GB722615A - Improvements in and relating to automatic electric switches having overload release means - Google Patents

Improvements in and relating to automatic electric switches having overload release means

Info

Publication number
GB722615A
GB722615A GB8840/52A GB884052A GB722615A GB 722615 A GB722615 A GB 722615A GB 8840/52 A GB8840/52 A GB 8840/52A GB 884052 A GB884052 A GB 884052A GB 722615 A GB722615 A GB 722615A
Authority
GB
United Kingdom
Prior art keywords
coil
relating
release means
automatic electric
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
Application number
GB8840/52A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB706452A external-priority patent/GB721300A/en
Application filed by Individual filed Critical Individual
Publication of GB722615A publication Critical patent/GB722615A/en
Expired legal-status Critical Current

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
    • H01H73/48—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 both electrothermal and electromagnetic automatic release
    • H01H73/50—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 both electrothermal and electromagnetic automatic release reset by lever
    • 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
    • H01H73/48—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 both electrothermal and electromagnetic automatic release
    • H01H73/56—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 both electrothermal and electromagnetic automatic release reset by push-button, pull-knob or slide

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Electromagnets (AREA)
GB8840/52A 1951-09-28 1952-04-07 Improvements in and relating to automatic electric switches having overload release means Expired GB722615A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2721241X 1951-09-28
GB706452A GB721300A (en) 1952-03-19 1952-03-19 Improvements in automatic electric switches having overload release means

Publications (1)

Publication Number Publication Date
GB722615A true GB722615A (en) 1955-01-26

Family

ID=32299375

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8840/52A Expired GB722615A (en) 1951-09-28 1952-04-07 Improvements in and relating to automatic electric switches having overload release means

Country Status (6)

Country Link
US (1) US2721241A (US08088918-20120103-C00476.png)
BE (2) BE510864A (US08088918-20120103-C00476.png)
CH (2) CH292221A (US08088918-20120103-C00476.png)
FR (2) FR1046582A (US08088918-20120103-C00476.png)
GB (1) GB722615A (US08088918-20120103-C00476.png)
NL (1) NL83752C (US08088918-20120103-C00476.png)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072713B (de) * 1960-01-07 VEB Elektroinstallation Annaberg, Annaberg-Buchhol'z (Erzgeb.) Kleinselbstschalter
DE1052532B (de) * 1954-07-13 1959-03-12 Siemens Ag Mit Abdeckkappe versehener Kleinselbstschalter
US3688234A (en) * 1970-04-27 1972-08-29 Matsushita Electric Works Ltd Push button type circuit protector
FR2516304A1 (fr) * 1981-11-09 1983-05-13 Telemecanique Electrique Interrupteur a commande mecanique et ouverture automatique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456945A (en) * 1944-05-16 1948-12-21 Westinghouse Electric Corp Relay
US2573306A (en) * 1948-08-11 1951-10-30 Gen Electric Electric circuit breaker
US2494868A (en) * 1948-09-14 1950-01-17 Trumbull Electric Mfg Co Circuit breaker

Also Published As

Publication number Publication date
FR1046582A (fr) 1953-12-08
FR62685E (fr) 1955-06-16
CH292221A (de) 1953-07-31
BE502971A (US08088918-20120103-C00476.png)
BE510864A (US08088918-20120103-C00476.png)
CH307222A (de) 1955-05-15
US2721241A (en) 1955-10-18
NL83752C (US08088918-20120103-C00476.png)

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