EP2905794B1 - Static contact support for circuit breaker and circuit breaker thereof - Google Patents
Static contact support for circuit breaker and circuit breaker thereof Download PDFInfo
- Publication number
- EP2905794B1 EP2905794B1 EP14197126.7A EP14197126A EP2905794B1 EP 2905794 B1 EP2905794 B1 EP 2905794B1 EP 14197126 A EP14197126 A EP 14197126A EP 2905794 B1 EP2905794 B1 EP 2905794B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- static contact
- circuit breaker
- base layer
- contact support
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static effect Effects 0.000 title claims description 69
- 230000003014 reinforcing effect Effects 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/025—Composite material having copper as the basic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
Definitions
- the present invention relates to a static contact support, in particular to a static contact support for a small circuit breaker.
- the current in a circuit under normal operating conditions can be established, carried and cut off by joining and separating a moving contact and a static contact.
- a micro circuit breaker can also carry and cut off an abnormal current within a given time in specified scenarios, for example under abnormal operating conditions such as overload and open circuit.
- a static contact is mounted on a static contact support.
- the static contact support carries a very large current, and must also channel the arc produced between the moving and static contacts to an arc extinguishing system disposed in the circuit breaker.
- Existing static contact supports are made of copper-plated steel or pure copper.
- Static contact mounting supports of copper-plated steel have very good mechanical strength, but high resistivity, so generate a lot of heat when carrying a current.
- Static mounting supports of pure copper have low resistivity, but also low mechanical strength and low magnetic permeability, so they are unable to extinguish the arc produced between the moving and static contacts.
- an electrical contact device in particular for low-voltage switches and contractors is disclosed.
- the electrical contact device comprises a contact element produced in one piece.
- Said contact element comprises in particular a first conducting area and a second contact area, said first area and said second area being produced with materials of different type.
- a moving element for a low voltage switching device and a switching device comprising said moving element comprises for each pole a housing unit suitable to receive an elastic element which interacts with an electrical contact.
- This latter comprises a first contact portion susceptible to contact a further electrical contact and a second portion connectable to a conductive element of the switching device.
- a switch-gear contact with electrodynamic reinforcement of contact pressure is disclosed, which comprises a resiliently mounted pivotal part for abutting engagement with a contact and supported on a rigid part having portions substantially at right angles, with the part parallel and close to the pivotal part so that the current assists contact pressure.
- breaking circuit In breaking circuit the contact is tilted by a spring so that the leading edge first makes contact before a break is made at the raised portion so that arcing at the portion is avoided. Owing to the hairpin shape of the current path the arc tends to be blown outwards by the electrodynamic forces.
- a multi-pole circuit breaker which includes a base and a cover of molded insulating material, an operating mechanism and a trip device.
- An object of the present invention is to provide a static contact support for a circuit breaker, which can help to extinguish an arc produced between a moving contact and a static contact in a circuit breaker.
- Another object of the present invention is to provide a circuit breaker which uses the static contact support.
- the present invention provides a static contact support for a circuit breaker, comprising a base layer and a reinforcing layer.
- the base layer is for transferring current passing through the circuit breaker.
- the reinforcing layer is superposed on the base layer, can provide the base layer with structural support, and can attract an arc produced between a moving contact and a static contact in the circuit breaker into an arc extinguishing mechanism of the circuit breaker, wherein the reinforcing layer and the base layer are superposed by a process for combining metals.
- an electrically conductive base layer on the one hand means that current flowing through the static contact support produces very little heat; on the other hand, good heat-conducting properties in the base layer enable the static contact support to cool the arc, helping to extinguish it.
- the reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
- the base layer is made of copper metal.
- the reinforcing layer is made of steel.
- the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1 - 2.5 : 1.
- the present invention also provides a circuit breaker, comprising a moving contact assembly and a static contact assembly.
- the moving contact assembly comprises a moving contact support and a moving contact disposed on the moving contact support.
- the static contact assembly comprises a static contact support as described above, and a static contact disposed on the static contact support and capable of contacting the moving contact.
- the side of the static contact support which is close to the moving contact assembly is the base layer, while the side of the static contact support which is remote from the moving contact assembly is the reinforcing layer.
