CN110010418A - It is a kind of to have the characteristics that the breaker of plastic casing of frame circuit breaker - Google Patents

It is a kind of to have the characteristics that the breaker of plastic casing of frame circuit breaker Download PDF

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Publication number
CN110010418A
CN110010418A CN201910256061.7A CN201910256061A CN110010418A CN 110010418 A CN110010418 A CN 110010418A CN 201910256061 A CN201910256061 A CN 201910256061A CN 110010418 A CN110010418 A CN 110010418A
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CN
China
Prior art keywords
plug
circuit breaker
breaker
erecting bed
type
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.)
Granted
Application number
CN201910256061.7A
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Chinese (zh)
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CN110010418B (en
Inventor
郭建
杨青
陈铭杰
秦钢华
李贤凯
赵盼庆
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CHANGSHU RUITE ELECTRIC Co Ltd
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CHANGSHU RUITE ELECTRIC Co Ltd
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Publication date
Application filed by CHANGSHU RUITE ELECTRIC Co Ltd filed Critical CHANGSHU RUITE ELECTRIC Co Ltd
Priority to CN201910256061.7A priority Critical patent/CN110010418B/en
Publication of CN110010418A publication Critical patent/CN110010418A/en
Application granted granted Critical
Publication of CN110010418B publication Critical patent/CN110010418B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08Terminals; Connections

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  • Breakers (AREA)

Abstract

The present invention provide it is a kind of have the characteristics that the breaker of plastic casing of frame circuit breaker, which has breaker of plastic casing advantage small in size, light-weight, compact-sized, while also having the advantage that frame circuit breaker short circuit breaking capacity is high, KA Rms is high.The breaker is by being optimized frame-type circuit breaker, remove metal shell or drawer chassis, using plastic shell, and use suspension type mounting means, it is installed using fixedly mounted or plug-in type by plug-in type erecting bed, generally use the mode of connection before plate when fixedly mounted, the mode of connection after wiring or plate can be used before plate in plug-in type when installing.Therefore the breaker is the feature for having breaker of plastic casing;Simultaneously because the ontology of the breaker is frame circuit breaker, therefore has the advantage that frame circuit breaker short circuit breaking capacity is high, KA Rms is high.

