CN102709131A - Double-mechanism super-small 1P plus N electric leakage circuit breaker - Google Patents
Double-mechanism super-small 1P plus N electric leakage circuit breaker Download PDFInfo
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- CN102709131A CN102709131A CN2012101969687A CN201210196968A CN102709131A CN 102709131 A CN102709131 A CN 102709131A CN 2012101969687 A CN2012101969687 A CN 2012101969687A CN 201210196968 A CN201210196968 A CN 201210196968A CN 102709131 A CN102709131 A CN 102709131A
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- utmost point
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- electric leakage
- lever
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- 230000001681 protective effect Effects 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
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Abstract
The invention discloses a double-mechanism super-small 1P plus N electric leakage circuit breaker, which comprises an L-pole circuit breaker unit and an N-pole electric leakage protection unit, wherein the L-pole circuit breaker unit and the N-pole electric leakage protection unit are respectively independent devices and provided with the same independent operating mechanism; a handle of the L-pole circuit breaker unit is linked with a handle of the N-pole electric leakage protection unit through a pin shaft; and a tripper is switched off and linked with pin shafts through lock catches so as to simultaneously switch off and protect the L-pole circuit breaker unit and the N-pole electric leakage protection unit. The double-mechanism super-small 1P plus N electric leakage circuit breaker has the advantages that the size is small and the thickness is thin; the service life is long and the stability and the reliability are higher; the structure is unique, and the L-pole circuit breaker unit can be separated out to serve as a 1P circuit breaker; an electric leakage indication function and an electric leakage reset function are performed; and accessories can be assembled at the L-pole circuit breaker unit and the N-pole electric leakage protection unit, so the multifunctional electric leakage circuit breaker is formed.
Description
Technical field
The present invention relates to a kind of RCCB, particularly a kind of extra small 1P+N RCCB of two-shipper structure that integrates overload, short circuit and creepage protection function.
Background technology
The 1P+N RCCB is in continuous development, and volume is more and more littler, and performance also improves constantly; Existing 1P+N RCCB has only an operating mechanism, and circuit breaker earth leakage protective and short-circuit protection are shared dropout modes, shared moving iron core, static iron core, iron core spring, push rod; The short circuit tripping coil wraps in outside the electric leakage tripping coil, and its shortcoming is shared dropout push rod, iron core; Spring has reduced short circuit and the useful life of leaking electricity and threading off and protecting, and electronic circuit board receives the interference of short circuit tripping coil easily; Reduce the reliability of earth leakage protective performance, stability also reduces greatly; And electric leakage is threaded off and the short circuit shared iron core spring of threading off, and has reduced the sensitivity that electric leakage is threaded off.Also having a kind of electrical leakage tripping device and short circuit tripping mechanism is what to separate, but they are arranged above and below and have taken very large space, and it is very little that arc-extinguish chamber is done, and arc extinction performance is very low, and breaking capacity is not high yet, can't satisfy market to the premium quality product demand.Assembly unit simultaneously annex in existing 1P+N RCCB two sides has influenced applying of RCCB miscellaneous function.
Summary of the invention
Technical problem to be solved by this invention is to provide the two-shipper structure with dual operation machine that a kind of volume is little, breaking capacity is high extra small 1P+N RCCB.
In order to solve above technical problem; The invention provides the extra small 1P+N RCCB of a kind of two-shipper structure; Comprise L utmost point breaker unit, N utmost point residual current protective unit, said L utmost point breaker unit and N utmost point residual current protective unit are respectively independent device, have identical independent operating mechanism; The handle of the handle of L utmost point breaker unit and N utmost point residual current protective unit is threaded off to break off through snap close and pivot pin interlock and is realized that the L utmost point and the N utmost point break off protection simultaneously through the pivot pin interlock.
The framework of said L utmost point breaker unit and N utmost point residual current protective unit is provided with the assembly unit hole, realizes multistage linking.On the framework through L utmost point breaker unit and the N utmost point residual current protective unit assembly unit hole is arranged, snap close, the handle of L utmost point breaker unit and N utmost point residual current protective unit can insert pivot pin, realize interlock with the assembly unit annex.
