EP1173864B1 - Circuit breaker with contact position indication - Google Patents

Circuit breaker with contact position indication Download PDF

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Publication number
EP1173864B1
EP1173864B1 EP00929302A EP00929302A EP1173864B1 EP 1173864 B1 EP1173864 B1 EP 1173864B1 EP 00929302 A EP00929302 A EP 00929302A EP 00929302 A EP00929302 A EP 00929302A EP 1173864 B1 EP1173864 B1 EP 1173864B1
Authority
EP
European Patent Office
Prior art keywords
switch
contact arm
position indicator
contact
switch position
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 - Lifetime
Application number
EP00929302A
Other languages
German (de)
French (fr)
Other versions
EP1173864A1 (en
Inventor
Elmar Fischer
Christoph Weber
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 EP1173864A1 publication Critical patent/EP1173864A1/en
Application granted granted Critical
Publication of EP1173864B1 publication Critical patent/EP1173864B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged
    • 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
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the invention relates to a circuit breaker, in particular a circuit breaker, with a pair of contacts from a fixed contact and from a movable contact on a contact arm, which interacts via a switch lock with switch position indicator with a rotatable manual control element according to the preamble of claim 1, for example known from US-A-5831500.
  • the switch position indicator works with a snap action mechanism to keep the contact arm open and suddenly release it into the closed position.
  • Such a circuit breaker is known (according to ⁇ 3, paragraph 2, DPatG or according to Art. 54, paragraph 3, EPC) (DE: 19735415.7; EP: 98114564.2).
  • Switch position indicators are generally known, in which the material of the indicator represents one color and the second color is printed. Two-part switch position indicators with different colors are also known. Such switch position indicators are usually special designs for tapping the position of a movable contact.
  • the invention has for its object to develop a circuit breaker with a particularly economical switch position indicator that gives an appropriate display for all possible switch positions.
  • the described task is solved by a circuit breaker according to claim 1.
  • the switch position indicator is designed here in two parts: on the one hand it has a switch position indicator for the closed position of the contact arm, the switch position indicator being connected to the snap action switch. It also has a switch position indicator for the open position of the contact arm, this switch position indicator for the movement of the contact arm taps. Both switch position indicators are arranged or designed so that they can pivot independently of each other. Such a switch position indicator also correctly shows in the case of a so-called free trip. Free tripping is known to mean that when the manual control element is held in the switch-on position, the switching lock causes the contact to open when the triggering condition occurs.
  • the switch position indicator for the closed position which is connected to the snap switch, is designed in such a way that a rigid part is operatively connected to a control edge of the manual control element and is rotatable about a fixed axis.
  • a display element is arranged under a viewing window. It has a joint to the snap-action switching part. Apart from the display element, the other components are required for the spring switch anyway.
  • the hinge to the snap-action switching part can advantageously be designed as a film gate hinge.
  • the switch position indicator for the open position has a rigid part which is mounted on the stationary axis of the switch position indicator for the closed position. Under the viewing window, this switch position indicator has a display element, the movement path of which lies below the viewing window over that of the display element for the closed position, the rigid part being connected via a joint to a bracket for tapping the movement of the contact arm.
  • the bracket can be tapped the movement of the contact arm in a switch lock with a pawl, release lever and contact arm approximately in a triangular arrangement, a connection between the bearing of the pawl and contact arm on the one hand and a stationary bearing of the release lever on the other.
  • This bracket can be in operative connection with the joint to the rigid part.
  • the rotatable manual control element can be connected to the contact arm by a coupling rod with the pawl outside its bearing.
  • the circuit breaker has a switching mechanism with a pair of contacts from a fixed contact 1 and from a movable contact 2 on a contact arm 3, which cooperates with a rotatable manual control element 7 via a switching mechanism 4 with a switching position indicator.
  • the switch position indicator is made in two parts.
  • the switch position indicator 5 for the closed position of the contact arm 3 is connected to a snap action switch 8 with snap action part 27.
  • the Switch position indicator 6 for the open position of the contact arm 3 picks up the movement of the contact arm.
  • the switch position indicator 6 for the open position has a rigid part 9, which is mounted on the fixed axis 10 of the switch position indicator 5 for the closed position.
  • the switch position indicator 6 Under a viewing window 11, the switch position indicator 6 has a display element 26 for the open position. Its path of movement under the viewing window 11 is above that of the display member 25 for the closed position.
  • the rigid part 9 of the switch position indicator for the open position is connected via a joint 13 to a bracket 14 for tapping the movement of the contact arm 3.
  • the switch position indicator 5 for the closed position is connected to the snap-action switching mechanism 8, a rigid part 15 being operatively connected to a control edge 16 of the manual control element 7.
  • the rigid part 15 is rotatable about a fixed axis 10, about which the rigid part 9 of the switch position indicator 6 is arranged for the open position.
  • a display member 26 is arranged under the viewing window 11 in a movement path.
  • a hinge 17 is formed for the jump switching part 27.
  • the display element 26 of the switch position indicator 6 can be made of green plastic, for example, and the display element 25 for the switch position indicator 5 for the closed position can be made of red plastic. A special impression or coloring is omitted, which promotes large-scale production.
  • the bracket 14 for tapping the movement of the contact arm 3 in a switching lock with pawl 18, release lever 19 and contact arm 3 in approximately triangular arrangement can be made from a connection between the bearing 20 of the pawl 18 and the contact arm on the one hand and a stationary bearing 21 of the release lever 19 on the other his.
  • the bracket 14 is in operative connection with the joint 13 to the rigid part 9.
  • the triangle arrangement is can be seen more precisely in the arrangement of the movable bearing 20 of the pawl, the fixed bearing 21 of the release lever and the movable bearing 12 of the pawl with a coupling rod to the manual control element 7.
  • the rotatable manual control element 7 thus connects a coupling rod 22 to the pawl 18 outside of its bearing 20 with the contact arm 3.
  • FIG. 3 Essential components of the switching mechanism according to FIGS. 1 and 2 are shown in FIG. 3 for themselves, so that the arrangement according to FIGS. 1 and 2 is easier to read.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)

