ZA762506B - An improvement in or relating to circuit breaker - Google Patents

An improvement in or relating to circuit breaker

Info

Publication number
ZA762506B
ZA762506B ZA762506A ZA762506A ZA762506B ZA 762506 B ZA762506 B ZA 762506B ZA 762506 A ZA762506 A ZA 762506A ZA 762506 A ZA762506 A ZA 762506A ZA 762506 B ZA762506 B ZA 762506B
Authority
ZA
South Africa
Prior art keywords
relating
improvement
circuit breaker
breaker
circuit
Prior art date
Application number
ZA762506A
Other languages
English (en)
Inventor
A Maier
W Stephenson
Original Assignee
Westinghouse Electric 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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ZA762506B publication Critical patent/ZA762506B/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
ZA762506A 1975-05-22 1976-04-27 An improvement in or relating to circuit breaker ZA762506B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/579,756 US4047134A (en) 1975-05-22 1975-05-22 Circuit breaker

Publications (1)

Publication Number Publication Date
ZA762506B true ZA762506B (en) 1977-04-27

Family

ID=24318232

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA762506A ZA762506B (en) 1975-05-22 1976-04-27 An improvement in or relating to circuit breaker

Country Status (5)

Country Link
US (1) US4047134A (enExample)
JP (1) JPS51142677A (enExample)
AU (1) AU503109B2 (enExample)
NZ (1) NZ180846A (enExample)
ZA (1) ZA762506B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472696A (en) * 1982-12-27 1984-09-18 Gte Laboratories Incorporated Circuit breaker
US5894260A (en) * 1996-12-19 1999-04-13 Siemens Energy & Automation, Inc. Thermal sensing bi-metal trip actuator for a circuit breaker
US5844188A (en) * 1996-12-19 1998-12-01 Siemens Energy & Automation, Inc. Circuit breaker with improved trip mechanism
US6087914A (en) * 1996-12-19 2000-07-11 Siemens Energy & Automation, Inc. Circuit breaker combination thermal and magnetic trip actuator
US5866996A (en) * 1996-12-19 1999-02-02 Siemens Energy & Automation, Inc. Contact arm with internal in-line spring
US5872495A (en) * 1997-12-10 1999-02-16 Siemens Energy & Automation, Inc. Variable thermal and magnetic structure for a circuitbreaker trip unit
US8134092B2 (en) * 2009-08-21 2012-03-13 Schneider Electric USA, Inc. Circuit breaker cover attachment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659783A (en) * 1951-07-17 1953-11-17 Gen Electric Electric circuit breaker
US2925481A (en) * 1954-10-07 1960-02-16 Gen Electric Circuit breaker
US3462716A (en) * 1967-03-07 1969-08-19 Westinghouse Electric Corp Circuit breaker with improved trip structure

Also Published As

Publication number Publication date
AU1349876A (en) 1977-11-03
NZ180846A (en) 1980-03-05
US4047134A (en) 1977-09-06
JPS5423104B2 (enExample) 1979-08-11
JPS51142677A (en) 1976-12-08
AU503109B2 (en) 1979-08-23

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