GB886348A - Improvements in or relating to thermal circuit breakers - Google Patents
Improvements in or relating to thermal circuit breakersInfo
- Publication number
- GB886348A GB886348A GB36385/58A GB3638558A GB886348A GB 886348 A GB886348 A GB 886348A GB 36385/58 A GB36385/58 A GB 36385/58A GB 3638558 A GB3638558 A GB 3638558A GB 886348 A GB886348 A GB 886348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- contacts
- contact
- nov
- rod
- 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
- 238000010276 construction Methods 0.000 abstract 1
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
- H01H73/22—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 having electrothermal release and no other automatic release
- H01H73/30—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 having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
-
- 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
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
- H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
-
- 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal mechanism
Landscapes
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
886,348. Electrically released switches. TELEMECANIQUE ELECTRIQUE. Nov. 12, 1958 [Nov. 21, 1957; July 3, 1958], No. 36385/58. Class 38 (5). A thermally-operated circuit-breaker comprises two resiliently-mounted contacts 9a, 12a held in contact by a movable projection 25 on a bimetal strip 27 on a shaft 26, the movement of which is controlled by a further bimetal 28 carrying the current to be controlled. The contact 12a is pivoted on a pin 13 of an insulating member 14 mounted on a resilient strip 15 so that by deforming the strip by a cam surface 18b on an adjusting knob, the overlap of the contact and projection 25 (and thus the operating point of the breaker) can be varied. Both contacts are arrested during opening by a rod 20 and flange 24 and are movable together by the rod in resetting. A reset button 21 is provided. A modified construction in which the two contacts are pivoted direct to the strip 15 and separated by a helical spring is also disclosed. Figs. 4-7 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1131786X | 1957-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB886348A true GB886348A (en) | 1962-01-03 |
Family
ID=9638053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36385/58A Expired GB886348A (en) | 1957-11-21 | 1958-11-12 | Improvements in or relating to thermal circuit breakers |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1131786B (en) |
FR (1) | FR1192288A (en) |
GB (1) | GB886348A (en) |
NL (2) | NL109156C (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB497279A (en) * | 1937-06-15 | 1938-12-15 | British Thomson Houston Co Ltd | Improvements in and relating to thermostatic controlling devices |
BE510632A (en) * | 1951-08-31 |
-
0
- NL NL232674D patent/NL232674A/xx unknown
- NL NL109156D patent/NL109156C/xx active
-
1957
- 1957-11-21 FR FR1192288D patent/FR1192288A/en not_active Expired
-
1958
- 1958-11-12 GB GB36385/58A patent/GB886348A/en not_active Expired
- 1958-11-12 DE DET15874A patent/DE1131786B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
NL232674A (en) | |
DE1131786B (en) | 1962-06-20 |
NL109156C (en) | |
FR1192288A (en) | 1959-10-26 |
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