Abstract

The invention relates to a circuit breaker, especially an automatic cutout, with a pair of contacts (1, 2) that consists of a stationary contact (1) and a movable contact (2) that are mounted on a contact arm (3). Said contact arm interacts with a rotary manual command organ (7) via a switch latch (4) with contact position indicator. Said contact position indicator interacts with a snap switch (8) for keeping open the contact arm and for suddenly releasing it into the closed position. The inventive contact position indicator is configured as a two-part device and comprises: a contact position indicator (5) for the closed position of the contact arm (3), said contact position indicator (5) being linked with a snap switch mechanism (8); a contact position indicator (6) for the open position of the contact arm (3), said contact position indicator detecting the displacement of the contact arm (3). Both contact position indicators (5, 6) are located or configured in such a manner that they can swivel independently of each other.

Description

Die Erfindung bezieht sich auf einen Schutzschalter, insbesondere einen Leitungsschutzschalter, mit einem Kontaktpaar aus einem feststehenden Kontakt und aus einem beweglichen Kontakt an einem Kontaktarm, der über ein Schaltschloß mit Schaltstellungsanzeiger mit einem drehbeweglichen Handbedienungsorgan zusammenwirkt gemäß dem Oberbegriff des Anspruchs 1, wie zum Beispiel aus der US-A-5831500 bekannt. Der Schaltstellunganzeiger arbeitet mit einem Sprungschaltwerk zur Offenhaltung des Kontaktarms und plötzlichen Freigabe in die Schließ-Stellung zusammenarbeitet. Ein derartiger Schutzschalter ist (nach § 3, Abs. 2, DPatG bzw. nach Art. 54, Abs. 3, EPÜ) bekannt (DE: 19735415.7; EP: 98114564.2).The invention relates to a circuit breaker, in particular a circuit breaker, with a pair of contacts from a fixed contact and from a movable contact on a contact arm, which interacts via a switch lock with switch position indicator with a rotatable manual control element according to the preamble of claim 1, for example known from US-A-5831500. The switch position indicator works with a snap action mechanism to keep the contact arm open and suddenly release it into the closed position. Such a circuit breaker is known (according to § 3, paragraph 2, DPatG or according to Art. 54, paragraph 3, EPC) (DE: 19735415.7; EP: 98114564.2).

