion at a mating end thereof. The movable contact defines a first depression and a second depression along a mating side thereof. The movable contact is reciprocally movable into and out of a closed position relative to the first and second stationary contacts. In the closed position, the mating side of the movable contact engages the mating ends of the first and second stationary contacts such that the protrusion of the first stationary contact projects into the first depression and the protrusion of the second stationary contact projects into the second depression.

An electromechanical switch includes first and second stationary contacts and a movable contact. Each of the first and second stationary contacts has a respective protrusion at a mating end thereof. The movable contact defines a first depression and a second depression along a mating side thereof. The movable contact is reciprocally movable into and out of a closed position relative to the first and second stationary contacts. In the closed position, the mating side of the movable contact engages the mating ends of the first and second stationary contacts such that the protrusion of the first stationary contact projects into the first depression and the protrusion of the second stationary contact projects into the second depression.

A switching appliance that includes a first housing and a second housing on one side of the first housing to accommodate an auxiliary contact mechanism, the first housing having a lower housing, and an upper housing to accommodate a main contact mechanism; the auxiliary contact mechanism having a linkage member connected to the main contact mechanism; a mounting leg that extends to the side surface of the side wall of the lower housing is arranged at the bottom of the second housing; a first clamping groove in the side surface, facing the lower housing, of the mounting leg, and a second clamping groove opposite the first clamping groove formed in the side wall of the lower housing; the mounting leg is connected to the side wall of the lower housing through a connector, which fixes the second housing and the first housing.

A contactor includes first and second fixed contacts coupled to a housing having mating ends located in the cavity. The contactor includes a movable contact movable within the cavity between a mated position and an unmated position. The movable contact engages the second mating end in the mated position and is separated from the second fixed contact in the unmated position. The contactor includes a coil assembly in the cavity operated to move the movable contact. The contactor includes a magnetic shroud coupled to at least one of the movable contact and the second fixed contact to provide a magnetic holding force to hold the movable contact relative to the second fixed contact in the mated position.

A contactor includes first and second fixed contacts coupled to a housing having mating ends located in the cavity. The contactor includes a movable contact movable within the cavity between a mated position and an unmated position. The movable contact engages the second mating end in the mated position and is separated from the second fixed contact in the unmated position. The contactor includes a coil assembly in the cavity operated to move the movable contact. The contactor includes a magnetic shroud coupled to at least one of the movable contact and the second fixed contact to provide a magnetic holding force to hold the movable contact relative to the second fixed contact in the mated position.

The present invention refers to a switch device with at least one contact point, the contact point having a first contact and a second contact, the first and second contacts being spaced apart from one another in an open position and electrically contacting one another in a closed position, the contact point being assigned an arc blowout device for generating a magnetic blowing field, the blowout field being such that an arc produced when the contact point is opened is blown away from the contact point. In accordance with the invention, at least one of the two contacts is provided with a non-conductive cover on a non-contact-facing side which faces away from the other contact, which cover prevents a base point of the arc from crossing the non-contact-facing side.

An electromagnetic relay includes a fixed terminal, a movable contact piece, a housing, and a heat dissipation structure. The fixed terminal includes a first surface, a second surface opposite the first surface, and a fixed contact disposed on the first surface. The movable contact piece includes a movable contact that is configured to contact the fixed contact. The housing includes an accommodation space accommodating a portion of the fixed terminal, the fixed contact, and the movable contact piece. The heat dissipation structure includes a heat dissipation space that is provided on the second surface of the fixed terminal for dissipating the heat of the fixed terminal to an outside of the accommodation space.

An electromagnetic relay includes a fixed terminal, a movable contact piece, a housing, and a heat dissipation structure. The fixed terminal includes a first surface, a second surface opposite the first surface, and a fixed contact disposed on the first surface. The movable contact piece includes a movable contact that is configured to contact the fixed contact. The housing includes an accommodation space accommodating a portion of the fixed terminal, the fixed contact, and the movable contact piece. The heat dissipation structure includes a heat dissipation space that is provided on the second surface of the fixed terminal for dissipating the heat of the fixed terminal to an outside of the accommodation space.

An electromagnetic relay includes a pair of fixed terminals, a movable contact piece, and a magnet portion. The pair of fixed terminals includes fixed contact. The movable contact piece that includes a movable contact disposed facing the fixed contact and that is movable in a first direction in which the movable contact contacts the fixed contact and in a second direction in which the movable contact separates from fixed contact. The magnet portion generating a magnetic field for extending an arc generated between the fixed contact and the movable contact. At least one of a corner portion in the first direction side of the fixed terminal located in an arc extension direction in which the arc is extended or a corner portion in the second direction side of the movable contact piece located in the arc extension direction has a chamfered shape in a range where the arc passes through.