GB886348A - Improvements in or relating to thermal circuit breakers - Google Patents

Improvements in or relating to thermal circuit breakers

Info

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
Application number
GB36385/58A
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.)
Telemecanique SA
Original Assignee
Telemecanique Electrique SA
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 Telemecanique Electrique SA filed Critical Telemecanique Electrique SA
Publication of GB886348A publication Critical patent/GB886348A/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
    • H01H73/22—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).
GB36385/58A 1957-11-21 1958-11-12 Improvements in or relating to thermal circuit breakers Expired GB886348A (en)

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) NL232674A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR1192288A (en) 1959-10-26
NL109156C (en)
NL232674A (en)
DE1131786B (en) 1962-06-20

Similar Documents

Publication Publication Date Title
GB828754A (en) Pushbutton-operated overload switch
GB728708A (en) Improvements in or relating to electric circuit breakers
GB878342A (en) Electric switch mechanism
GB684736A (en) Improvements in or relating to thermally-operated circuit breakers
GB1028634A (en) Overload protective electric switch
GB687258A (en) Improvements in safety switches for electrically heated appliances
GB886348A (en) Improvements in or relating to thermal circuit breakers
GB912941A (en) Electrical heating and ventilating apparatus
GB634238A (en) Improvements in thermally operable electric switches or circuit-breakers
GB808962A (en) Ambient temperature compensated electrical switch
GB955587A (en) Pushbutton operated electric circuit breaker
GB884814A (en) Improvements in thermostatic switches
GB709086A (en) Improvements in and relating to automatic electric circuit breakers
GB898533A (en) Improvements in or relating to thermally operated electric circuit breakers
GB953773A (en) Electric circuit breakers
GB739071A (en) Thermally-responsive electric switches
GB684137A (en) Improvements in thermostatic and circuit breaker devices
GB808715A (en) Improvements in and relating to bimetallic electric circuit breakers
GB884603A (en) Electric circuit control apparatus
GB875203A (en) Push button electric switch
GB1094586A (en) Improvements in or relating to electrical snap-action switches
GB994787A (en) Improvements in or relating to snap action electric switches
GB1008874A (en) Electric circuit-breakers
GB820682A (en) Thermally-operated snap-action electric switch
GB568429A (en) Improvements in electric circuit interrupters