- the static contact is connected to the base layer.
- Fig. 1 is a structural schematic diagram intended to illustrate a schematic embodiment of a static contact support for a circuit breaker.
- the circuit breaker comprises a static contact assembly 10 and a moving contact assembly 20.
- the static contact assembly 10 comprises a static contact support 12 and a static contact 14.
- the static contact 14 can be mounted on the static contact support 12.
- the static contact support 12 comprises a base layer 122 and a reinforcing layer 124; the reinforcing layer 124 is superposed on the base layer 122.
- the base layer 122 is made of a material with good heat-conducting and electricity-conducting properties, such as copper metal; the reinforcing layer 124 is made of a material with good mechanical strength and magnetic permeability, such as steel.
- the reinforcing layer 124 is superposed on the base layer 122 by a process for combining two metals.
- the moving contact assembly 20 comprises a moving contact support 22 and a moving contact 24; the moving contact 24 can be mounted on the moving contact support 22.
- the side of the static contact support 12 which is close to the moving contact assembly 20 is the base layer 122, while the side of the static contact support which is remote from the moving contact assembly 20 is the reinforcing layer 124.
- the static contact 14 which contacts the moving contact 24 is connected to the base layer 122.
- the path formed by the static contact and base layer for conducting electricity and heat is the shortest, while the reinforcing layer can provide the base layer with mechanical support, and attract the arc between the moving contact and static contact into an arc extinguishing mechanism.
- the base layer has good electricity-conducting and heat-conducting properties.
- the reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
- the static contact support for a circuit breaker, by adjusting the ratio of the thicknesses of the base layer and reinforcing layer, it is possible to adjust the heat-conducting properties, electricity-conducting properties, mechanical strength and magnetic permeability of the static contact support correspondingly.
- the base layer is thicker, the static contact support has better heat-conducting and electricity-conducting properties, whereas when the reinforcing layer is thicker, the static contact support has better mechanical strength and magnetic permeability.
- the ratio of the thickness of the base layer to the thickness of the reinforcing layer could be 2.5 : 1 or 1 : 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Description
- The present invention relates to a static contact support, in particular to a static contact support for a small circuit breaker.
- In a small circuit breaker, the current in a circuit under normal operating conditions can be established, carried and cut off by joining and separating a moving contact and a static contact. A micro circuit breaker can also carry and cut off an abnormal current within a given time in specified scenarios, for example under abnormal operating conditions such as overload and open circuit.
- A static contact is mounted on a static contact support. When the moving contact separates from the static contact, the static contact support carries a very large current, and must also channel the arc produced between the moving and static contacts to an arc extinguishing system disposed in the circuit breaker. Existing static contact supports are made of copper-plated steel or pure copper. Static contact mounting supports of copper-plated steel have very good mechanical strength, but high resistivity, so generate a lot of heat when carrying a current. Static mounting supports of pure copper have low resistivity, but also low mechanical strength and low magnetic permeability, so they are unable to extinguish the arc produced between the moving and static contacts.
- Further, in
WO 2006/120140 A1 an electrical contact device, in particular for low-voltage switches and contractors is disclosed. The electrical contact device comprises a contact element produced in one piece. Said contact element comprises in particular a first conducting area and a second contact area, said first area and said second area being produced with materials of different type. - Furthermore, in
WO 2010/079106 A1 a moving element for a low voltage switching device and a switching device comprising said moving element is disclosed. The moving element comprises for each pole a housing unit suitable to receive an elastic element which interacts with an electrical contact. This latter comprises a first contact portion susceptible to contact a further electrical contact and a second portion connectable to a conductive element of the switching device.
Further, inGB 1164164 A - Moreover, in
US 2,788,421 a multi-pole circuit breaker is disclosed which includes a base and a cover of molded insulating material, an operating mechanism and a trip device. - An object of the present invention is to provide a static contact support for a circuit breaker, which can help to extinguish an arc produced between a moving contact and a static contact in a circuit breaker.
- Another object of the present invention is to provide a circuit breaker which uses the static contact support.