L utmost point breaker unit is separable to be gone out, when the 1P circuit breaker uses.
The thickness of said L utmost point breaker unit framework and N utmost point residual current protective unit framework is 9mm, and volume is little.
Said L utmost point breaker unit comprises L utmost point framework, operating mechanism, conducting system, short circuit protection system, overload protective device and arc-extinguish chamber; Said operating mechanism comprises handle, handle and connecting rod, tripping, snap close, lever, indication piece and back-moving spring; Handle is connected with an end of handle and connecting rod, and the other end of handle and connecting rod links to each other with tripping, with latching on the lever that tripping is locked mutually; Moving contact is housed on the lever, and the other end and the back-moving spring of lever join.
Said N utmost point residual current protective unit comprises N utmost point framework, operating mechanism, conducting system, electrical leakage tripping device, test reset button, electric leakage lock, test circuit, electronic circuit board, leakage tripping device, magnet ring and arc-extinguish chamber; Said operating mechanism comprises handle, handle and connecting rod, tripping, snap close, lever and back-moving spring; Handle is connected with an end of handle and connecting rod; The other end of handle and connecting rod links to each other with tripping; With latching on the lever that tripping is locked mutually, moving contact is housed on the lever, the other end and the back-moving spring of lever join.
Described conducting system comprises moving contact, moving contact spring and fixed contact, and moving contact is installed on the lever.
Described overload system comprises the dropout pull bar, bimetal leaf, striking sheet and spacer.
Described short circuit system comprises push rod, yoke, coil, moving iron core, static iron core, iron core spring and coil rack.
Described test reset button is locked this RCCB of formation with electric leakage and is had electric leakage indication and the function of leaking electricity and resetting.
Superior effect of the present invention is:
1) volume of the present invention is little, and the L utmost point and the N utmost point adopt independent framework, and dual operation machine is flexibly unique, and breaking capacity is high;
2) long service life, stability is higher with reliability;
3) structure is unique, and the L utmost point is isolated and can be worked as the use of 1P circuit breaker;
4) the present invention has electric leakage indication and electric leakage reset function, is combined into one the test button and the instruction button that resets, and simple in structure, it is little to take up room, and band electric leakage lock function makes product more safe and reliable;
5) but the L utmost point of the present invention or N utmost point assembly unit annex are formed multifunctional electric leakage circuit breaker.
Description of drawings:
Fig. 1 is a RCCB perspective view of the present invention;
Fig. 2 separates the L utmost point and N electrode structure sketch map for RCCB of the present invention;
Fig. 3 is a RCCB front view of the present invention;
Fig. 4 is a RCCB rearview of the present invention;
Fig. 5 removes to cover sketch map for the RCCB L utmost point of the present invention;
Fig. 6 removes to cover sketch map for the RCCB N utmost point of the present invention;
Fig. 7 is a RCCB dual operation machine schematic perspective view of the present invention;
Label declaration among the figure:
1-L utmost point breaker unit; 1a-L utmost point assembly unit hole;
2-N utmost point residual current protective unit; 2a-N utmost point assembly unit hole;
3-handle A; 3a-handle A pin hole;
4-handle pivot pin; 5-snap close pivot pin;
6-handle B; 6a-handle B pin hole;
7-handle and connecting rod A; 8-tripping A;
9-snap close A; 9a-snap close A pin hole;
The 10-indication piece; 11-lever A;
12-back-moving spring A; 13-moving contact A;
14-dropout pull bar; The 15-bimetal leaf;
The 16-brace; The 17-spacer;
The 18-push rod; 19-L utmost point fixed contact;
The 20-yoke; 21-short circuit tripping coil;
22-arc-extinguish chamber A; The 23-coil housing;
24-moves iron core; 25-handle and connecting rod B;
26-test reset button; 27-tripping B;
28-snap close B; 28a-snap close B pin hole;
29-lever B; 30-back-moving spring B;
31-moving contact B; The 32-electronic circuit board;
33-arc-extinguish chamber B; The 34-magnet ring;
35-N utmost point fixed contact B; The 36-leakage tripping device;
The 37-push rod that leaks electricity; The 38-lock that leaks electricity.
