CN202473781U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN202473781U CN202473781U CN2012200620123U CN201220062012U CN202473781U CN 202473781 U CN202473781 U CN 202473781U CN 2012200620123 U CN2012200620123 U CN 2012200620123U CN 201220062012 U CN201220062012 U CN 201220062012U CN 202473781 U CN202473781 U CN 202473781U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- miniature circuit
- inspection hole
- observation
- holes
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a miniature circuit breaker. The miniature circuit breaker comprises a shell and is characterized in that the shell is provided with holes for observation. The quantity of the holes for observation is four and the centers of the holes for observation are positioned on the same straight line. Through the holes for observation, a user can observe whether the circuit breaker is in a break state or a conduction state, so that whether the circuit breaker is in the break state or the conduction state can be more conveniently judged.
Description
Technical field
The utility model relates to a kind of miniature circuit breaker.
Background technology
At present, circuit breaker is widely used, and in industry, all can be used in the middle of building trade or the family.
Circuit breaker (speed sensitive switch) is divided into primary cut-out and low-voltage circuit breaker by its scope of application, and the high-low pressure identification of boundaries is fuzzyyer, and is general with the High-Voltage Electrical Appliances that are called more than the 3kV.Low-voltage circuit breaker is claimed automatic switch again, is commonly called as " air switch " and also is meant low-voltage circuit breaker, and it is a kind of existing hand switch effect, can carry out decompression, under-voltage, overload and the electrical equipment of short-circuit protection again automatically.It can be used to distribute electric energy; Do not start asynchronous motor continually; Power circuit and motor etc. are carried out protection, can automatic shutdown circuit when serious overload or short circuit and fault such as under-voltage take place for their, its function is equivalent to Fuse switch and the combination of crossing underheat relay etc.And behind the disjunction fault current, generally need not change parts, obtained to use widely.
The main effect of circuit breaker is to have short-circuit protection, overload protection function.In electrical equipment overload or abnormal running, as break down, meeting automatic disconnection switch plays the effect of protection electrical equipment and circuit; Have earth leakage protective circuit breaker in addition, have creepage protection function.
Traditional circuit breaker mainly is to lean on the position and the label of the button of circuit breaker to judge that circuit breaker is in disconnection or conducting state in use.If but take place that label comes off or fuzzy then can not very clearly judge circuit breaker and be in and break off or conducting state.
Summary of the invention
Deficiency to prior art; The utility model provides a kind of miniature circuit breaker; This circuit breaker is provided with inspection hole, can watch circuit breaker through inspection hole and be in disconnection or conducting state, judges that more easily circuit breaker is in disconnection or conducting state.
For solving technique scheme, the utility model provides following technical proposals to be able to solve.
A kind of miniature circuit breaker comprises housing, and said housing is provided with inspection hole.
In the technique scheme, said inspection hole is provided with four, and being centered close on the same straight line of said inspection hole.
Compare with prior art, the beneficial effect of the utility model is: the utility model can be watched circuit breaker through inspection hole and be in disconnection or conducting state, thereby judges that more easily circuit breaker is in disconnection or conducting state.
Description of drawings
Fig. 1 is the structural representation of a kind of miniature circuit breaker of the utility model.
Embodiment
Below in conjunction with description of drawings a kind of miniature circuit breaker of the utility model is done further explain.
Referring to Fig. 1, a kind of miniature circuit breaker comprises housing 1, and said housing 1 is provided with the wiring contact 2 that is used for wiring, also is provided with the handle 3 that is used to break off circuit operation in the said housing 1 of perhaps conducting on the said housing 1.
Said housing 1 is provided with the inspection hole 4 that is used to observe said housing 1 inside.When circuit breaker was in off-state, what show through inspection hole 4 was green light, and when circuit breaker was in conducting state, what show through inspection hole 4 was red light.Thereby judge that more easily circuit breaker is in disconnection or conducting state.
Every circuitry phase running status on the circuit breaker can both be observed for ease, as preferably, has been arranged side by side 4 inspection holes 4 on the said housing 1.It mainly is to let the user can observe circuit breaker respectively be in disconnection or conducting state mutually.
Claims (2)
1. a miniature circuit breaker comprises housing (1), it is characterized in that, said housing (1) is provided with inspection hole (4).
2. a kind of miniature circuit breaker according to claim 1 is characterized in that, said inspection hole (4) is provided with four, and being centered close on the same straight line of said inspection hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200620123U CN202473781U (en) | 2012-02-24 | 2012-02-24 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200620123U CN202473781U (en) | 2012-02-24 | 2012-02-24 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473781U true CN202473781U (en) | 2012-10-03 |
Family
ID=46921924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200620123U Expired - Fee Related CN202473781U (en) | 2012-02-24 | 2012-02-24 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473781U (en) |
-
2012
- 2012-02-24 CN CN2012200620123U patent/CN202473781U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20140224 |