Description

It is a kind of to have the characteristics that the breaker of plastic casing of frame circuit breaker
Technical field
The present invention relates to a kind of breakers, and in particular to a kind of large capacity breaker of plastic casing is applicable to AC and DC In electric system.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined Interior carrying and the switching device for cut-offfing the fault current under abnormal loop condition.Breaker is generally by contact system, arc extinguishing system System, operating mechanism, buckle releaser and plastic shell etc. are constituted, and can be divided into frame-type circuit breaker by structure point and (also be made universal disconnected Road device) and mold cased circuit breaker.
Frame-type circuit breaker is divided into fixed and drawer type by the installation mode of connection, for stationary frame breaker, breaks Road device ontology (including plastic shell, contact system, arc quenching system, operating mechanism and buckle releaser etc.) is fixed on metallic support, It is fixed on when use on horizontal mounting plate (or being horizontally mounted frame), overall dimensions are smaller than open frame circuit breaker;Drawer type frame Breaker body 1 is mounted in drawer chassis 2 by breaker, as shown in Figure 1, can by shake into mechanism by breaker body 1 shake into Or drawer chassis 2 is shaken out, convenient for the maintenance and test of breaker, but open frame circuit breaker volume is big, weight weight, and large capacity is taken out The weight of drawer formula breaker, drawer chassis 2 is even suitable with the weight of breaker body 1.Therefore, although frame-type circuit breaker has Have the advantages that short circuit breaking capacity is high, KA Rms is high, but its overall dimensions is big, weight weight.
Breaker of plastic casing uses plastic insulation as the shell of breaker, contact, arc-chutes, buckle releaser and operating system etc. It is fitted into plastic shell, it is easy to accomplish phase insulation and be isolated with electric conductor.Breaker of plastic casing has compact-sized, volume It is small, it is light-weight the features such as, but its bear short circuit current ability is low, intelligence degree is lower than frame-type circuit breaker, be often used for Rated current is in 630A low capacity circuit below.
Summary of the invention
In view of this, the present invention provide it is a kind of have the characteristics that the breaker of plastic casing of frame circuit breaker, which has modeling Case circuit breaker advantage small in size, light-weight, compact-sized, while it is high, in short-term also to have frame circuit breaker short circuit breaking capacity It is resistant to the high advantage of electric current.
The present invention provide a kind of breaker of plastic casing with frame-type circuit breaker include: fixed breaker ontology, Line bank and insulation back shroud before fixed plate;
The structure of the fixed breaker ontology is identical as frame-type circuit breaker body construction, comprising: plastic shell is set The contact system and arc quenching system inside plastic shell are set, electronic type release, the operation of plastic shell front end face are set Mechanism and electronic energy storage mechanism;
Line bank before fixed plate is set on the rear end face of the plastic shell, and line bank is defeated before the fixed plate Enter end and output end to draw to the upper and lower part of the plastic shell respectively;
The installation insulation back shroud on the rear end face of the plastic shell.
The breaker of plastic casing is installed using suspension type, and the insulation back shroud is as suspension installation part.
In addition, the present invention, which provides another kind, has the characteristics that the breaker of plastic casing of frame circuit breaker, comprising: plug in circuit breaker Ontology, insulation back shroud and plug-in type erecting bed;
The structure of the plug in circuit breaker ontology is identical as frame-type circuit breaker body construction, comprising: plastic shell is set Set contact system and arc quenching system inside plastic shell, electronic type release that plastic shell front end face is set, operation Handle and electronic energy storage mechanism;
The installation insulation back shroud on the rear end face of the plastic shell;
The leading-out terminal of the plug in circuit breaker ontology is the plane plug for stretching out the insulation back shroud;
Line bank is arranged in position corresponding with the plane plug on the plug-in type erecting bed;
The plug-in type erecting bed is docked with the rear end face of the plug in circuit breaker ontology, make the line bank with it is described The connection conducting of plane plug, and be detachably connected between the plug-in type erecting bed and the plug in circuit breaker ontology.
The plug-in type erecting bed is wiring erecting bed after sheet insertion mode, enables wiring erecting bed and institute after the sheet insertion mode The interface for stating plug in circuit breaker ontology is its front end face, the rear end face and plane of wiring erecting bed after the sheet insertion mode The corresponding position of plug is provided with line bank after sheet insertion mode, and the plane plug on the plug in circuit breaker ontology passes through insertion Line bank connection is led after the sheet insertion mode of wiring erecting bed rear end face after jack and sheet insertion mode after formula plate on wiring erecting bed It is logical.
