EP0047221A3 - Low-voltage protective circuit breaker with blocking lever - Google Patents

Low-voltage protective circuit breaker with blocking lever Download PDF

Info

Publication number
EP0047221A3
EP0047221A3 EP81730071A EP81730071A EP0047221A3 EP 0047221 A3 EP0047221 A3 EP 0047221A3 EP 81730071 A EP81730071 A EP 81730071A EP 81730071 A EP81730071 A EP 81730071A EP 0047221 A3 EP0047221 A3 EP 0047221A3
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
lever
toggle
hinge pin
locking lever
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.)
Granted
Application number
EP81730071A
Other languages
German (de)
Other versions
EP0047221B1 (en
EP0047221A2 (en
Inventor
Werner Troebel
Martin Bottcher
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 AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT81730071T priority Critical patent/ATE10688T1/en
Publication of EP0047221A2 publication Critical patent/EP0047221A2/en
Publication of EP0047221A3 publication Critical patent/EP0047221A3/en
Application granted granted Critical
Publication of EP0047221B1 publication Critical patent/EP0047221B1/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
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee

Abstract

A low-voltage circuit breaker has a locking lever to prevent transfer of the circuit breaker handle entirely into its "off" position if the movable contact is blocked in its "on" position by being welded to the fixed contact. The locking lever is rotatably mounted on the control shaft, which is pivotally moved by a drive lever which is connected to the control shaft by a toggle lever system including two toggle levers and a toggle hinge pin joining them together. The fork arms embrace a working surface on the drive lever and the toggle hinge pin. The working surface and the hinge pin are spaced closer together than the arms when the circuit breaker handle is in its "on" position to allow only partial movement of the handle toward its "off" position unless the movable contact is free to move to its "off" position before the locking lever pivots to a position in which it engages both the working surface and the toggle hinge pin. The locking lever can be formed as a double lever with a connecting web.
EP81730071A 1980-08-29 1981-08-06 Low-voltage protective circuit breaker with blocking lever Expired EP0047221B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81730071T ATE10688T1 (en) 1980-08-29 1981-08-06 LOW VOLTAGE CIRCUIT BREAKER WITH LOCKING LEVER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033213A DE3033213C2 (en) 1980-08-29 1980-08-29 Low voltage circuit breaker with a locking lever
DE3033213 1980-08-29

Publications (3)

Publication Number Publication Date
EP0047221A2 EP0047221A2 (en) 1982-03-10
EP0047221A3 true EP0047221A3 (en) 1982-10-06
EP0047221B1 EP0047221B1 (en) 1984-12-05

Family

ID=6111065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730071A Expired EP0047221B1 (en) 1980-08-29 1981-08-06 Low-voltage protective circuit breaker with blocking lever

Country Status (5)

Country Link
US (1) US4392036A (en)
EP (1) EP0047221B1 (en)
JP (1) JPS5774932A (en)
AT (1) ATE10688T1 (en)
DE (1) DE3033213C2 (en)

