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EP0001058B1 - Fehlerstromschutzschalter - Google Patents

Fehlerstromschutzschalter Download PDF

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Publication number
EP0001058B1
EP0001058B1 EP78100678A EP78100678A EP0001058B1 EP 0001058 B1 EP0001058 B1 EP 0001058B1 EP 78100678 A EP78100678 A EP 78100678A EP 78100678 A EP78100678 A EP 78100678A EP 0001058 B1 EP0001058 B1 EP 0001058B1
Authority
EP
European Patent Office
Prior art keywords
switch
base
passage
whose
component
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
EP78100678A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0001058A1 (de
Inventor
Peter Flohr
Martin Staffen
Josef Baldauf
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
Publication of EP0001058A1 publication Critical patent/EP0001058A1/de
Application granted granted Critical
Publication of EP0001058B1 publication Critical patent/EP0001058B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents

Definitions

  • the invention relates to a residual current circuit breaker on whose base summation current transformers, triggers and switch lock are arranged and the base of switching contacts actuated by a switching drum. takes. Residual current circuit breakers of this type are known (FR-A-13 47 629).
  • Residual current circuit breakers have become increasingly compact and smaller over the years in order to accommodate them in distributors to save space. These efforts stand in the way, inter alia, that inevitable tolerances in plastic housings require elaborate measures to avoid gaps between the hand control lever and the housing that are larger than the safety regulations allow.
  • the invention has for its object to build a compact residual current circuit breaker low and still compensate for tolerances.
  • the solution to the problem is achieved by a switch with the features according to the characterizing part of claim 1.
  • the arrangement of the quenching plates under a connection terminal and by design as an assembly with the fixed contact simplifies production and saves space.
  • the tiltable lever is formed in two parts, so that a movement occurs in the manner of a knee joint.
  • the quenching plates are accommodated in a switch room that extends over the entire height of the housing. Terminals are laterally upstream of this control room on the extension level.
  • Such a residual current circuit breaker is relatively space-consuming and there is no contribution to avoiding the tolerances in compact residual current circuit breakers, as is the aim of the present invention.
  • the quenching plates can be arranged under the connection terminal approximately parallel to the base of the residual current circuit breaker, so that blown out hot gases do not endanger the area of the connection terminal or the mounting rail under the base of the residual current circuit breaker.
  • the connection terminals are to be accommodated behind thick walls which are particularly safe to insulate.
  • the switching contact pieces are each arranged on a lever supported in a tiltable manner, a reduction in the torque required to open the contacts with respect to the switching drum can be achieved. This allows the key switch to be kept weaker and smaller, thereby contributing to the compact design.
  • Another significant advantage of the residual current circuit breaker according to the invention is that a further penetration in the base of the residual current circuit breaker facilitates assembly and is securely closed by a specially designed sealing piece. At the same time, this sealing piece takes on the function of determining lines in an orderly manner. Short cable routes can be achieved.
  • a centering lug on the cover of the switch housing which engages between the bearing plates of the switch lock, ensures that only small permissible gaps can occur between the manual operating handle and the plastic housing, even with usual tolerances.
  • the cover of the housing can in particular have a trough with a passage for the manual actuating element of the switch lock in order to protect it against lateral influences.
  • the test button can be flat and square, which makes handling easier.
  • the 1 has movable switching contact pieces 1, which are each arranged on a contact lever 2.
  • the contact lever 2 based kippbe- 'movably on the base on the support wall 4 from.
  • the top contact 2 is acted upon by a spring 5, which is supported on the lever as a compression spring.
  • the switching contact piece 1 is arranged.
  • the stationary contact piece 6 is arranged on a running rail 7 opposite this.
  • the running rail is electrically connected on one side to a connecting terminal 8.
  • the running rail 7 goes into an external one Quenching plate or a baffle 9 of a stack of quenching plates 10 over.
  • Terminal 8, running rail 7 and stack of fire-extinguishing sheets 10 can be designed as an assembly.
  • the contact lever 2 shown and further contact levers for further poles are actuated by the shift drum 13, the imaginary axis of which is designated 14, by drivers 15.
  • the torque required for the contact opening is reduced by the support of the contact lever 2 with respect to the shift drum 13.
  • a passage to the base 3 is closed by a two-part sealing piece, one part 17 of which forms a U-shaped receptacle 18 in profile.
  • the part 20 forms a clamping shoulder 21 to the first part 17 of the sealing piece 16.
  • lines 22 can be clamped in an orderly manner.
  • a line connection between the lines 22 and 23 can be accommodated in the receptacle 18.
  • the lines can be clamped in the receptacle 18.
  • the line 23 is passed through the summation current transformer 24 and electrically connected to the other connection terminal 8a.
  • the trigger and the switching lock and parts of the test device are arranged perpendicular to the plane of the drawing. There is space for further components under the connection terminal 8a and the adjacent connection terminals.
  • a customary snap-in bracket is arranged for lining up on mounting rails.
  • the cover 25 forms a centering lug 26 which engages between the bearing plate 27 of the switching lock 28.
  • the switch lock 28 is only attached to its foot.
  • the switch lock 28 finds its end position by guiding the centering lug 26. This ensures that, despite the large tolerance for plastic parts, only small, defined gaps of permissible size are created between the manual actuating member 29 and the cover of the switch housing.
  • the cover hood 25 forms a trough 36 with the passage for the manual actuating element 29.
  • test button 30 can be made flat and square.
  • the terminals 8 and 8a are intended for connecting the center conductor and three phase conductors.
  • the second part of the two-part sealing piece 16, the part 20, is shown enlarged in FIG. 5 in the view corresponding to FIG. 1.
  • This part too, can be locked by means of locking feet 31, like the first part 17 of the sealing piece 16, after insertion in the base.
  • the locking feet 31 can be seen in Figure 7.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP78100678A 1977-09-02 1978-08-16 Fehlerstromschutzschalter Expired EP0001058B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2739632 1977-09-02
DE2739632A DE2739632C2 (de) 1977-09-02 1977-09-02 Fehlerstromschutzschalter