The plug-in type erecting bed is wiring erecting bed before sheet insertion mode, enables wiring erecting bed and institute before the sheet insertion mode The interface for stating plug in circuit breaker ontology is its front end face, and the front end face setting of wiring erecting bed is inserted before the sheet insertion mode Enter line bank before formula plate, line bank input terminal and output end are installed to wiring before the sheet insertion mode respectively before the sheet insertion mode It draws the upper and lower part of platform;Plane plug on the plug in circuit breaker ontology is directly pacified with wiring before the sheet insertion mode Line bank connection is connected before filling the sheet insertion mode of platform front end face.
The utility model has the advantages that
1600A frame-type circuit breaker is optimized in the breaker, removes metallic support and drawer chassis, and using suspension Formula mounting means devises and installs two kinds of mounting means using fixedly mounted and plug-in type by plug-in type erecting bed, Gu Fixed pattern generally uses the mode of connection before plate when installing, and the mode of connection after wiring or plate can be used before plate in plug-in type when installing.Therefore The present invention has the feature of breaker of plastic casing;Simultaneously because the ontology of the breaker is frame circuit breaker, using frame open circuit The electronic type release of device carries electronic energy storage mechanism, operating mechanism, contact system and arc extinguishing system with frame circuit breaker System, therefore have the advantage that frame circuit breaker short circuit breaking capacity is high, KA Rms is high.And the breaker of the structure Have preferable maintainability, but reduce volume than frame circuit breaker and alleviates weight.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of conventional frame formula breaker body and drawer chassis;
Fig. 2 is the breaker of plastic casing structural schematic diagram of wiring before fixedly mounted plate in embodiment 1;
Fig. 3 is the breaker of plastic casing structural schematic diagram of wiring after plug-in type mounting plate in embodiment 2;
Fig. 4 is the breaker of plastic casing structural schematic diagram of wiring before plug-in type mounting plate in embodiment 3;
Fig. 5 is the plug-in type erecting bed contrast schematic diagram in the drawer chassis and embodiment 2 of conventional frame formula breaker.
Wherein: 1- frame circuit breaker ontology, 2- drawer chassis, 3- plastic shell, 4- electronic trip unit, 5- operation handle, 6- Wiring erecting bed, 10- after line bank, 8- plug in circuit breaker ontology, 9- sheet insertion mode before the fixed plate of electronic energy storage mechanism, 7- Line bank before wiring erecting bed, 12- sheet insertion mode before line bank, 11- sheet insertion mode after sheet insertion mode
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
Embodiment 1:
Has the characteristics that the breaker of plastic casing of frame circuit breaker the present embodiment provides a kind of, which is fixedly mounted plate The breaker of preceding wiring, the advantages of being integrated with breaker of plastic casing and frame circuit breaker, the breaker of plastic casing be suitable for 1600A with Under frame-type circuit breaker improvement.
The breaker has plastic shell, using the mode of connection before fixedly mounted and plate, as shown in Fig. 2, specifically including: Line bank 7 and insulation back shroud before fixed breaker ontology, fixed plate, fixed breaker ontology includes: plastic shell 3, contact system and arc quenching system inside plastic shell 3 are set, the electronic type release of 3 front end face of plastic shell is set 4, operating mechanism 5 and electronic energy storage mechanism 6, the above construction and arrangement are identical as the ontology of stationary frame breaker.In this example Line bank 7 is arranged in 3 back of plastic shell (rear end face) before the fixed plate of breaker, and input terminal and output end are respectively to top It is drawn with lower part, and covers insulation back shroud at fixed breaker ontology back, installation of the back shroud as breaker of insulating Face.When the fixed breaker is installed, the back shroud that will directly insulate is installed by the component that bolt suspension is mounted on power distribution cabinet On plate.
The difference of the breaker and former frame-type circuit breaker is:
(1) metallic support of former frame-type circuit breaker two sides is changed to the insulation rear cover at fixed breaker ontology back Plate;Mounting means becomes in-wall mounting from fixed on table;
(2) outlet is (fixedly mounted before the rear outlet of former frame-type circuit breaker drawer chassis being changed to fixedly mounted plate The mode of connection before plate).
Embodiment 2:
On the basis of above-described embodiment 1, for convenience of the maintenance and replacement of breaker, a kind of plug-in installation is provided Breaker.There are two types of the modes of connection for plug in circuit breaker: the mode of connection (as shown in Figure 4) and plug-in type before plug-in type mounting plate The mode of connection (as shown in Figure 3) after mounting plate.It is the mode of connection after plug-in type mounting plate in the present embodiment, thus configures plug-in type Wiring erecting bed 9 after plate.After the breaker of plastic casing in the present embodiment includes: plug in circuit breaker ontology 8 and sheet insertion mode as a result, Wiring erecting bed 9.
The structure of wiring breaker is as shown in figure 3, the front of wiring erecting bed 9 and insertion after sheet insertion mode after sheet insertion mode The docking of 8 back of formula breaker body, wiring erecting bed 9 is provided with pin shaft on the interface after sheet insertion mode, by by pin shaft It is inserted into the pin hole on plug in circuit breaker ontology, wiring erecting bed 9 after making plug in circuit breaker ontology 8 be mounted on sheet insertion mode On;Then pass through wiring erecting bed 9 after fixing screws connection breaker body 8 and sheet insertion mode.