- The present invention provides a static contact support for a circuit breaker, comprising a base layer and a reinforcing layer. The base layer is for transferring current passing through the circuit breaker. The reinforcing layer is superposed on the base layer, can provide the base layer with structural support, and can attract an arc produced between a moving contact and a static contact in the circuit breaker into an arc extinguishing mechanism of the circuit breaker, wherein the reinforcing layer and the base layer are superposed by a process for combining metals.
- In the static contact support of the circuit breaker, an electrically conductive base layer on the one hand means that current flowing through the static contact support produces very little heat; on the other hand, good heat-conducting properties in the base layer enable the static contact support to cool the arc, helping to extinguish it. The reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
- In another schematic embodiment of the static contact support of the circuit breaker, the base layer is made of copper metal. In another schematic embodiment of the static contact support of the circuit breaker, the reinforcing layer is made of steel.
- In another schematic embodiment of the static contact support of the circuit breaker, the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1 - 2.5 : 1.
- The present invention also provides a circuit breaker, comprising a moving contact assembly and a static contact assembly. The moving contact assembly comprises a moving contact support and a moving contact disposed on the moving contact support. The static contact assembly comprises a static contact support as described above, and a static contact disposed on the static contact support and capable of contacting the moving contact.
- In another schematic embodiment of the circuit breaker, the side of the static contact support which is close to the moving contact assembly is the base layer, while the side of the static contact support which is remote from the moving contact assembly is the reinforcing layer.
- In another schematic embodiment of the circuit breaker, the static contact is connected to the base layer.
- The accompanying drawing below merely illustrates and explains the present invention schematically, without defining the scope thereof.
- Key to labels
- 10
- static contact assembly
- 12
- static contact support
- 122
- base layer
- 124
- reinforcing layer
- 14
- static contact
- 20
- moving contact assembly
- 22
- moving contact support
- 24
- moving contact.
- To give a clearer understanding of the technical features, objects and effects of the present invention, particular embodiments thereof are now explained with reference to the accompanying drawings, in which identical labels denote identical components.
- In this text, "schematic" means "serving as a real instance, example or illustration". No drawing or embodiment described herein as "schematic" should be interpreted as being a more preferred or more advantageous technical solution.
- To make the drawings uncluttered, only those parts which are relevant to the present invention are shown schematically in each drawing; these parts do not represent the actual structure of the present invention as a product. Moreover, to make the drawings uncluttered and easy to understand, in certain drawings where there are components having the same structure or function, only one of these components is drawn schematically, or only one is labeled.
- In this text, "one" not only means "just this one", but may also mean "more than one".
- In this text, "upper", "lower", "front", "rear", "left" and "right", etc. are used only to indicate the positional relationship between relevant parts, without defining their absolute positions.
-
Fig. 1 is a structural schematic diagram intended to illustrate a schematic embodiment of a static contact support for a circuit breaker. As the figure shows, the circuit breaker comprises astatic contact assembly 10 and a movingcontact assembly 20. - The
static contact assembly 10 comprises astatic contact support 12 and astatic contact 14. Thestatic contact 14 can be mounted on thestatic contact support 12. - The
static contact support 12 comprises abase layer 122 and a reinforcinglayer 124; the reinforcinglayer 124 is superposed on thebase layer 122. Thebase layer 122 is made of a material with good heat-conducting and electricity-conducting properties, such as copper metal; the reinforcinglayer 124 is made of a material with good mechanical strength and magnetic permeability, such as steel. In a schematic embodiment of the static contact support for a circuit breaker, the reinforcinglayer 124 is superposed on thebase layer 122 by a process for combining two metals. - The moving
contact assembly 20 comprises a movingcontact support 22 and a movingcontact 24; the movingcontact 24 can be mounted on the movingcontact support 22. - In a schematic embodiment of the static contact support for a circuit breaker, the side of the
static contact support 12 which is close to the movingcontact assembly 20 is thebase layer 122, while the side of the static contact support which is remote from the movingcontact assembly 20 is the reinforcinglayer 124. Thestatic contact 14 which contacts the movingcontact 24 is connected to thebase layer 122. With such an arrangement, the path formed by the static contact and base layer for conducting electricity and heat is the shortest, while the reinforcing layer can provide the base layer with mechanical support, and attract the arc between the moving contact and static contact into an arc extinguishing mechanism. In the static contact support for a circuit breaker, the base layer has good electricity-conducting and heat-conducting properties. On the one hand, this means that current flowing through the static contact support produces very little heat; on the other hand, the good heat-conducting properties of the base layer enable the static contact support to cool the arc, helping to extinguish it. The reinforcing layer has good mechanical strength and magnetic permeability. On the one hand, this means it can reinforce the mechanical strength of the base layer; on the other hand, the magnetically permeable reinforcing layer can channel the arc into the arc extinguishing mechanism of the circuit breaker, so it is extinguished quickly. Furthermore, being superposed, the base layer and reinforcing layer can be conveniently fitted into the circuit breaker.