Embodiment
See also shown in the accompanying drawing, the present invention is done further description.
Like Fig. 1-shown in Figure 7; The invention provides the extra small 1P+N RCCB of a kind of two-shipper structure; Comprise L utmost point breaker unit 1, N utmost point residual current protective unit 2, said L utmost point breaker unit 1 is respectively independent device with N utmost point residual current protective unit 2, has identical independent operating mechanism; The handle B6 of the handle A3 of L utmost point breaker unit 1 and N utmost point residual current protective unit 2 threads off to break off through snap close and pivot pin interlock and realizes that the L utmost point and the N utmost point break off protection simultaneously through pivot pin 4 interlocks.
L utmost point handle A3 and N utmost point handle B6 are through 4 interlocks of handle pivot pin, and L utmost point snap close A9 and N utmost point snap close B28 are through pivot pin 5 interlocks, and L utmost point breaker unit is identical with the operating mechanism of N utmost point residual current protective unit, and both move simultaneously.
Described overload, short circuit, earth leakage protective all are that contact breaks off protection, act on the snap close through active force, and snap close is separated with tripping, reach dynamic and static contact and separate disconnection.L utmost point snap close and N utmost point snap close be through pivot pin interlock, reaches the L utmost point and the N utmost point and move disconnection simultaneously simultaneously.
Said L utmost point breaker unit 1 is provided with assembly unit hole 1a, 2a with the framework of N utmost point residual current protective unit 2, realizes multistage linking.On the framework through L utmost point breaker unit and the N utmost point residual current protective unit assembly unit hole is arranged, snap close, the handle of L utmost point breaker unit and N utmost point residual current protective unit can insert pivot pin, realize interlock with the assembly unit annex.
L utmost point breaker unit 1 is separable to be gone out, when the 1P circuit breaker uses.
The thickness of said L utmost point breaker unit 1 framework and N utmost point residual current protective unit 2 frameworks is 9mm, and volume is little.
Said L utmost point breaker unit 1 comprises L utmost point framework, operating mechanism, conducting system, short circuit protection system, overload protective device and arc-extinguish chamber A22; Said operating mechanism comprises handle A3, handle and connecting rod A7, tripping A8, snap close A9, lever A11, indication piece 10 and back-moving spring A12; Handle A3 is connected with the end of handle and connecting rod A7; The other end of handle and connecting rod A7 links to each other with tripping A8; The snap close A9 that locks mutually with tripping A8 is equipped with moving contact A13 on the lever A11 on lever A11, the other end of lever A11 and back-moving spring A12 join.
Said N utmost point residual current protective unit 2 comprises N utmost point framework, operating mechanism, conducting system, electrical leakage tripping device, test reset button 26, electric leakage lock 38, test circuit, electronic circuit board 32, leakage tripping device 36, magnet ring 34 and arc-extinguish chamber B33; Said operating mechanism comprises handle B6, handle and connecting rod B25, tripping B27, snap close B28, lever B29 and back-moving spring B30; Handle B6 is connected with the end of handle and connecting rod B25; The other end of handle and connecting rod B25 links to each other with tripping B27; The snap close B28 that locks mutually with tripping B27 is equipped with moving contact B31 on the lever B29 on lever B29, the other end of lever B29 and back-moving spring B30 join.
Described conducting system comprises moving contact, moving contact spring and fixed contact, and moving contact is installed on the lever.
Described overload system comprises dropout pull bar 14, bimetal leaf 15, striking sheet and spacer 17.
Described short circuit system comprises push rod 18, yoke 20, short circuit tripping coil 21, moving iron core 24, static iron core, iron core spring and coil rack.
Described test reset button 26 is locked 38 these RCCBs of formation with electric leakage and is had electric leakage indication and the function of leaking electricity and resetting.
The framework of said L utmost point breaker unit 1 has 2 assembly unit hole 1a, and the framework of N utmost point residual current protective unit 2 has 2 assembly unit hole 2a, and the snap close A9 of the L utmost point has bonnet lock hole 9a can insert pivot pin, and the snap close B28 of the N utmost point has bonnet lock hole 28a also can insert pivot pin; The handle A3 of the L utmost point has handle A pin hole 3a can insert pivot pin, and the handle B6 of the N utmost point has handle B pin hole 6a also can insert pivot pin.Under-voltage, separation can be through the L utmost point or N utmost point snap close and the interlock of snap close pivot pin; Contact is reported to the police, and auxiliary contact can be realized interlock through the L utmost point or N utmost point snap close, snap close pivot pin and handle, handle pivot pin, through assembly unit annex RCCB realization greater functionality.