Publications (2)

Publication Number Publication Date
EP0001058A1 EP0001058A1 (de) 1979-03-21
EP0001058B1 true EP0001058B1 (de) 1981-01-07

Family

ID=6017983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100678A Expired EP0001058B1 (de) 1977-09-02 1978-08-16 Fehlerstromschutzschalter

Country Status (8)

Country Link
EP (1) EP0001058B1 (da)
JP (1) JPS5449571A (da)
AT (1) AT381185B (da)
DE (2) DE2739632C2 (da)
DK (1) DK144200C (da)
ES (1) ES473037A1 (da)
GR (1) GR71730B (da)
IT (1) IT1101054B (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915091C2 (de) * 1979-04-12 1981-07-30 Siemens AG, 1000 Berlin und 8000 München Fehlerstromschutzschalter
DE3446765A1 (de) * 1984-12-21 1986-07-10 Schupa Elektro GmbH + Co KG, 5885 Schalksmühle Kontaktsystem zur begrenzung der lichtbogenlaenge in einem fehlerstromschutzschalter
JP2685998B2 (ja) * 1991-06-25 1997-12-08 松下電工株式会社 漏電ブレーカー
ES2064837T3 (es) * 1991-09-02 1995-02-01 Siemens Ag Interruptor de proteccion de corriente de defecto.
DE4312760A1 (de) * 1993-04-20 1994-10-27 Lust Electronic Systeme Gmbh Klemme mit integrierter Srommessung
AT504608A1 (de) 2006-03-02 2008-06-15 Moeller Gebaeudeautomation Gmb Schaltgerät
FR2978885B1 (fr) 2011-08-05 2015-11-13 Valeo Equip Electr Moteur Connecteur, dispositif de redressement de courant muni d'un tel connecteur et machine electrique equipee d'un tel dispositif de redressement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1347629A (fr) * 1963-02-20 1963-12-27 Siemens Ag Disjoncteur de courant de défaut
US3440579A (en) * 1967-06-19 1969-04-22 Gen Electric Electric circuit breaker with overcurrent and ground fault protection
US3539867A (en) * 1968-08-26 1970-11-10 Federal Pacific Electric Co Ground-fault protection systems
US3789268A (en) * 1972-12-29 1974-01-29 Gen Electric Miniature circuit breaker with electronic tripping means

Also Published As

Publication number Publication date
DE2739632B1 (de) 1978-11-30
EP0001058A1 (de) 1979-03-21
IT7827142A0 (it) 1978-08-30
DK144200C (da) 1982-06-07
DK357178A (da) 1979-03-03
JPS5449571A (en) 1979-04-18
DK144200B (da) 1982-01-11
AT381185B (de) 1986-09-10
DE2860418D1 (en) 1981-02-26
GR71730B (da) 1983-06-22
IT1101054B (it) 1985-09-28
ATA614378A (de) 1986-01-15
ES473037A1 (es) 1979-04-01
DE2739632C2 (de) 1980-11-27

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