In a schematic embodiment of the static contact support for a circuit breaker, by adjusting the ratio of the thicknesses of the base layer and reinforcing layer, it is possible to adjust the heat-conducting properties, electricity-conducting properties, mechanical strength and magnetic permeability of the static contact support correspondingly. When the base layer is thicker, the static contact support has better heat-conducting and electricity-conducting properties, whereas when the reinforcing layer is thicker, the static contact support has better mechanical strength and magnetic permeability. For example, the ratio of the thickness of the base layer to the thickness of the reinforcing layer could be 2.5 : 1 or 1 : 1. - It should be understood that although the description given herein is based on different embodiments, it is by no means the case that each embodiment comprises just one independent technical solution. The description is written in this way purely for the sake of clarity. Those skilled in the art should consider the description in its entirety; technical solutions from different embodiments can also be suitably combined to form other embodiments capable of being understood by those skilled in the art.
- The detailed explanations set out above are merely specific explanations of feasible embodiments, and are not intended to limit the scope of protection of the present invention.
Claims (7)
- A static contact support (12) for a circuit breaker, characterized in that it comprises:a base layer (122) for transferring current passing through the circuit breaker; anda reinforcing layer (124), which is superposed on the base layer (122) and can provide the base layer (122) with structural support, characterized in that the reinforcing layer (124) can attract an arc produced between a moving contact and a static contact in the circuit breaker into an arc extinguishing mechanism of the circuit breaker, wherein the reinforcing layer (124) and the base layer (122) are superposed by a process for combining two metals.
- The static contact support according to claim 1, wherein the base layer (122) is made of copper metal.
- The static contact support according to any of the preceding claims, wherein the reinforcing layer (124) is made of steel.
- The static contact support according to any of the preceding claims, wherein the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1 - 2.5 : 1.
- A circuit breaker, characterized in that it comprises:a moving contact assembly (20), comprising a moving contact support (22) and a moving contact (24) disposed on the moving contact support (22); anda static contact assembly (10), comprising a static contact support (12) according to any one of claims 1 to 5 and a static contact (14) disposed on the static contact support (12) and capable of contacting the moving contact (24).
- The circuit breaker according to claim 5, wherein the side of the static contact support (12) which is close to the moving contact assembly (20) is the base layer (122), while the side of the static contact support which is remote from the moving contact assembly (20) is the reinforcing layer (124).
