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GB1373370A - Protective switch - Google Patents

Protective switch

Info

Publication number
GB1373370A
GB1373370A GB5229871A GB5229871A GB1373370A GB 1373370 A GB1373370 A GB 1373370A GB 5229871 A GB5229871 A GB 5229871A GB 5229871 A GB5229871 A GB 5229871A GB 1373370 A GB1373370 A GB 1373370A
Authority
GB
United Kingdom
Prior art keywords
screw
tripping
nut
adjusting device
nov
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
GB5229871A
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 DE19702055611 external-priority patent/DE2055611C/en
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of GB1373370A publication Critical patent/GB1373370A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H71/7418—Adjusting both electrothermal and electromagnetic mechanism
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Abstract

1373370 Automatic circuit-breakers SIEMENS AG 10 Nov 1971 [12 Nov 1970] 52298/71 Heading H1N A circuit-breaker with electromagnetic and thermal tripping means has a combined adjusting device by which the means can have their tripping levels adjusted independently. As shown, the adjusting device comprises a screw 9 extending through a screwed aperture in a fixed bracket 24, rotation of the screw altering the pressure applied by a spring 25 on the armature of the electromagnetic tripping means. The thermal tripping device is a bimetallic element 14 mounted on a resilient member 23 attached to the bracket 24. A nut 10 on the screw 9 may be turned on the screw to alter the position of the bi-metallic element 14 relative to a tripping lever 7. When adjusting either tripping means by turning the screw or nut, the other component (nut or screw) of the adjusting device would be held stationary.
GB5229871A 1970-11-12 1971-11-10 Protective switch Expired GB1373370A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055611 DE2055611C (en) 1970-11-12 Circuit breaker

Publications (1)

Publication Number Publication Date
GB1373370A true GB1373370A (en) 1974-11-13

Family

ID=5787867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5229871A Expired GB1373370A (en) 1970-11-12 1971-11-10 Protective switch

Country Status (4)

Country Link
AT (1) AT310849B (en)
CH (1) CH530089A (en)
FR (1) FR2113887B1 (en)
GB (1) GB1373370A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3342469A1 (en) * 1983-11-24 1985-06-05 Bbc Brown Boveri & Cie ELECTRIC SWITCH
FR2735614B1 (en) * 1995-06-19 1997-07-18 Schneider Electric Sa DEVICE FOR ADJUSTING THE THERMAL TRIGGER OF A CIRCUIT BREAKER

Also Published As

Publication number Publication date
CH530089A (en) 1972-10-31
FR2113887A1 (en) 1972-06-30
AT310849B (en) 1973-10-25
DE2055611A1 (en) 1972-05-25
DE2055611B2 (en) 1973-01-25
FR2113887B1 (en) 1974-05-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees