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)
  • Electromagnets (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (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 (pt)
BE (2) BE510864A (pt)
CH (2) CH292221A (pt)
FR (2) FR1046582A (pt)
GB (1) GB722615A (pt)
NL (1) NL83752C (pt)

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
US2721241A (en) 1955-10-18
CH307222A (de) 1955-05-15
BE510864A (pt)
CH292221A (de) 1953-07-31
FR1046582A (fr) 1953-12-08
NL83752C (pt)
FR62685E (fr) 1955-06-16
BE502971A (pt)

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