Allgemein sind Schaltstellungsanzeiger bekannt, bei denen der Werkstoff des Anzeigers eine Farbe darstellt und die zweite Farbe aufgedruckt wird. Es sind auch zweiteilige Schaltstellungsanzeiger bei unterschiedlicher Farbe bekannt. Derartige Schaltstellungsanzeiger sind in der Regel Sonderkonstruktionen zum Abgreifen der Stellung eines beweglichen Kontaktes.Switch position indicators are generally known, in which the material of the indicator represents one color and the second color is printed. Two-part switch position indicators with different colors are also known. Such switch position indicators are usually special designs for tapping the position of a movable contact.

Der Erfindung liegt die Aufgabe zugrunde, einen Schutzschalter mit besonders wirtschaftlicher Schaltstellungsanzeige zu entwickeln, die für sämtliche mögliche Schaltstellungen eine zutreffende Anzeige gibt.The invention has for its object to develop a circuit breaker with a particularly economical switch position indicator that gives an appropriate display for all possible switch positions.

Die Lösung der geschilderten Aufgabe erfolgt durch einen Schutzschalter nach Anspruch 1. Der Schaltstellungsanzeiger ist hierbei zweiteilig ausgeführt: Er weist einerseits einen Schaltstellungsanzeiger für die Schließ-Stellung des Kontaktarms auf, wobei der Schaltstellungsanzeiger mit dem Sprungschaltwerk in Verbindung steht. Er weist weiter einen Schaltstellungsanzeiger für die Offen-Stellung des Kontaktarms auf, wobei dieser Schaltstellungsanzeiger die Bewegung des Kontaktarms abgreift. Beide Schaltstellungsanzeiger sind so angeordnet bzw. ausgebildet, daß sie voneinander unabhängig verschwenken können. Ein solcher Schaltstellungsanzeiger zeigt auch im Fall einer sogenannten Freiauslösung zutreffend an. Unter Freiauslösung wird bekanntlich verstanden, daß bei festgehaltenem Handbedienorgan in der Einschaltstellung das Schaltschloß bei auftretender Auslösebedingung die Kontaktöffnung bewirkt. Außerdem verwendet man ein ohnehin vorhandenes Bauteil für eine Sprungeinschaltung, wobei ein Sprungschaltteil zwischen dem Kontaktpaar über eine Kante zurückgezogen wird, worauf ein sprunghaftes Schließen erfolgt. Man kommt mit einem weiteren Schaltstellungsanzeiger und dem Abgreifen des beweglichen Kontaktarms für die Offen-Stellung aus.The described task is solved by a circuit breaker according to claim 1. The switch position indicator is designed here in two parts: on the one hand it has a switch position indicator for the closed position of the contact arm, the switch position indicator being connected to the snap action switch. It also has a switch position indicator for the open position of the contact arm, this switch position indicator for the movement of the contact arm taps. Both switch position indicators are arranged or designed so that they can pivot independently of each other. Such a switch position indicator also correctly shows in the case of a so-called free trip. Free tripping is known to mean that when the manual control element is held in the switch-on position, the switching lock causes the contact to open when the triggering condition occurs. In addition, an already existing component is used for a snap-on switch, with a snap-switch part being pulled back over an edge between the contact pair, whereupon an abrupt closing occurs. You get by with another switch position indicator and tapping the movable contact arm for the open position.