The overall structure of plug in circuit breaker ontology 8 is close with the structure of fixed breaker ontology in embodiment 1, specifically Include: plastic shell 3, the contact system and arc quenching system that are arranged in inside plastic shell 3, is arranged in 3 front end face of plastic shell Electronic type release 4, operating mechanism 5 and electronic energy storage mechanism 6, the back of plug in circuit breaker ontology 8 is breaker outgoing line End, leading-out terminal are designed as the plane plug of back protrusion;8 back of plug in circuit breaker ontology covers insulation back shroud, as slotting Enter the backboard of formula breaker body 8, above-mentioned plane plug stretches out insulation back shroud.
The line bank after the position setting sheet insertion mode corresponding with plane plug of 9 back side of wiring erecting bed after sheet insertion mode 10, the plane plug on plastic shell 3 is installed by wiring after the jack and sheet insertion mode on wiring erecting bed 9 after sheet insertion mode Line bank 10 cooperates after the sheet insertion mode at 9 back side of platform, and conducting is bolted.
The installation Wiring step of plug in circuit breaker is as follows:
(1) first wiring erecting bed 9 after sheet insertion mode is mounted on the component mounting plate of panel, completes plug-in type peace Fill the installation of platform;
(2) by line bank 10 and main circuit connection after the sheet insertion mode after sheet insertion mode on wiring erecting bed 9;
(3) plug in circuit breaker ontology 8 is docked with wiring erecting bed 9 after sheet insertion mode, pacifies wiring after sheet insertion mode It fills in the pin hole on the pin shaft insertion plug in circuit breaker ontology 8 on platform 9;And tighten plug in circuit breaker ontology 8 and plug-in type Fixing screws after plate between wiring erecting bed 9;
(4) the connection spiral shell between the plane plug of plug in circuit breaker ontology 8 and plug-in type erecting bed line bank 10 is tightened Mother completes the connection of breaker main circuit.
When needing replacing plug in circuit breaker ontology 8, without disassembly line bank, or even it is not required to cut off level power supply, just It can directly replace, the specific steps are as follows:
(1) breaker needed to change is disconnected, cuts off load power source;
(2) unscrew the connection spiral shell between the plane plug of plug in circuit breaker ontology 8 and plug-in type erecting bed line bank 10 It is female;
(3) unscrew the fixing screws after plug in circuit breaker ontology 8 and sheet insertion mode between wiring erecting bed 9;
(4) plug in circuit breaker ontology 8 is removed on wiring erecting bed 9 after sheet insertion mode, then by the new insertion of replacement Formula breaker body 8 is docked with wiring erecting bed 9 after sheet insertion mode;
(5) successively tighten fixing screws after plug in circuit breaker ontology 8 and sheet insertion mode between wiring erecting bed 9, according to Attaching nut after the secondary plane plug for tightening plug in circuit breaker ontology 8 and sheet insertion mode between line bank 10;
(6) by breaker closing, that is, the replacement of plug in circuit breaker ontology is completed.
Embodiment 3:
Difference with above-described embodiment 2 is that plug in circuit breaker is using wiring before plug-in type mounting plate in the present embodiment Mode, i.e. breaker of plastic casing in the present embodiment include: wiring erecting bed 11 before plug in circuit breaker ontology 8 and sheet insertion mode.
The structure of plug in circuit breaker ontology 8 is identical as plug in circuit breaker body construction in above-described embodiment 2, and difference is only It is plug-in type erecting bed, as shown in figure 4, plug-in type erecting bed is wiring erecting bed 11 before sheet insertion mode, line bank in this example The upper and lower ends of 11 front end face of wiring erecting bed before sheet insertion mode are set, line bank 12 before sheet insertion mode is formed.Plastic shell 3 Back be plug in circuit breaker ontology 8 leading-out terminal, leading-out terminal be designed as back protrusion plane plug, plug in circuit breaker 8 back of ontology covers insulation back shroud, and as the backboard of plug in circuit breaker ontology 8, above-mentioned plane plug stretches out insulation rear cover Plate.
Line bank before the sheet insertion mode of 11 front end face of wiring erecting bed before plane plug and sheet insertion mode on plastic shell 3 12 cooperations, and connected and be connected by attaching nut.
Volume is used by frame-type circuit breaker drawer chassis 2 big, weight weight by volume in above-described embodiment 2 and embodiment 3 Small, light-weight plug-in type erecting bed (wiring erecting bed 11 before wiring erecting bed 9 or sheet insertion mode after sheet insertion mode) replaces, Fig. 5 is shown in shape comparison, and can be by wiring erecting bed 11 before wiring erecting bed 9 after sheet insertion mode or sheet insertion mode as suspension installation Face carries out suspension type installation to the breaker.The volume of the plug in circuit breaker of this kind of structure type is reduced to open frame circuit breaker 64%, weight is reduced to the 51% of open frame circuit breaker.
Breaker using 3 structure of above-described embodiment 1- embodiment can be used for AC circuit breaker, it can also be used to which direct current is disconnected Road device.
The plug-in type plastic housing open circuit that the fixed breaker of plastic casing and embodiment 2 and embodiment 3 that above-mentioned implementation 1 provides provide The weight and volume of device is as shown in the table with former stationary frame breaker and drawer type frame breaker comparison respectively:
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (7)

