GB908954A - Improvements in and connected with electric circuit breakers - Google Patents
Improvements in and connected with electric circuit breakersInfo
- Publication number
- GB908954A GB908954A GB290260A GB290260A GB908954A GB 908954 A GB908954 A GB 908954A GB 290260 A GB290260 A GB 290260A GB 290260 A GB290260 A GB 290260A GB 908954 A GB908954 A GB 908954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- circuitbreaker
- breaker
- electric circuit
- high temperature
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/121—Protection of release mechanisms
Landscapes
- Breakers (AREA)
Abstract
908,954. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A. Dec. 8, 1960 [Jan. 27, 1960], No. 2902/60. Class 38 (5). The circuit-breaker of Specifications 905,639 and 905,641 is provided with a bimetallic element A which in the event of an unduly high temperature within the casing of the circuitbreaker, trips the circuit-breaker if not already tripped and prevents the resetting of the circuitbreaker whilst the high temperature remains. The element A is welded to the frame 13a of the electromagnetic tripping device and when sufficiently heated holds the catch plate 20 in such a position that the re-latching of a trip lever 24a cannot be effected.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB290260A GB908954A (en) | 1960-01-27 | 1960-01-27 | Improvements in and connected with electric circuit breakers |
FR848364A FR1277022A (en) | 1960-01-27 | 1960-12-29 | Electrical circuit breakers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB290260A GB908954A (en) | 1960-01-27 | 1960-01-27 | Improvements in and connected with electric circuit breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB908954A true GB908954A (en) | 1962-10-24 |
Family
ID=9748196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB290260A Expired GB908954A (en) | 1960-01-27 | 1960-01-27 | Improvements in and connected with electric circuit breakers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB908954A (en) |
-
1960
- 1960-01-27 GB GB290260A patent/GB908954A/en not_active Expired
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