ZA778B - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
ZA778B
ZA778B ZA770008A ZA778A ZA778B ZA 778 B ZA778 B ZA 778B ZA 770008 A ZA770008 A ZA 770008A ZA 778 A ZA778 A ZA 778A ZA 778 B ZA778 B ZA 778B
Authority
ZA
South Africa
Prior art keywords
circuit breaker
breaker
circuit
Prior art date
Application number
ZA770008A
Inventor
C Oster
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Publication of ZA778B publication Critical patent/ZA778B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/42—Impedances connected with contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/06—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electromagnetic opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
ZA770008A 1974-04-29 1975-04-22 Circuit breaker ZA778B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/465,399 US3944953A (en) 1974-04-29 1974-04-29 Current limiting circuit breaker

Publications (1)

Publication Number Publication Date
ZA778B true ZA778B (en) 1977-03-30

Family

ID=23847652

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA770008A ZA778B (en) 1974-04-29 1975-04-22 Circuit breaker

Country Status (3)

Country Link
US (1) US3944953A (en)
GB (1) GB1511886A (en)
ZA (1) ZA778B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255732A (en) * 1978-10-16 1981-03-10 Westinghouse Electric Corp. Current limiting circuit breaker
JPS5669745A (en) * 1979-11-10 1981-06-11 Terasaki Denki Sangyo Kk Circuit breaker
GB9002678D0 (en) * 1990-02-07 1990-04-04 Mk Electric Ltd Improvements in or relating to electric switches
US5430419A (en) * 1994-01-13 1995-07-04 Square D Double break circuit breaker having improved secondary section
US5498847A (en) * 1994-01-13 1996-03-12 Square D Company Arc stack for a circuit breaker
US5680081A (en) * 1994-01-13 1997-10-21 Square D Company Circuit breaker having double break mechanism
US5504292A (en) * 1994-01-13 1996-04-02 Square D Company Arc stack for a circuit breaker
US5504291A (en) * 1994-02-14 1996-04-02 Square D Company Contact blade assembly for a circuit breaker
US5424699A (en) * 1994-02-14 1995-06-13 Square D Company Blow-off terminal for a circuit breaker
US5500496A (en) * 1994-02-14 1996-03-19 Square D Company Handle assembly for a circuit breaker
US5444423A (en) * 1994-02-14 1995-08-22 Square D Latch mechanism for a circuit breaker
US5539167A (en) * 1994-02-14 1996-07-23 Square D. Company Blade suspension assemlby for a circuit breaker
US5608198A (en) * 1995-06-26 1997-03-04 Square D Company Circuit breaker arrangement for protection against electrical arcs
US5581063A (en) * 1995-06-26 1996-12-03 Square D Company Arc-resistant shield for protecting a movable contact carrier of 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
US5894260A (en) * 1996-12-19 1999-04-13 Siemens Energy & Automation, Inc. Thermal sensing bi-metal trip actuator for a circuit breaker
US6034586A (en) * 1998-10-21 2000-03-07 Airpax Corporation, Llc Parallel contact circuit breaker
ES2527593T3 (en) * 2011-01-19 2015-01-27 Cooper Technologies Company Modules and disconnecting devices fuse switches electronically controlled
EP2551867A1 (en) * 2011-07-28 2013-01-30 Eaton Industries GmbH Switch for direct current operation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068379A (en) * 1957-04-11 1962-12-11 Fed Pacific Electric Co Circuit protective apparatus
US3032629A (en) * 1957-07-12 1962-05-01 Ite Circuit Breaker Ltd Tripping mechanism for a combined circuit breaker and current limiting fuse
US3136921A (en) * 1957-12-10 1964-06-09 Westinghouse Electric Corp Circuit breakers

Also Published As

Publication number Publication date
US3944953A (en) 1976-03-16
GB1511886A (en) 1978-05-24

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