The present invention integrates overload, short circuit and earth leakage protective, below specifies:
One, overload protection:
When in when operation energising, in the L polar circuit, have the electric current operation, when this electric current during greater than rated current; Bimetal leaf 15 heatings are bent to a certain degree can spur dropout pull bar 14, dropout pull bar 14 drives snap close A9 to be separated with tripping A8, and lever 11A loses equilibrium of forces; Quick rotation under back-moving spring A12 effect, thus L utmost point moving contact A13 is separated with L utmost point fixed contact A19, be inserted with snap close pivot pin 5 among the L utmost point snap close A9; It can link with the snap close B28 of the N utmost point, and the snap close B28 of the N utmost point also can separate with tripping B27, makes lever B29 lose equilibrium of forces; Quick rotation under back-moving spring B30 effect, thus N utmost point moving contact B31 is separated with N utmost point fixed contact B35.
Two, short-circuit protection:
When the extremely middle circuit of L was short-circuited, short circuit tripping coil 21 can produce a powerful magnetic field, the moving iron core 24 of pulling; Separate with tripping A8 thereby promote push rod 18 promotion moving lock button A9, lever A11 loses equilibrium of forces, quick rotation under back-moving spring A12 effect; Thereby L utmost point moving contact A13 is separated with L utmost point fixed contact A19, be inserted with snap close pivot pin 5 among the L utmost point snap close A9, it can link with the snap close B28 of the N utmost point; The snap close B28 of the N utmost point also can separate with tripping B27; Make lever B29 lose equilibrium of forces, quick rotation under back-moving spring B30 effect makes N utmost point moving contact B31 separate with N utmost point fixed contact B35 from face.
Three, earth leakage protective:
When the L utmost point or N utmost point generation electric leakage, leakage current flows through magnet ring 34, and magnet ring 34 can produce the signals of telecommunication and give electronic circuit board 32; Through electronic circuit board 32 processing and amplifying, output current is given leakage tripping device 36, and leakage tripping device 36 promotes electric leakage push rod 37; Electric leakage push rod 37 promotes electric leakage lock 38, and electric leakage lock 38 sways, and test reset button 26 rises; Rise to reset position, electric leakage lock 38 impacts snap close B28 to be separated with tripping B27, and lever B29 loses equilibrium of forces; Quick rotation under back-moving spring B30 effect, thus N utmost point moving contact B31 is separated with N utmost point fixed contact B35, be inserted with pivot pin 5 among the N utmost point snap close B28; It can link with the snap close A9 of the L utmost point, and the snap close A9 of the L utmost point also can separate with tripping A8, makes lever A11 lose equilibrium of forces; Quick rotation under back-moving spring A12 effect, thus L utmost point moving contact A13 is separated with L utmost point fixed contact A19.
Four, analog leakance test:
Promptly be in energising when the RCCB handle is in closure state, when pressing test reset button 26 (being equivalent to the simulation electric leakage), test reset button 26 moves downward; Test reset button 26 is connected test circuit, and the simulation leakage current flows through test circuit (draw at the circuit end), and electric leakage signal is after electronic circuit board 32 processing and amplifying; Have electric current to be defeated by leakage tripping device 36, leakage tripping device 36 actions promote electric leakage push rod 37 and act on electric leakage lock 38, and electric leakage lock 38 just sways; Electric leakage lock 38 impact snap close B28, snap close B28 is separated with tripping B27, lever B29 loses equilibrium of forces; Quick rotation under back-moving spring B30 effect, thus N utmost point moving contact B31 is separated with N utmost point fixed contact B35, thus reach the earth leakage protective effect; Electric leakage lock 38 is when swaying, and electric leakage lock 38 leaves with test reset button 26 snap portions, and test reset button 26 is under spring action; Move upward, be equivalent to have the indication of electric leakage state.When test reset button 26 was in the electric leakage indicating status, the handle that closes can not be closed.Only after leak current fault is removed, press test reset button 26, after making test reset button 26 and electric leakage lock 38 engaging, switch could close a floodgate and drop into line electrical leakage once more and detect and safeguard protection work.
