GB300276A - Improvements in or relating to protective devices for electrical apparatus - Google Patents

Improvements in or relating to protective devices for electrical apparatus

Info

Publication number
GB300276A
GB300276A GB32413/28A GB3241328A GB300276A GB 300276 A GB300276 A GB 300276A GB 32413/28 A GB32413/28 A GB 32413/28A GB 3241328 A GB3241328 A GB 3241328A GB 300276 A GB300276 A GB 300276A
Authority
GB
United Kingdom
Prior art keywords
relating
electrical apparatus
protective devices
protective
devices
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
GB32413/28A
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Publication of GB300276A publication Critical patent/GB300276A/en
Expired legal-status Critical Current

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
    • 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
    • H01H71/164—Heating elements

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Resistance Heating (AREA)
GB32413/28A 1927-11-10 1928-11-06 Improvements in or relating to protective devices for electrical apparatus Expired GB300276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US232291A US1763137A (en) 1927-11-10 1927-11-10 Thermostatic device

Publications (1)

Publication Number Publication Date
GB300276A true GB300276A (en) 1929-11-28

Family

ID=22872554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32413/28A Expired GB300276A (en) 1927-11-10 1928-11-06 Improvements in or relating to protective devices for electrical apparatus

Country Status (4)

Country Link
US (1) US1763137A (enrdf_load_stackoverflow)
BE (1) BE300276A (enrdf_load_stackoverflow)
DE (1) DE560670C (enrdf_load_stackoverflow)
GB (1) GB300276A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768342A (en) * 1953-03-09 1956-10-23 Metals & Controls Corp Motor protective switch
US2840666A (en) * 1954-04-13 1958-06-24 Greenhut Joseph Thermal motor protection switch
US3140370A (en) * 1960-03-17 1964-07-07 Texas Instruments Inc Sealed thermally responsive switching device

Also Published As

Publication number Publication date
BE300276A (enrdf_load_stackoverflow)
DE560670C (de) 1932-10-05
US1763137A (en) 1930-06-10

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