- The circuit breaker according to claim 5 or 6, wherein the static contact (14) is connected to the base layer (122).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410006862.5A CN104766770B (en) | 2014-01-07 | 2014-01-07 | The stationary contact bracket and its breaker of breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2905794A1 EP2905794A1 (en) | 2015-08-12 |
EP2905794B1 true EP2905794B1 (en) | 2018-04-25 |
Family
ID=52013957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14197126.7A Active EP2905794B1 (en) | 2014-01-07 | 2014-12-10 | Static contact support for circuit breaker and circuit breaker thereof |
Country Status (2)
Country | Link |
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EP (1) | EP2905794B1 (en) |
CN (1) | CN104766770B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106783428A (en) * | 2016-10-13 | 2017-05-31 | 武汉船用电力推进装置研究所(中国船舶重工集团公司第七二研究所) | A kind of combined repulsion dish for electromagnetic repulsion mechanism |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1164164A (en) * | 1915-03-01 | 1915-12-14 | William Borer | Wrench. |
US2788421A (en) * | 1953-05-12 | 1957-04-09 | Westinghouse Electric Corp | Circuit breaker contact structure |
DE1175776B (en) | 1962-01-31 | 1964-08-13 | Siemens Ag | Contact bridge for electrical switchgear |
DE3142883A1 (en) | 1981-10-29 | 1983-05-11 | Schiele Kg, 7746 Hornberg | Electrical switch contact |
EP0079977A1 (en) | 1981-11-21 | 1983-06-01 | Sprecher & Schuh AG | Contact piece for an electric switch apparatus, in particular for a protrective switch |
DE19830232A1 (en) | 1998-07-07 | 2000-01-13 | Abb Research Ltd | Current contact arrangements of a current switch |
DE10019121A1 (en) | 2000-04-18 | 2001-10-25 | Moeller Gmbh | Contact for electrical switch, has carrier region fabricated from one material with contacts of another material, and is produced by sintering process. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT251684B (en) * | 1963-09-11 | 1967-01-10 | Licentia Gmbh | Electrical contact piece |
CN2188237Y (en) * | 1993-12-09 | 1995-01-25 | 中南工学院 | Knife switch with strengthened elastic contact conductor element |
ITBG20050020A1 (en) * | 2005-05-11 | 2006-11-12 | Abb Service Srl | MULTI-COMPONENT ELECTRIC CONTACT |
CN2924772Y (en) * | 2005-12-05 | 2007-07-18 | 北京Abb低压电器有限公司 | Static contact base, arc-quenching system for miniature circuit breaker and miniature circuit breaker |
ITMI20090011A1 (en) * | 2009-01-08 | 2010-07-09 | Abb Spa | MOBILE CREW FOR A LOW VOLTAGE INTERRUPT DEVICE AND INTERRUPTIVE DEVICE INCLUDING SUCH MOBILE CREW. |
CN201622989U (en) * | 2009-11-26 | 2010-11-03 | 无锡唯特电气技术有限公司 | Miniature circuit breaker with high breaking capacity |
KR101784023B1 (en) * | 2010-02-12 | 2017-10-10 | 후루카와 덴키 고교 가부시키가이샤 | Silver-coated composite material for movable contact component, method for producing same, and movable contact component |
CN201673850U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Load switch main-loop movable, static contact device |
CN202473620U (en) * | 2012-03-12 | 2012-10-03 | 毕新华 | Copper and steel integrated static contact |
CN202585291U (en) * | 2012-05-16 | 2012-12-05 | 上海良信电器股份有限公司 | Integrated thermomagnetic system supporting frame of small-size circuit breaker |
-
2014
- 2014-01-07 CN CN201410006862.5A patent/CN104766770B/en active Active
- 2014-12-10 EP EP14197126.7A patent/EP2905794B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1164164A (en) * | 1915-03-01 | 1915-12-14 | William Borer | Wrench. |
US2788421A (en) * | 1953-05-12 | 1957-04-09 | Westinghouse Electric Corp | Circuit breaker contact structure |
DE1175776B (en) | 1962-01-31 | 1964-08-13 | Siemens Ag | Contact bridge for electrical switchgear |
DE3142883A1 (en) | 1981-10-29 | 1983-05-11 | Schiele Kg, 7746 Hornberg | Electrical switch contact |
EP0079977A1 (en) | 1981-11-21 | 1983-06-01 | Sprecher & Schuh AG | Contact piece for an electric switch apparatus, in particular for a protrective switch |
DE19830232A1 (en) | 1998-07-07 | 2000-01-13 | Abb Research Ltd | Current contact arrangements of a current switch |
DE10019121A1 (en) | 2000-04-18 | 2001-10-25 | Moeller Gmbh | Contact for electrical switch, has carrier region fabricated from one material with contacts of another material, and is produced by sintering process. |
Also Published As
Publication number | Publication date |
---|---|
EP2905794A1 (en) | 2015-08-12 |
CN104766770B (en) | 2017-09-08 |
CN104766770A (en) | 2015-07-08 |
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