Nach einer Weiterbildung ist der Schaltstellungsanzeiger für die Schließ-Stellung, der mit dem Sprungschaltwerk in Verbindung steht, derart ausgebildet, daß ein starres Teil in Wirkverbindung zu einer Steuerkante des Handbedienorgans steht und um eine ortsfeste Achse drehbeweglich ist. Hierbei ist ein Anzeigeglied unter einem Sichtfenster angeordnet. Es weist ein Gelenk zum Sprungschaltteil auf. Abgesehen vom Anzeigeglied sind die übrigen Bauteile ohnehin für das Sprungschaltwerk erforderlich. Das Gelenk zum Sprungschaltteil kann vorteilhaft als Filmangußscharnier ausgebildet sein.According to a further development, the switch position indicator for the closed position, which is connected to the snap switch, is designed in such a way that a rigid part is operatively connected to a control edge of the manual control element and is rotatable about a fixed axis. Here, a display element is arranged under a viewing window. It has a joint to the snap-action switching part. Apart from the display element, the other components are required for the spring switch anyway. The hinge to the snap-action switching part can advantageously be designed as a film gate hinge.

Nach einer weiteren Weiterbildung weist der Schaltstellungsanzeiger für die Offen-Stellung ein starres Teil auf, das an der ortsfesten Achse des Schaltstellungsanzeigers für die Schließ-Stellung gelagert ist. Unter dem Sichtfenster weist dieser Schaltstellungsanzeiger ein Anzeigeglied auf, dessen Bewegungsbahn unter dem Sichtfenster über der des Anzeigegliedes für die Schließ-Stellung liegt, wobei das starre Teil über ein Gelenk mit einem Bügel zum Abgreifen der Bewegung des Kontaktarms in Verbindung steht. Man kommt so mit einer einfachen Kinematik für den Schaltstellungsanzeiger für die Offen-Stellung auf. Insbesondere kann der Bügel zum Abgreifen der Bewegung des Kontaktarms bei einem Schaltschloß mit Klinke, Auslösehebel und Kontaktarm in etwa in Dreiecksanordnung eine Verbindung zwischen dem Lager von Klinke und Kontaktarm einerseits und einem ortsfesten Lager des Auslösehebels andererseits sein. Dieser Bügel kann mit dem Gelenk zum starren Teil in Wirkverbindung stehen.According to a further development, the switch position indicator for the open position has a rigid part which is mounted on the stationary axis of the switch position indicator for the closed position. Under the viewing window, this switch position indicator has a display element, the movement path of which lies below the viewing window over that of the display element for the closed position, the rigid part being connected via a joint to a bracket for tapping the movement of the contact arm. One comes up with a simple kinematics for the switch position indicator for the open position. In particular, the bracket can be tapped the movement of the contact arm in a switch lock with a pawl, release lever and contact arm approximately in a triangular arrangement, a connection between the bearing of the pawl and contact arm on the one hand and a stationary bearing of the release lever on the other. This bracket can be in operative connection with the joint to the rigid part.

Das drehbewegliche Handbedienorgan kann durch eine Koppelstange mit der Klinke außerhalb ihres Lagers mit dem Kontaktarm verbunden sein.The rotatable manual control element can be connected to the contact arm by a coupling rod with the pawl outside its bearing.

Die Erfindung soll nun anhand eines in der Zeichnung schematisch wiedergegebenen Ausführungsbeispiels näher erläutert werden:

  • In FIG 1 ist der Schaltmechanismus des Schutzschalters in der Einschaltstellung des Kontaktpaares und somit des Schutzschalters wiedergegeben.
  • In FIG 2 ist der Schaltmechanismus des Schutzschalters in Ausschalt-Stellung veranschaulicht.
  • In FIG 3 sind die wesentlichen Bauteile des Schaltmechanismus aus der Darstellung nach den FIG 1 und 2 nach Art einer Explosionsdarstellung wiedergegeben, wobei der Übersichtlichkeit wegen übliche Kontaktfedern und federnde Kinematik weggelassen sind.
The invention will now be explained in more detail with reference to an exemplary embodiment shown schematically in the drawing:
  • In Figure 1, the switching mechanism of the circuit breaker is shown in the switched-on position of the contact pair and thus the circuit breaker.
  • 2 shows the switching mechanism of the circuit breaker in the off position.
  • 3 shows the essential components of the switching mechanism from the illustration according to FIGS. 1 and 2 in the manner of an exploded illustration, the clarity being omitted because of the usual contact springs and resilient kinematics.

