GB1368576A - Thermal safety cut-out - Google Patents
Thermal safety cut-outInfo
- Publication number
- GB1368576A GB1368576A GB341572A GB341572A GB1368576A GB 1368576 A GB1368576 A GB 1368576A GB 341572 A GB341572 A GB 341572A GB 341572 A GB341572 A GB 341572A GB 1368576 A GB1368576 A GB 1368576A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- block
- cut
- rod
- open
- 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
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5409—Bistable switches; Resetting means
Abstract
1368576 Thermal switches M VIDALENQ 25 Jan 1972 [26 Jan 1971] 3415/72 Heading H1N A thermal cut-out comprises portions 1 and 11 provided with contacts 16 and 12 biased to open position and held closed by a locking device 33, 35 release of which to allow contacts 16, 12 to open is carried out by over-centre thermally responsive means 42 and which is inaccessible from the exterior of the cut-out and which prevents reclosing of contacts 16, 12 as long as it has not been reset. Contact carrier 11 is urged upwards to open contacts 12, 16 by spring 23 but is restrained by rod 25 whose lower end 29 engages sliding block 33 urged to the right by spring 39 but prevented from moving by latch 35. When bimetal disc 42 snaps over it pivots latch 35 clockwise about pivot 36 and releases block 33 which slides to the right freeing rod 25 so that carrier 11 can move upwards. After block 33 has moved to the right, portion 41 of block 33 lies beneath rod 25 to prevent it being moved downwards until locking device 33, 35 has been reset. There are three sets of contacts 16, 12 in the cut-out.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7102519A FR2123646A5 (en) | 1971-01-26 | 1971-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1368576A true GB1368576A (en) | 1974-10-02 |
Family
ID=9070909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB341572A Expired GB1368576A (en) | 1971-01-26 | 1972-01-25 | Thermal safety cut-out |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2202544A1 (en) |
| FR (1) | FR2123646A5 (en) |
| GB (1) | GB1368576A (en) |
| IT (1) | IT946227B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2269480A (en) * | 1992-07-16 | 1994-02-09 | Electrovac | Thermal switch |
| CN111886666A (en) * | 2018-09-20 | 2020-11-03 | 株式会社生方制作所 | Direct current breaker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT372546B (en) * | 1982-03-09 | 1983-10-25 | Richard Fonovits Kommanditgese | SAFETY TEMPERATURE LIMITERS |
-
1971
- 1971-01-26 FR FR7102519A patent/FR2123646A5/fr not_active Expired
- 1971-12-20 IT IT3262371Q patent/IT946227B/en active
-
1972
- 1972-01-20 DE DE19722202544 patent/DE2202544A1/en active Pending
- 1972-01-25 GB GB341572A patent/GB1368576A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2269480A (en) * | 1992-07-16 | 1994-02-09 | Electrovac | Thermal switch |
| CN111886666A (en) * | 2018-09-20 | 2020-11-03 | 株式会社生方制作所 | Direct current breaker |
| CN111886666B (en) * | 2018-09-20 | 2023-08-08 | 株式会社生方制作所 | DC circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2202544A1 (en) | 1972-08-03 |
| FR2123646A5 (en) | 1972-09-15 |
| IT946227B (en) | 1973-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |