GB808715A - Improvements in and relating to bimetallic electric circuit breakers - Google Patents

Improvements in and relating to bimetallic electric circuit breakers

Info

Publication number
GB808715A
GB808715A GB2522/57A GB252257A GB808715A GB 808715 A GB808715 A GB 808715A GB 2522/57 A GB2522/57 A GB 2522/57A GB 252257 A GB252257 A GB 252257A GB 808715 A GB808715 A GB 808715A
Authority
GB
United Kingdom
Prior art keywords
switch
spring
heating coil
cover
contact
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
GB2522/57A
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of GB808715A publication Critical patent/GB808715A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/002—Structural combination of a time delay electrothermal relay with an electrothermal protective relay, e.g. a start relay

Landscapes

  • Thermally Actuated Switches (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

808,715. Thermal switches; control of A.C. motors. ELLENBERGER & POENSGEN G.m.b.H. Jan. 23, 1957 [July 19, 1956], No. 2522/57. Classes 38 (3) and 38 (5). A thermal and electric overload protection switch 1 comprises a bi-metallio strip 4 heated by a heating coil 5 and carrying a contact 9 which co-operates with a contact 10 mounted on a spring 11 provided with an adjustable stop 12. The switch is connected in the circuit to be protected through a terminal strip 8, via a bridge member 7, and a terminal strip 13. Passage of overload current through the heating coil 5 causes upward deflection of the bi-metal 4 and a following upward movement of the spring 11 until movement of the spring is arrested by the stop 12 when the contacts 9, 10 open. The switch may be combined, as shown, with a bimetallic motor-starting switch 2 of the type described in Specification 788,654, [Group XXXVI], the switches being mounted in separate compartments in a housing with the terminals brought out either through the cover 27 (Fig. 7, not shown) or between the cover and base.
GB2522/57A 1956-07-19 1957-01-23 Improvements in and relating to bimetallic electric circuit breakers Expired GB808715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE12694A DE1091210B (en) 1956-07-19 1956-07-19 Overcurrent switch

Publications (1)

Publication Number Publication Date
GB808715A true GB808715A (en) 1959-02-11

Family

ID=7068394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2522/57A Expired GB808715A (en) 1956-07-19 1957-01-23 Improvements in and relating to bimetallic electric circuit breakers

Country Status (4)

Country Link
US (2) US2876311A (en)
DE (1) DE1091210B (en)
FR (1) FR1179033A (en)
GB (1) GB808715A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986685A (en) * 1959-03-16 1961-05-30 Texas Instruments Inc Overload protective apparatus
US3243554A (en) * 1964-01-23 1966-03-29 Mechanical Products Inc Combination motor protector and start relay
DE102004054176A1 (en) * 2004-11-10 2006-05-24 Abb Patent Gmbh Thermal release

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE299863C (en) *
DE319620C (en) * 1919-01-19 1920-03-12 Franklin Ind Ges M B H Self-breaker for electrically heated devices
NL25924C (en) * 1927-03-19
US1728092A (en) * 1927-03-31 1929-09-10 Monitor Controller Co Thermal relay
DE594744C (en) * 1930-03-08 1934-03-21 Siemens Schuckertwerke Akt Ges Overcurrent heat release
FR771685A (en) * 1933-07-13 1934-10-13 Alsthom Cgee New thermostatic control for electric switches
US2231463A (en) * 1937-08-13 1941-02-11 Emerson Electric Mfg Co Heat actuated switch
DE684359C (en) * 1937-08-19 1939-11-27 Aeg Overcurrent heat relay or release
US2255672A (en) * 1938-07-01 1941-09-09 William C Mason Electrical control device
US2329119A (en) * 1940-07-05 1943-09-07 Edison Inc Thomas A Control system
US2352713A (en) * 1942-03-04 1944-07-04 Bryant Electric Co Fluorescent lamp starter
US2618721A (en) * 1945-06-16 1952-11-18 Gen Motors Corp Control with column loaded strip
GB624038A (en) * 1947-03-18 1949-05-26 Basil Ernest Watkins Improvements in and relating to electric switches and circuit breakers
GB647659A (en) * 1948-01-19 1950-12-20 Lucas Ltd Joseph Improvements relating to switching means for vehicle lighting systems
US2499208A (en) * 1948-04-21 1950-02-28 Gen Electric Thermally actuated switch
DE851378C (en) * 1950-10-22 1952-10-02 August Wiemers Thermal auxiliary phase disconnection and thermal overcurrent protection for electric motors
US2673908A (en) * 1951-12-29 1954-03-30 Ite Circuit Breaker Ltd Instantaneous trip circuit breaker
US2754392A (en) * 1952-11-04 1956-07-10 Benedik Fedor Circuit interrupter
BE528969A (en) * 1953-07-29

Also Published As

Publication number Publication date
US2876311A (en) 1959-03-03
DE1091210B (en) 1960-10-20
USB354822I5 (en)
FR1179033A (en) 1959-05-20

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