Der Schutzschalter weist im Ausführungsbeispiel nach FIG 1 einen Schaltmechanismus auf mit einem Kontaktpaar aus einem feststehenden Kontakt 1 und aus einem beweglichen Kontakt 2 an einem Kontaktarm 3, der über ein Schaltschloß 4 mit Schaltstellungsanzeiger mit einem drehbeweglichen Handbedienorgan 7 zusammenarbeitet. Der Schaltstellungsanzeiger ist zweiteilig ausgeführt. Der Schaltstellungsanzeiger 5 für die Schließ-Stellung des Kontaktarms 3 steht mit einem Sprungschaltwerk 8 mit Sprungschaltteil 27 in Verbindung. Der Schaltstellungsanzeiger 6 für die Offen-Stellung des Kontaktarms 3 greift die Bewegung des Kontaktarms ab. Hierzu weist der Schaltstellungsanzeiger 6 für die Offen-Stellung ein starres Teil 9 auf, das an der ortsfesten Achse 10 des Schaltstellungsanzeigers 5 für die Schließ-Stellung gelagert ist. Unter einem Sichtfenster 11 weist der Schaltstellungsanzeiger 6 für die Offen-Stellung ein Anzeigeglied 26 auf. Seine Bewegungsbahn unter dem Sichtfenster 11 liegt über dem des Anzeigeglieds 25 für die Schließ-Stellung. Das starre Teil 9 des Schaltstellungsanzeigers für die Offen-Stellung steht über ein Gelenk 13 mit einem Bügel 14 zum Abgreifen der Bewegung des Kontaktarms 3 in Verbindung.In the exemplary embodiment according to FIG. 1, the circuit breaker has a switching mechanism with a pair of contacts from a fixed contact 1 and from a movable contact 2 on a contact arm 3, which cooperates with a rotatable manual control element 7 via a switching mechanism 4 with a switching position indicator. The switch position indicator is made in two parts. The switch position indicator 5 for the closed position of the contact arm 3 is connected to a snap action switch 8 with snap action part 27. The Switch position indicator 6 for the open position of the contact arm 3 picks up the movement of the contact arm. For this purpose, the switch position indicator 6 for the open position has a rigid part 9, which is mounted on the fixed axis 10 of the switch position indicator 5 for the closed position. Under a viewing window 11, the switch position indicator 6 has a display element 26 for the open position. Its path of movement under the viewing window 11 is above that of the display member 25 for the closed position. The rigid part 9 of the switch position indicator for the open position is connected via a joint 13 to a bracket 14 for tapping the movement of the contact arm 3.

Der Schaltstellungsanzeiger 5 für die Schließ-Stellung steht mit dem Sprungschaltwerk 8 in Verbindung, wobei ein starres Teil 15 in Wirkverbindung zu einer Steuerkante 16 des Handbedienorgans 7 steht. Das starre Teil 15 ist um eine ortsfeste Achse 10 drehbeweglich, um die auch das starre Teil 9 des Schaltstellungsanzeigers 6 für die Offen-Stellung angeordnet ist. Ein Anzeigeglied 26 ist unter dem Sichtfenster 11 in einer Bewegungsbahn angeordnet. Zum Sprungschaltteil 27 ist ein Gelenk 17 ausgebildet.The switch position indicator 5 for the closed position is connected to the snap-action switching mechanism 8, a rigid part 15 being operatively connected to a control edge 16 of the manual control element 7. The rigid part 15 is rotatable about a fixed axis 10, about which the rigid part 9 of the switch position indicator 6 is arranged for the open position. A display member 26 is arranged under the viewing window 11 in a movement path. A hinge 17 is formed for the jump switching part 27.