Above-mentioned is an embodiment of the present invention, and design concept of the present invention is not limited thereto, and allly utilizes this design that the present invention is carried out substantial change, all belongs to the behavior of invading protection range of the present invention.
Claims (6)
1. extra small 1P+N RCCB of two-shipper structure; Comprise L utmost point breaker unit, N utmost point residual current protective unit; It is characterized in that: said L utmost point breaker unit and N utmost point residual current protective unit are respectively independent device; Have identical independent operating mechanism, the handle of the handle of L utmost point breaker unit and N utmost point residual current protective unit is threaded off to break off through snap close and pivot pin interlock and is realized that the L utmost point and the N utmost point break off protection simultaneously through the pivot pin interlock.
2. the extra small 1P+N RCCB of two-shipper structure according to claim 1 is characterized in that: the framework of said L utmost point breaker unit and N utmost point residual current protective unit is provided with the assembly unit hole, realizes multistage linking.
3. the extra small 1P+N RCCB of two-shipper structure according to claim 1 is characterized in that: the thickness of said L utmost point breaker unit framework and N utmost point residual current protective unit framework is 9mm.
4. the extra small 1P+N RCCB of two-shipper structure according to claim 1; It is characterized in that: said L utmost point breaker unit comprises L utmost point framework, operating mechanism, conducting system, short circuit protection system, overload protective device and arc-extinguish chamber; Said operating mechanism comprises handle, handle and connecting rod, tripping, snap close, lever, indication piece and back-moving spring; Handle is connected with an end of handle and connecting rod, and the other end of handle and connecting rod links to each other with tripping, with latching on the lever that tripping is locked mutually; Moving contact is housed on the lever, and the other end and the back-moving spring of lever join.
5. the extra small 1P+N RCCB of two-shipper structure according to claim 1 is characterized in that: said N utmost point residual current protective unit comprises N utmost point framework, operating mechanism, conducting system, electrical leakage tripping device, test reset button, electric leakage lock, test circuit, electronic circuit board, leakage tripping device, magnet ring and arc-extinguish chamber; Said operating mechanism comprises handle, handle and connecting rod, tripping, snap close, lever and back-moving spring; Handle is connected with an end of handle and connecting rod; The other end of handle and connecting rod links to each other with tripping; With latching on the lever that tripping is locked mutually, moving contact is housed on the lever, the other end and the back-moving spring of lever join.
6. according to claim 4 and the extra small 1P+N RCCB of 5 described two-shipper structures, it is characterized in that: described conducting system comprises moving contact, moving contact spring and fixed contact, and moving contact is installed on the lever.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101969687A CN102709131A (en) | 2012-06-15 | 2012-06-15 | Double-mechanism super-small 1P plus N electric leakage circuit breaker |
| PCT/CN2012/082164 WO2013185421A1 (en) | 2012-06-15 | 2012-09-27 | Dual-mechanism 1p+n earth leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101969687A CN102709131A (en) | 2012-06-15 | 2012-06-15 | Double-mechanism super-small 1P plus N electric leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102709131A true CN102709131A (en) | 2012-10-03 |
