GB953773A - Electric circuit breakers - Google Patents
Electric circuit breakersInfo
- Publication number
- GB953773A GB953773A GB15827/62A GB1582762A GB953773A GB 953773 A GB953773 A GB 953773A GB 15827/62 A GB15827/62 A GB 15827/62A GB 1582762 A GB1582762 A GB 1582762A GB 953773 A GB953773 A GB 953773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handle
- circuit breakers
- projections
- central
- projection
- 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
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/60—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism cartridge type, e.g. screw-in cartridge
-
- 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
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/046—Means for indicating condition of the switching device exclusively by position of operating part, e.g. with additional labels or marks but no other movable indicators
Landscapes
- Breakers (AREA)
Abstract
953,773. Automatic circuit breakers. FEDERAL PACIFIC ELECTRIC CO. April 25, 1962 [May 3, 1961], No. 15827/62. Heading H2B. In the circuit breaker of Specification 739,620 the operating handle 24 and the movable contact member 18 are each provided with projections 30, 50 respectively which interfere during automatic opening to arrest the handle in a central position indicating the tripped condition. To reset the breaker the handle 24 is first moved to the off position, the projection 30 driving the projection 50 out of its path and link 28 resetting the actuator 26; the handle is then moved to the on position in the normal manner. The projections 30, 50 do not interfere during manual operation and the central position of the handle 24 is thus unattainable. The handle 24 is provided with two sets of indicia 52, 54 visible in the extreme on and off positions but both obscured by the casing in the central tripped position. In a modification (Fig. 4) the invention is applied to the multipole circuit breaker of Specification 871,931.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US107401A US3183325A (en) | 1961-05-03 | 1961-05-03 | Trip indicating circuit breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB953773A true GB953773A (en) | 1964-04-02 |
Family
ID=22316471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15827/62A Expired GB953773A (en) | 1961-05-03 | 1962-04-25 | Electric circuit breakers |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3183325A (en) |
| DE (1) | DE1855160U (en) |
| GB (1) | GB953773A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE32882E (en) * | 1982-01-01 | 1989-03-07 | Matsushita Electric Works, Ltd. | Remote control system circuit breaker |
| US4604596A (en) * | 1985-02-01 | 1986-08-05 | Matsushita Electric Works, Ltd. | Remotely controllable circuit breaker |
| DE3825443A1 (en) * | 1988-07-27 | 1990-02-01 | Asea Brown Boveri | ELECTRICAL SWITCHGEAR |
| FR2974664B1 (en) * | 2011-04-29 | 2013-12-20 | Hager Electro Sas | FAULT TRIP INDICATOR BY THE POSITION OF THE KNOB |
| ES2946269T3 (en) * | 2018-04-23 | 2023-07-14 | Abb Spa | circuit breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1967890A (en) * | 1933-05-08 | 1934-07-24 | Cutler Hammer Inc | Contact-holder for electric switches |
| US2693513A (en) * | 1952-06-18 | 1954-11-02 | Westinghouse Electric Corp | Circuit breaker |
| NL193015A (en) * | 1953-12-11 | |||
| US2806103A (en) * | 1954-01-21 | 1957-09-10 | Westinghouse Electric Corp | Circuit breaker |
| US2828388A (en) * | 1955-11-02 | 1958-03-25 | Fed Pacific Electric Co | Circuit breakers |
| US2887548A (en) * | 1957-06-26 | 1959-05-19 | Wadsworth Electric Mfg Co | Circuit breaker |
-
1961
- 1961-05-03 US US107401A patent/US3183325A/en not_active Expired - Lifetime
-
1962
- 1962-04-25 GB GB15827/62A patent/GB953773A/en not_active Expired
- 1962-05-02 DE DEF21966U patent/DE1855160U/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1855160U (en) | 1962-07-19 |
| US3183325A (en) | 1965-05-11 |
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