A contactor includes an housing having a cavity, fixed contacts received in the cavity having mating ends in the cavity, a movable contact movable within the cavity between a mated position and an unmated position and engaging the fixed contacts to electrically connect the fixed contacts in the mated position, and a coil assembly in the cavity operated to move the movable contact between the unmated position and the mating position. The contactor includes an arc suppressor in the cavity. The arc suppressor includes a multi-pole magnet having a first magnet having a first pole and a second magnet having a second pole. The first magnet is integrated with the second magnet in a unitary magnet body.

A DC circuit breaker having an arc blowout device according to the present invention comprises: a fixed contact; a movable contact operating so as to make contact with or separate from the fixed contact; an operation part for driving the movable contact; and a blowout device which provides a magnetic field in a direction crossing the arc generated when the movable contact is separated, wherein the blowout device includes: a pair of core plates arranged side by side on both sides of the movable contact and the fixed contact; core rods integrally connected to the core plates, respectively, and having symmetrical shapes to each other; and a blowout coil coupled to one of the core rods.

A DC circuit breaker having an arc blowout device according to the present invention comprises: a fixed contact; a movable contact operating so as to make contact with or separate from the fixed contact; an operation part for driving the movable contact; and a blowout device which provides a magnetic field in a direction crossing the arc generated when the movable contact is separated, wherein the blowout device includes: a pair of core plates arranged side by side on both sides of the movable contact and the fixed contact; core rods integrally connected to the core plates, respectively, and having symmetrical shapes to each other; and a blowout coil coupled to one of the core rods.

A switching device in a vacuum switching tube or for arc quenching in gases. The switching device has an arc-quenching device. There is also described a method for operating a switching device in a vacuum switching tube or in arc quenching in gases, which switching device has an arc-quenching device for medium-voltage, low-voltage and/or high-voltage applications.

The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.

An electrical contactor has an arc extinguishing component. The electrical contactor includes a first electrical contact and a second electrical contact that, when the contactor is open, define a gap therebetween. The arc extinguishing component includes a magnet adjacent a first side of the gap and an electrically non-conductive shutter adjacent an opposing second side of the gap. The electrically non-conductive shutter capable of reciprocating from a first position to a second position wherein the first position is outside of the gap and the second position is within the gap.

An electrical switch. The electrical switch includes at least one fixed contact and a movable contact contacting the fixed contact. At least one shutter element is arranged to move in synchronism with the movable contact. The shutter element is positioned in an extended position between the fixed contact and the movable contact and in a contracted position outside the patch of the movable contact allowing the movable contact to turn from the open position to the closed position.

Disclosed herein are contactor devices, for example, devices that can be utilized as switching elements, comprising fixed contacts that are electrically isolated from one another and one or more moveable contacts that are configured to electrically contact the fixed contacts to provide an electrical connection between them. Movement of the fixed contacts into and out of electrical contact with the fixed contacts controls flow of electricity through the devices. The contactor devices also include pyrotechnic disconnect elements, which function as a circuit break or fuse-like element to protect against overcurrent. When the electrical current through the contactor device reaches a threshold level, a pyrotechnic charge activates, permanently forcing the moveable contacts out of electrical contact with the fixed contacts.

A compact fusible disconnect switch device includes a magnetic arc deflection assembly including pairs of magnets disposed about a mechanical switch contact assembly. The magnetic arc deflection assembly facilitates reliable connection and disconnection of DC circuitry operating at a voltage well above 125 VDC with reduced arcing intensity and duration. The pairs of magnets may apply magnetic fields in directions opposing one another to deflect electrical arcs in different directions at different locations in the mechanical switch contact assembly to facilitate high voltage DC switching operation.

A quenching plate arrangement for a switching device has plural quenching plates for arc splitting and/or lengthening; a guiding plate, the quenching plates being arranged substantially next to one another to firm a stack, the guiding plate laterally delimiting the stack, the guiding plate protruding beyond the quenching plates in a main extension direction; and a DC-suitable switching device having a first contact and a second contact, at least the second contact being movable relative to the first contact, a first and second running rail arrangement for conducting an arc with respective first and second current directions, the two running rail arrangements having respective first and second running rails, the two first and two second running rails respectively running in opposite directions from the first and second contacts, and the first running rails being connected in an electrically conducting manner in closed loop form, with the quenching plate arrangement.