A circuit interrupter has first and second contacts that are actuatable relative to each other between a closed position wherein a power source and a load are in electrical communication and an open position wherein the power source and the load are not in electrical communication. An arc extinguisher is also provided for extinguishing an arc that develops in the vicinity of the contacts. An electromagnetic coil, when energized, generates a magnetic field that permeates an area where the arc develops, the magnetic field urging the arc toward the arc extinguisher regardless of a polarity of the contacts. An auxiliary switch is operably connected to the contacts, such that upon movement of the contacts relative to each other from the closed position toward the open position, the auxiliary switch is activated so as to energize a circuit feeding power to the electromagnetic coil, thereby generating the magnetic field.

An improved switching or contactor device with high arc extinguishing capabilities industrial and railways applications where a high current must be switched on and off is provided. The switching or contactor device includes, in a casing, a switch base portion including electrical switching means of a low voltage driving portion active on moving contacts; a high voltage portion including the moving contacts driven towards and away from each other with respect to a mutual contact position, said moving contacts being mounted at respective contact ends of a toggle mechanism which is movable by a low voltage driving portion, and a top arc chute extinguishing portion covering the high voltage portion.

A switch includes a first switch (100) including a first fixed contact (111) and a first movable contact (121) and a second switch (200) including a second fixed contact (211) and a second movable contact (221). The first fixed contact (111) and the first movable contact (121) come into contact and the second fixed contact (211) and the second movable contact (221) come into contact to turn on the switch. A magnet (320) is installed between the first switch (100) and the second switch (200).

An electrical contact switch chamber is disclosed. The electrical contact switch chamber includes two contacts, a wall having a base and sides surrounding the two contacts, and at least one insulation slot having an opening extending transversely relative to a direction between the contacts. The at least one insulation slot is disposed along a portion of the wall between the two contacts.

At a contact switch, an arc generated between two contacts is controlled. An arc binding mechanism 100 includes: a first contact 111 and a second contact 121 that are capable of being contacted and separated; and a substantially ring-shaped arc binder 130 that is made of a magnetic material, is electrically insulated from a circuit including the first contact and the second contact, has an axis in parallel with a direction of a gap between the first contact and the second contact in a case in which the first contact and the second contact are in a non-contact state, and is provided so as to encircle the gap.

At a contact switch, an arc generated between two contacts is controlled. An arc binding mechanism 100 includes: a first contact 111 and a second contact 121 that are capable of being contacted and separated; and a substantially ring-shaped arc binder 130 that is made of a magnetic material, is electrically insulated from a circuit including the first contact and the second contact, has an axis in parallel with a direction of a gap between the first contact and the second contact in a case in which the first contact and the second contact are in a non-contact state, and is provided so as to encircle the gap.

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 switch disconnect device having dual sets of switch contacts in the same current path.

An arc extinguishing unit and an air circuit breaker comprising same are disclosed. The arc extinguishing unit according to an embodiment of the present disclosure comprises an arc extinguishing magnet located above a grid. The arc extinguishing magnet forms a magnetic field in the arc extinguishing part and in a fixed contact and a movable contact that are located adjacent to the arc extinguishing part. An arc generated as the fixed contact and the movable contact are separated from each other receives an electromagnetic force in the formed magnetic field. The electromagnetic force passes through the grid and is formed in a direction facing the exterior of the arc extinguishing part. Thus, the generated arc may be quickly extinguished and moved.

A DC electrical circuit breaker includes first and second movable electrical contacts. The circuit breaker includes a magnetic circuit including a magnet and generating a magnetic field able to guide an electrical arc in the direction of a quenching chamber, and having for this purpose curved field lines extending perpendicularly to opposite lateral walls of an electrical arc formation chamber, these field lines converging, in a central region of the arc formation chamber containing the contact zones, toward the quenching chamber while extending parallel to the longitudinal plane.

A hybrid interrupter member for an electrical circuit, the interrupter member including a static interrupter component and an electromechanical interrupter component. The static component is mounted on a support carrying electrical contacts for the static component, the support being configured, on receiving a command to interrupt, to move in such a manner as to withdraw at least one of the electrical contacts from its respective pin, thereby forming the electromechanical interrupter component.