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ID=46901810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101969687A Pending CN102709131A (en) | 2012-06-15 | 2012-06-15 | Double-mechanism super-small 1P plus N electric leakage circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102709131A (en) |
| WO (1) | WO2013185421A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489724A (en) * | 2013-09-16 | 2014-01-01 | 乐清市胜宇电气有限公司 | Residual-current circuit breaker |
| CN106601560A (en) * | 2017-03-01 | 2017-04-26 | 厦门宏发开关设备有限公司 | Breaker accessory-assembling apparatus |
| CN107656137A (en) * | 2017-08-08 | 2018-02-02 | 中国电力科学研究院 | A kind of intelligent electric meter payment control system and its control method |
| CN108447747A (en) * | 2018-05-16 | 2018-08-24 | 首瑞（天津）电气设备有限公司 | A kind of small size breaker |
| CN108511288A (en) * | 2018-03-07 | 2018-09-07 | 广东南冠电气有限公司 | A kind of compact electromagnetic dropout type leakage circuit breakers |
| CN108899259A (en) * | 2018-05-28 | 2018-11-27 | 上海诺雅克电气有限公司 | Earth leakage circuit breaker |
| CN109003868A (en) * | 2018-09-17 | 2018-12-14 | 美高电气科技有限公司 | A kind of auxiliary alarm contact head |
| CN111341609A (en) * | 2020-04-02 | 2020-06-26 | 苏州未来电器股份有限公司 | Electric operating device |
| CN111916316A (en) * | 2020-09-01 | 2020-11-10 | 美高电气科技有限公司 | Bipolar circuit breaker with display function |
| CN114429887A (en) * | 2020-10-29 | 2022-05-03 | 浙江正泰电器股份有限公司 | Earth leakage circuit breaker device |
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| CN202259078U (en) * | 2011-09-07 | 2012-05-30 | 浙江加西亚电子电器有限公司 | Small electricity leakage circuit breaker with width of 18mm |
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- 2012-06-15 CN CN2012101969687A patent/CN102709131A/en active Pending
- 2012-09-27 WO PCT/CN2012/082164 patent/WO2013185421A1/en active Application Filing
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| CN2496127Y (en) * | 2001-09-28 | 2002-06-19 | 浙江森泰电器厂 | Easy assembly analog and digital small-sized circuit breaker |
| CN201069746Y (en) * | 2007-08-22 | 2008-06-04 | 浙江省志明电气进出口有限公司 | Electronic current leakage breaker |
| CN201084660Y (en) * | 2007-09-12 | 2008-07-09 | 温州市新蓝天电器有限公司 | A leakage breaker linkage device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489724A (en) * | 2013-09-16 | 2014-01-01 | 乐清市胜宇电气有限公司 | Residual-current circuit breaker |
| CN106601560A (en) * | 2017-03-01 | 2017-04-26 | 厦门宏发开关设备有限公司 | Breaker accessory-assembling apparatus |
| CN106601560B (en) * | 2017-03-01 | 2018-06-08 | 厦门宏发开关设备有限公司 | A kind of breaker assembly accessories apparatus |
| CN107656137A (en) * | 2017-08-08 | 2018-02-02 | 中国电力科学研究院 | A kind of intelligent electric meter payment control system and its control method |
| CN108511288B (en) * | 2018-03-07 | 2023-09-05 | 广东南冠电气有限公司 | Small electromagnetic trip type leakage circuit breaker |
| CN108511288A (en) * | 2018-03-07 | 2018-09-07 | 广东南冠电气有限公司 | A kind of compact electromagnetic dropout type leakage circuit breakers |
| CN108447747A (en) * | 2018-05-16 | 2018-08-24 | 首瑞（天津）电气设备有限公司 | A kind of small size breaker |
| CN108899259A (en) * | 2018-05-28 | 2018-11-27 | 上海诺雅克电气有限公司 | Earth leakage circuit breaker |
| CN108899259B (en) * | 2018-05-28 | 2025-04-01 | 上海诺雅克电气有限公司 | Leakage protection circuit breaker |
| CN109003868A (en) * | 2018-09-17 | 2018-12-14 | 美高电气科技有限公司 | A kind of auxiliary alarm contact head |
| CN111341609A (en) * | 2020-04-02 | 2020-06-26 | 苏州未来电器股份有限公司 | Electric operating device |
| CN111916316A (en) * | 2020-09-01 | 2020-11-10 | 美高电气科技有限公司 | Bipolar circuit breaker with display function |
| CN111916316B (en) * | 2020-09-01 | 2023-02-17 | 美高电气科技有限公司 | Bipolar circuit breaker with display function |
| CN114429887A (en) * | 2020-10-29 | 2022-05-03 | 浙江正泰电器股份有限公司 | Earth leakage circuit breaker device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013185421A1 (en) | 2013-12-19 |
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Application publication date: 20121003 |