# US 10,483,054 B2 · Mono or bidirectional contactor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,054 B2 - Document ID: US10483054B2 - Status: Granted - Kind: B2 - Application number: 15/946,256 - Filed: 2018-04-05 - Published: 2019-07-18 - Granted: 2019-11-19 - Earliest claimed: 2018-01-12 - Assignees: Telarc S.r.l. - Applicants: Telarc S.r.l. - Inventors: Marco Corna - Web page: https://patentgrep.com/patent/US10483054B2 ## CPC - H01H 9/44: using blow-out magnet - H01H 9/0207: {Adjustable mounting of casings} - H01H 9/34: Stationary parts for restricting or subdividing the arc, e.g. barrier plate - H01H 50/045: {Details particular to contactors (H01H50/042 takes precedence)} - H01H 2223/044: Protecting cover - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract 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. ## Claims ### Claim 1 A mono- or bi-directional contactor device for applications involving switching of a power supply for high current and/or voltage electrical loads, comprising a containing and protective casing made of synthetic plastic insulating material, said casing having a bottom wall from which there extends an actuator portion, said 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 an electric arc; said casing having a flat parallelepiped form, the bottom wall of the casing extending at 90° with respect to a side wall of the casing, said side wall being on a shorter side of said flat parallelepiped form; a support plate for the contactor being connected to an outer surface of the bottom wall or to an outer surface of said side wall, so as to support the casing as a vertical extension from a horizontal plane or as a horizontal projection from a vertical plane, and wherein said arc chute portion occupies a quadrant of the parallelepiped form which is situated at a top and/or side with respect to said bottom wall and/or said side wall. ### Claim 2 (depends on 1) Contactor device according to claim 1, wherein the bottom wall of the casing is connected to a side wall via a right-angled corner. ### Claim 3 (depends on 1) Contactor device according to claim 1, wherein said arc chute portion is a segment of predefined angular extension mounted in a quadrant of said parallelepiped shaped casing. ### Claim 4 (depends on 3) Contactor device according to claim 3, wherein said predefined angular extension is a 90° circle segment. ### Claim 5 (depends on 1) Contactor device according to claim 1, wherein the support plate has a longitudinal extension greater than the longitudinal extension of the base or the longitudinal extension or height of said side wall of the casing. ### Claim 6 (depends on 3) Contactor device according to claim 3, wherein said segment is a protrusion at the corner or on the side with dimensions depending on the electric arc dissipation capacity and projecting beyond the side walls of the casing of the contactor, except for the shorter side. ### Claim 7 (depends on 6) Contactor device according to claim 6, wherein said segment has a curved outer surface. ### Claim 8 (depends on 1) Contactor device according to claim 1, wherein it comprises a cavity along at least three sides of the casing for receiving at least one electrical interconnection strip intended to electrically connect respectively the fixed pole or the movable pole to a corresponding terminal part which is accessible on the outside of the contactor for connection to an electrical power supply network. ### Claim 9 (depends on 8) Contactor device according to claim 8, wherein it has two strips, one for the fixed pole and one for the movable pole, said strips being housed inside respective sections of said cavity, and said terminals, i.e. only the free ends of each strip, projecting through associated outlet openings in said casing. ### Claim 10 (depends on 9) Contactor device according to claim 9, wherein said terminals project either from a same side wall of the casing or from opposite side walls. ### Claim 11 (depends on 1) Contactor device according to claim 1, wherein said coil and auxiliary contacts are housed in the actuator portion of the contactor with the longitudinal axis of the coil extending parallel to the bottom wall. ### Claim 12 (depends on 1) Contactor device according to claim 1, wherein said coil has a stem acting on a rod pivotably mounted at a point of said actuator portion and opposite end connected by means of a connecting arm to a control linkage for guiding said movable contact pole. ### Claim 13 (depends on 1) Contactor device according to claim 1, wherein a longitudinal extension of the bottom wall and a height-wise extension of the side wall coincide. ### Claim 14 (depends on 1) Contactor device according to claim 1, wherein it is a magnetic blow-out contactor incorporating a blow-out coil installed in the vicinity of the fixed pole. ### Claim 15 A mono- or bi-directional contactor device for switching on and off the power supply for high current and/or voltage electrical loads, comprising: a containing and protective casing made of synthetic plastic insulating material; said casing having a flat parallelepiped form with at least two lateral walls of the casing extending at 90° one with respect to the other; one of said two lateral walls being on a shorter side of the casing; an actuator portion including a coil and auxiliary contacts in said casing, an intermediate portion for housing fixed and movable contact poles in said casing, and an arc chute portion for dissipating an electric arc at one end of said casing; a support plate for the casing connected an outer surface one of said walls so as to support the casing as a vertical extension from a horizontal plane or as a horizontal projection from a vertical plane; and wherein a bottom wall of the casing is connected to a side wall via a right-angled corner. ### Claim 16 (depends on 15) Contactor device according to claim 15, wherein said arc chute portion occupies a quadrant of the parallelepiped form which is situated at the top and/or side with respect to said bottom wall and/or said side wall. ### Claim 17 (depends on 15) Contactor device according to claim 15, wherein said arc chute portion is a segment of predefined angular extension mounted in a quadrant of said parallelepiped shaped casing. ### Claim 18 (depends on 17) Contactor device according to claim 17, wherein said predefined angular extension is a 90° circle segment. ### Claim 19 (depends on 15) Contactor device according to claim 15, wherein the support plate has a longitudinal extension greater than the longitudinal extension of the casing base or the longitudinal extension or height of said side wall of the casing. ### Claim 20 (depends on 17) Contactor device according to claim 17, wherein said segment is a protrusion at the corner or on the side with dimensions depending on the electric arc dissipation capacity and projecting beyond the side walls of the casing of the contactor, except for the shorter side. ### Claim 21 (depends on 20) Contactor device according to claim 20, wherein said segment has a curved outer surface. ### Claim 22 (depends on 15) Contactor device according to claim 15, wherein it comprises a cavity along at least three sides of the casing for receiving at least one electrical interconnection strip intended to electrically connect respectively the fixed pole or the movable pole to a corresponding terminal part which is accessible on the outside of the contactor for connection to an electrical power supply network. ### Claim 23 (depends on 22) Contactor device according to claim 22, wherein it has two strips, one for the fixed pole and one for the movable pole, said strips being housed inside respective sections of said cavity, and said terminals, i.e. only the free ends of each strip, projecting through associated outlet openings in said casing. ### Claim 24 (depends on 23) Contactor device according to claim 23, wherein said terminals project either from a same side wall of the casing or from opposite side walls. ### Claim 25 (depends on 15) Contactor device according to claim 15, wherein said coil and auxiliary contacts are housed in the actuator portion of the contactor with the longitudinal axis of the coil extending parallel to the bottom wall. ### Claim 26 (depends on 15) Contactor device according to claim 15, wherein said coil has a stem acting on a rod pivotably mounted at a point of said actuator portion and opposite end connected by means of a connecting arm to a control linkage for guiding said movable contact pole. ### Claim 27 (depends on 15) Contactor device according to claim 15, wherein a longitudinal extension of the bottom wall and a height-wise extension of the side wall coincide. ### Claim 28 (depends on 15) Contactor device according to claim 15, wherein it is a magnetic blow-out contactor incorporating a blow-out coil installed in the vicinity of the fixed pole.