Das Anzeigeglied 26 des Schaltstellungsanzeigers 6 kann beispielsweise aus grünem Kunststoff bestehen und das Anzeigeglied 25 für den Schaltstellungsanzeiger 5 für die Schließ-Stellung aus rotem Kunststoff gefertigt sein. Ein besonderes Eindrucken oder Einfärben entfällt dadurch, was eine großtechnische Fertigung fördert.The display element 26 of the switch position indicator 6 can be made of green plastic, for example, and the display element 25 for the switch position indicator 5 for the closed position can be made of red plastic. A special impression or coloring is omitted, which promotes large-scale production.

Der Bügel 14 zum Abgreifen der Bewegung des Kontaktarms 3 bei einem Schaltschloß mit Klinke 18, Auslösehebel 19 und Kontaktarm 3 in etwa in Dreiecksanordnung kann aus einer Verbindung zwischen dem Lager 20 der Klinke 18 und des Kontaktarms einerseits und einem ortsfesten Lager 21 des Auslösehebels 19 andererseits sein. Der Bügel 14 steht mit dem Gelenk 13 zum starren Teil 9 in Wirkverbindung. Die Dreiecksanordnung ist genauer in der Anordnung vom ortsveränderlichen Lager 20 der Klinke, ortsfestem Lager 21 des Auslösehebels und ortsveränderlichem Lager 12 der Klinke mit einer Koppelstange zum Handbedienorgan 7 zu ersehen.The bracket 14 for tapping the movement of the contact arm 3 in a switching lock with pawl 18, release lever 19 and contact arm 3 in approximately triangular arrangement can be made from a connection between the bearing 20 of the pawl 18 and the contact arm on the one hand and a stationary bearing 21 of the release lever 19 on the other his. The bracket 14 is in operative connection with the joint 13 to the rigid part 9. The triangle arrangement is can be seen more precisely in the arrangement of the movable bearing 20 of the pawl, the fixed bearing 21 of the release lever and the movable bearing 12 of the pawl with a coupling rod to the manual control element 7.

Das drehbewegliche Handbedienorgan 7 verbindet also eine Koppelstange 22 mit der Klinke 18 außerhalb ihres Lagers 20 mit dem Kontaktarm 3.The rotatable manual control element 7 thus connects a coupling rod 22 to the pawl 18 outside of its bearing 20 with the contact arm 3.

Wesentliche Bauteile des Schaltmechanismus nach den FIG 1 und 2 sind in FIG 3 für sich wiedergegeben, so daß die Anordnung nach FIG 1 und nach FIG 2 leichter zu lesen ist.Essential components of the switching mechanism according to FIGS. 1 and 2 are shown in FIG. 3 for themselves, so that the arrangement according to FIGS. 1 and 2 is easier to read.

Claims (6)

