GB662000A - Improvements relating to thermally-releasable electric switches - Google Patents
Improvements relating to thermally-releasable electric switchesInfo
- Publication number
- GB662000A GB662000A GB1409149A GB1409149A GB662000A GB 662000 A GB662000 A GB 662000A GB 1409149 A GB1409149 A GB 1409149A GB 1409149 A GB1409149 A GB 1409149A GB 662000 A GB662000 A GB 662000A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electromagnet
- contacts
- thermally
- improvements relating
- electric switches
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/04—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrothermal opening
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
662,000. Switches, partly electromagnetic. C.A.V., Ltd. May 18, 1950. [May 26, 1949] No. 14091/49. Class 38 (v). The movable contact i of a switch is mounted. on a bimetal strip h carried by an armature e which is loaded by a spring f and pivoted on a pole-piece c of an electromagnet b, the cooperating contact j being loaded by a spring k. The contacts are closed by depression of a push-button g, thereby energising the electromagnet which holds the contacts closed. On an overload, the bimetal strip, which is connected in series with the electromagnet and the contacts, deflects and opens the latter thereby de-energising the electromagnet. The contacts may, alternatively, be opened by depression of a push-button m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1409149A GB662000A (en) | 1949-05-26 | 1949-05-26 | Improvements relating to thermally-releasable electric switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1409149A GB662000A (en) | 1949-05-26 | 1949-05-26 | Improvements relating to thermally-releasable electric switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB662000A true GB662000A (en) | 1951-11-28 |
Family
ID=10034824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1409149A Expired GB662000A (en) | 1949-05-26 | 1949-05-26 | Improvements relating to thermally-releasable electric switches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB662000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1152470B (en) * | 1952-02-16 | 1963-08-08 | Siemens Ag | Time switch with a heated bimetal strip |
| GB2177543A (en) * | 1985-06-14 | 1987-01-21 | Hsieh Teng Jui | Automatic circuit breakers |
-
1949
- 1949-05-26 GB GB1409149A patent/GB662000A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1152470B (en) * | 1952-02-16 | 1963-08-08 | Siemens Ag | Time switch with a heated bimetal strip |
| GB2177543A (en) * | 1985-06-14 | 1987-01-21 | Hsieh Teng Jui | Automatic circuit breakers |
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