1. a kind of have the characteristics that the breaker of plastic casing of frame circuit breaker characterized by comprising fixed breaker ontology is consolidated Line bank (7) and insulation back shroud before fixed pattern plate;
The structure of the fixed breaker ontology is identical as frame-type circuit breaker body construction, comprising: plastic shell (3) is set The contact system and arc quenching system internal in plastic shell (3) are set, the electronic type release in plastic shell (3) front end face is set (4), operating mechanism (5) and electronic energy storage mechanism (6);
Line bank (7) before fixed plate, line bank before the fixed plate are set on the rear end face of the plastic shell (3) (7) input terminal and output end is drawn to the upper and lower part of the plastic shell (3) respectively;
The installation insulation back shroud on the rear end face of the plastic shell (3).
2. having the characteristics that the breaker of plastic casing of frame circuit breaker as described in claim 1, which is characterized in that the plastic housing open circuit Device is installed using suspension type, and the insulation back shroud is as suspension installation part.
3. a kind of have the characteristics that the breaker of plastic casing of frame circuit breaker characterized by comprising plug in circuit breaker ontology (8), Insulate back shroud and plug-in type erecting bed;
The structure of the plug in circuit breaker ontology (8) is identical as frame-type circuit breaker body construction, comprising: plastic shell (3), It is arranged and threads off in the internal contact system of plastic shell (3) and arc quenching system, setting in the electronic type of plastic shell (3) front end face Device (4), operation handle (5) and electronic energy storage mechanism (6);
The installation insulation back shroud on the rear end face of the plastic shell (3);
The leading-out terminal of the plug in circuit breaker ontology (8) is the plane plug for stretching out the insulation back shroud;
Line bank is arranged in position corresponding with the plane plug on the plug-in type erecting bed;
The plug-in type erecting bed is docked with the rear end face of the plug in circuit breaker ontology (8), make the line bank with it is described The connection conducting of plane plug, and be detachably connected between the plug-in type erecting bed and the plug in circuit breaker ontology (8).
4. having the characteristics that the breaker of plastic casing of frame circuit breaker as claimed in claim 3, which is characterized in that the plug-in type peace Filling platform is wiring erecting bed (9) after sheet insertion mode, enables wiring erecting bed (9) and the plug in circuit breaker after the sheet insertion mode The interface of ontology (8) is its front end face, and the rear end face of wiring erecting bed (9) is corresponding with plane plug after the sheet insertion mode Position be provided with line bank (10) after sheet insertion mode, the plane plug on the plug in circuit breaker ontology (8) passes through insertion Line bank after the sheet insertion mode of wiring erecting bed (9) rear end face after jack and sheet insertion mode after formula plate on wiring erecting bed (9) (10) connection conducting.
5. having the characteristics that the breaker of plastic casing of frame circuit breaker as claimed in claim 3, which is characterized in that the plug-in type peace Filling platform is wiring erecting bed (11) before sheet insertion mode, enables wiring erecting bed (11) and plug-in type open circuit before the sheet insertion mode The interface of device ontology (8) is its front end face, and plug-in type is arranged in the front end face of wiring erecting bed (11) before the sheet insertion mode Line bank (12) before plate, line bank (12) input terminal and output end are respectively to wiring before the sheet insertion mode before the sheet insertion mode It draws the upper and lower part of erecting bed (11);Plane plug on the plug in circuit breaker ontology (8) directly with the insertion Line bank (12) connection conducting before the sheet insertion mode of wiring erecting bed (11) front end face before formula plate.
6. having the characteristics that the breaker of plastic casing of frame circuit breaker as described in claim 3 or 4 or 5, which is characterized in that described to insert Enter detachable connection method between formula erecting bed and the plug in circuit breaker ontology (8) are as follows: the plug-in type erecting bed with It is provided with pin shaft on the interface of plug in circuit breaker ontology (8), by the way that pin shaft is inserted into the plug in circuit breaker ontology (8) On pin hole in, dock the plug in circuit breaker ontology (8) with plug-in type erecting bed;Then by described in fastener connection Plug in circuit breaker ontology (8) and plug-in type erecting bed.
7. having the characteristics that the breaker of plastic casing of frame circuit breaker as described in claim 3 or 4 or 5, which is characterized in that the modeling Case circuit breaker is installed using suspension type, and the plug-in type erecting bed is as suspension installation part.
CN201910256061.7A 2019-04-01 2019-04-01 Plastic case circuit breaker with frame circuit breaker characteristics Active CN110010418B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910256061.7A CN110010418B (en) 2019-04-01 2019-04-01 Plastic case circuit breaker with frame circuit breaker characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910256061.7A CN110010418B (en) 2019-04-01 2019-04-01 Plastic case circuit breaker with frame circuit breaker characteristics