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FR2649826B1 (en) * 1989-07-11 1995-11-24 Merlin Gerin CONTROL MECHANISM FOR ELECTRIC CIRCUIT BREAKER
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US6232856B1 (en) 1999-11-02 2001-05-15 General Electric Company Magnetic shunt assembly
ES2249875T3 (en) 1999-11-03 2006-04-01 AEG NIEDERSPANNUNGSTECHNIK GMBH & CO. KG ROTARY CONTACT ARM ARRANGEMENT FOR SWITCH.
US6377144B1 (en) 1999-11-03 2002-04-23 General Electric Company Molded case circuit breaker base and mid-cover assembly
US6300586B1 (en) 1999-12-09 2001-10-09 General Electric Company Arc runner retaining feature
US6310307B1 (en) 1999-12-17 2001-10-30 General Electric Company Circuit breaker rotary contact arm arrangement
US6172584B1 (en) 1999-12-20 2001-01-09 General Electric Company Circuit breaker accessory reset system
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US6215379B1 (en) 1999-12-23 2001-04-10 General Electric Company Shunt for indirectly heated bimetallic strip
US6281461B1 (en) 1999-12-27 2001-08-28 General Electric Company Circuit breaker rotor assembly having arc prevention structure
US6346869B1 (en) 1999-12-28 2002-02-12 General Electric Company Rating plug for circuit breakers
US6211758B1 (en) 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
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US6204743B1 (en) 2000-02-29 2001-03-20 General Electric Company Dual connector strap for a rotary contact circuit breaker
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US6340925B1 (en) 2000-03-01 2002-01-22 General Electric Company Circuit breaker mechanism tripping cam
US6379196B1 (en) * 2000-03-01 2002-04-30 General Electric Company Terminal connector for a circuit breaker
US6346868B1 (en) 2000-03-01 2002-02-12 General Electric Company Circuit interrupter operating mechanism
US6459349B1 (en) 2000-03-06 2002-10-01 General Electric Company Circuit breaker comprising a current transformer with a partial air gap
US6366438B1 (en) 2000-03-06 2002-04-02 General Electric Company Circuit interrupter rotary contact arm
US6211757B1 (en) 2000-03-06 2001-04-03 General Electric Company Fast acting high force trip actuator
US6496347B1 (en) 2000-03-08 2002-12-17 General Electric Company System and method for optimization of a circuit breaker mechanism
US6429659B1 (en) 2000-03-09 2002-08-06 General Electric Company Connection tester for an electronic trip unit
US6366188B1 (en) 2000-03-15 2002-04-02 General Electric Company Accessory and recess identification system for circuit breakers
US6232859B1 (en) 2000-03-15 2001-05-15 General Electric Company Auxiliary switch mounting configuration for use in a molded case circuit breaker
US6218919B1 (en) 2000-03-15 2001-04-17 General Electric Company Circuit breaker latch mechanism with decreased trip time
US6459059B1 (en) * 2000-03-16 2002-10-01 General Electric Company Return spring for a circuit interrupter operating mechanism
US6421217B1 (en) 2000-03-16 2002-07-16 General Electric Company Circuit breaker accessory reset system
US6586693B2 (en) 2000-03-17 2003-07-01 General Electric Company Self compensating latch arrangement
US6479774B1 (en) 2000-03-17 2002-11-12 General Electric Company High energy closing mechanism for circuit breakers
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
FR2806548B1 (en) 2000-03-17 2002-08-23 Ge Power Controls France EXTRACTABLE MECHANISM FOR CIRCUIT BREAKERS
US6388213B1 (en) 2000-03-17 2002-05-14 General Electric Company Locking device for molded case circuit breakers
US6476698B1 (en) 2000-03-17 2002-11-05 General Electric Company Convertible locking arrangement on breakers
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
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US6373357B1 (en) 2000-05-16 2002-04-16 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6995640B2 (en) * 2000-05-16 2006-02-07 General Electric Company Pressure sensitive trip mechanism for circuit breakers
US6380501B1 (en) 2000-08-17 2002-04-30 General Electric Company Trip indication capability for circuit breaker remote handle operator
US6400245B1 (en) 2000-10-13 2002-06-04 General Electric Company Draw out interlock for circuit breakers
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US6806800B1 (en) 2000-10-19 2004-10-19 General Electric Company Assembly for mounting a motor operator on a circuit breaker
US6531941B1 (en) 2000-10-19 2003-03-11 General Electric Company Clip for a conductor in a rotary breaker
ES2172499T3 (en) * 2000-10-19 2002-10-01 Hager Electro BRUSH CLOSURE MECHANISM FOR MODULAR ELECTRICAL DEVICE TYPE OF SWITCH.
US6362711B1 (en) 2000-11-10 2002-03-26 General Electric Company Circuit breaker cover with screw locating feature
US6380829B1 (en) 2000-11-21 2002-04-30 General Electric Company Motor operator interlock and method for circuit breakers
US6448522B1 (en) 2001-01-30 2002-09-10 General Electric Company Compact high speed motor operator for a circuit breaker
US6476337B2 (en) 2001-02-26 2002-11-05 General Electric Company Auxiliary switch actuation arrangement
US6882258B2 (en) * 2001-02-27 2005-04-19 General Electric Company Mechanical bell alarm assembly for a circuit breaker
JP4689110B2 (en) * 2001-09-12 2011-05-25 寺崎電気産業株式会社 Multipole circuit breaker
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US6469882B1 (en) 2001-10-31 2002-10-22 General Electric Company Current transformer initial condition correction
US6804101B2 (en) 2001-11-06 2004-10-12 General Electric Company Digital rating plug for electronic trip unit in circuit breakers
DE102013212798A1 (en) * 2013-07-01 2015-01-08 Siemens Aktiengesellschaft Blocking element for an electrical switch
DE102019209747B3 (en) * 2019-07-03 2020-10-08 Ellenberger & Poensgen Gmbh Circuit breaker
US11749480B1 (en) * 2022-06-10 2023-09-05 Eaton Intelligent Power Limited Direct driven latch for ultra-fast switch

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3605052A (en) * 1970-01-22 1971-09-14 Gen Electric Avoidance of switching device false off handle indication
DE2508220A1 (en) * 1974-03-01 1975-09-04 Merlin Gerin ELECTRIC SELF-SWITCH WITH INDICATION OF A CONTACT WELD
US4165453A (en) * 1976-08-09 1979-08-21 Societe Anonyme Dite: Unelec Switch with device to interlock the switch control if the contacts stick

Family Cites Families (8)

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US2627564A (en) * 1949-11-18 1953-02-03 Gen Electric Electric circuit breaker
DE1087213B (en) * 1955-06-15 1960-08-18 Licentia Gmbh Electric toggle switch with pressure contacts for slow actuation
US3621189A (en) * 1970-08-26 1971-11-16 Cutler Hammer Inc Inkage contact operating mechanism for electric circuit breaker
FR2360171A1 (en) * 1976-07-30 1978-02-24 Unelec CIRCUIT BREAKER CONTROL MECHANISM
US4102686A (en) * 1977-02-25 1978-07-25 Polychrome Corporation Lithographic photosensitive compositions comprising acrylonitrile-butadiene-styrene terpolymer and novolak resin
US4165451A (en) * 1977-10-18 1979-08-21 Ruth Astor Note pad supports for desk telephones
DE2812320C2 (en) * 1978-03-17 1979-09-20 Siemens Ag, 1000 Berlin Und 8000 Muenchen Release for low voltage circuit breakers with a rotating release shaft
DE8023509U1 (en) * 1980-08-29 1980-11-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Low voltage circuit breaker for locking lever

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3605052A (en) * 1970-01-22 1971-09-14 Gen Electric Avoidance of switching device false off handle indication
DE2508220A1 (en) * 1974-03-01 1975-09-04 Merlin Gerin ELECTRIC SELF-SWITCH WITH INDICATION OF A CONTACT WELD
US4165453A (en) * 1976-08-09 1979-08-21 Societe Anonyme Dite: Unelec Switch with device to interlock the switch control if the contacts stick

Also Published As

Publication number Publication date
DE3033213A1 (en) 1982-03-11
EP0047221B1 (en) 1984-12-05
ATE10688T1 (en) 1984-12-15
EP0047221A2 (en) 1982-03-10
JPS5774932A (en) 1982-05-11
DE3033213C2 (en) 1982-10-21
JPS6253898B2 (en) 1987-11-12
US4392036A (en) 1983-07-05

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