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CN110010418A true CN110010418A (en) 2019-07-12
CN110010418B CN110010418B (en) 2024-04-26

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010025773A1 (en) * 2000-03-17 2001-10-04 Rane Mahesh Jaywant Draw out arrangement for molded case circuit breakers
CN201364859Y (en) * 2009-02-06 2009-12-16 李建民 Novel connection terminal of breaker
JP2010061830A (en) * 2008-09-01 2010-03-18 Fuji Electric Fa Components & Systems Co Ltd Electric operating device of circuit breaker
CN201689835U (en) * 2010-03-18 2010-12-29 杭州日安电器有限公司 Plastic outer casing type circuit breaker
CN202111016U (en) * 2011-06-14 2012-01-11 常熟开关制造有限公司(原常熟开关厂) Rear plate wiring device of breaker
CN202905629U (en) * 2012-09-22 2013-04-24 天津中电华利电器科技集团有限公司 Board-back wiring molded case circuit breaker
KR20140056810A (en) * 2012-10-31 2014-05-12 현대중공업 주식회사 Mccb combination with structure of the lug
CN104008929A (en) * 2014-04-29 2014-08-27 常熟瑞特电气股份有限公司 Surface contact plug-in type circuit breaker
KR20140111878A (en) * 2013-03-12 2014-09-22 엘에스산전 주식회사 A cradle for a withdrawable circuit breaker
CN105070605A (en) * 2015-07-21 2015-11-18 安徽灿邦电气有限公司 Plug-in back-panel wiring device for moulded case circuit breaker
CN107342198A (en) * 2017-08-23 2017-11-10 河北宝凯电气股份有限公司 A kind of breaker of plastic casing with powerful disjunction short circuit current ability
CN207381343U (en) * 2017-10-12 2018-05-18 江西斯德尔电气有限公司 A kind of novel plastic shell formula breaker

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010025773A1 (en) * 2000-03-17 2001-10-04 Rane Mahesh Jaywant Draw out arrangement for molded case circuit breakers
JP2010061830A (en) * 2008-09-01 2010-03-18 Fuji Electric Fa Components & Systems Co Ltd Electric operating device of circuit breaker
CN201364859Y (en) * 2009-02-06 2009-12-16 李建民 Novel connection terminal of breaker
CN201689835U (en) * 2010-03-18 2010-12-29 杭州日安电器有限公司 Plastic outer casing type circuit breaker
CN202111016U (en) * 2011-06-14 2012-01-11 常熟开关制造有限公司(原常熟开关厂) Rear plate wiring device of breaker
CN202905629U (en) * 2012-09-22 2013-04-24 天津中电华利电器科技集团有限公司 Board-back wiring molded case circuit breaker
KR20140056810A (en) * 2012-10-31 2014-05-12 현대중공업 주식회사 Mccb combination with structure of the lug
KR20140111878A (en) * 2013-03-12 2014-09-22 엘에스산전 주식회사 A cradle for a withdrawable circuit breaker
CN104008929A (en) * 2014-04-29 2014-08-27 常熟瑞特电气股份有限公司 Surface contact plug-in type circuit breaker
CN105070605A (en) * 2015-07-21 2015-11-18 安徽灿邦电气有限公司 Plug-in back-panel wiring device for moulded case circuit breaker
CN107342198A (en) * 2017-08-23 2017-11-10 河北宝凯电气股份有限公司 A kind of breaker of plastic casing with powerful disjunction short circuit current ability
CN207381343U (en) * 2017-10-12 2018-05-18 江西斯德尔电气有限公司 A kind of novel plastic shell formula breaker

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