  1. A protective switch, in particular circuit breaker, having a contact pair (1,2) comprising a stationary contact (1) and a moving contact (2) on a contact arm (3) which interacts via a switching mechanism (4) with a switch position indicator having a manual operating element (7) which can be rotated, with the switch position indicator interacting with a snap-action switching part (8) in order to keep the contact arm open and to release it suddenly to the closed position, characterized in that the switch position indicator is designed in two parts:
    having a switch position indicator (5) for the closed position of contact arm (3), with this switch position indicator (5) being connected to the snap-action switching mechanism (8) and having a switch position indicator (6) for the open position of the contact arm (3), with this switch position indicator tapping off the movement of the contact arm (3), and with both switch position indicators (5, 6) being arranged and designed such that they can pivot independently of one another.
  2. The protective switch as claimed in claim 1, characterized in that the switch position indicator (5) for the closed position, which is connected to the snap-action switching mechanism (8), is designed such that a rigid part (15) is operatively connected to a control edge (16) of the manual operating element (7) and can be rotated about a fixed-position shaft (10), having an indicating element (26) under a viewing window (11) and forming a joint (17) to a snap-action switching part (27).
  3. The protective switch as claimed in claim 2, characterized in that the joint (17) in the snap-action switching mechanism (8) is in the form of a cast film hinge.
  4. The protective switch as claimed in claim 2, characterized in that the switch position indicator (6) for the open position has a rigid part (9) which is mounted on the fixed-position shaft (10) of the switch position indicators (5) for the closed position and has an indicating element (26) under the viewing window (11), the movement path of which indicating element (26) under the viewing window (11) is above that of the indicating element (25) for the closed position, with the rigid part (9) a joint (13) being connected to a bracket (14) for tapping off the movement of the contact arm (3).
  5. The protective switch as claimed in claim 4, characterized in that the bracket (14) for tapping off the movement of the contact arm (3) in the case of a switching mechanism (4) having a catch (18), a release lever (19) and a contact arm (3) in an approximately triangular arrangement forms a connection between the bearing (20) of the catch (18) and the contact arm (3) on the one hand and a fixed-position bearing (21) for the release lever (19) on the other hand and is operatively connected to the joint (13) to the rigid part (9).
  6. The protective switch as claimed in one of the foregoing claims, characterized in that the manual operating element (7), which can be rotated, is connected by a coupling clip (22) by means of the catch (18) outside its bearing (20) with the contact arm (3).
EP00929302A 1999-04-28 2000-04-17 Circuit breaker with contact position indication Expired - Lifetime EP1173864B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19919418A DE19919418A1 (en) 1999-04-28 1999-04-28 Circuit breaker with switch position indicator
DE19919418 1999-04-28
PCT/DE2000/001195 WO2000067273A1 (en) 1999-04-28 2000-04-17 Circuit breaker with contact position indication

Publications (2)

Publication Number Publication Date
EP1173864A1 EP1173864A1 (en) 2002-01-23
EP1173864B1 true EP1173864B1 (en) 2003-09-10

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Application Number Title Priority Date Filing Date
EP00929302A Expired - Lifetime EP1173864B1 (en) 1999-04-28 2000-04-17 Circuit breaker with contact position indication

Country Status (7)

Country Link
EP (1) EP1173864B1 (en)
AT (1) ATE249680T1 (en)
DE (2) DE19919418A1 (en)
ES (1) ES2207513T3 (en)
IL (1) IL145889A0 (en)
TR (1) TR200103109T2 (en)
WO (1) WO2000067273A1 (en)

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CN103797556B (en) 2011-11-21 2016-02-17 三菱电机株式会社 Switching device
US9876334B2 (en) 2014-01-03 2018-01-23 Electronic Theatre Controls, Inc. Breaker assembly with mating platform and well connection

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DE302144C (en) * 1917-03-23 1917-12-03 Paul Dr Meyer DISPLAY DEVICE FOR THE POSITION OF SELF-OFF SWITCHES WITH SLIP CLUTCH
DE3339398A1 (en) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg SELF-SWITCH WITH OPEN AND CLOSED CONTACT POSITION
JPS6412335U (en) * 1987-07-13 1989-01-23
FR2660794B1 (en) * 1990-04-09 1996-07-26 Merlin Gerin CONTROL MECHANISM OF AN ELECTRIC CIRCUIT BREAKER.
US5831500A (en) * 1996-08-23 1998-11-03 Square D Company Trip flag guide for a circuit breaker
DE19735415A1 (en) * 1997-08-14 1999-02-18 Siemens Ag Switching mechanism for a circuit breaker

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ES2207513T3 (en) 2004-06-01
ATE249680T1 (en) 2003-09-15
IL145889A0 (en) 2002-07-25
DE50003650D1 (en) 2003-10-16
EP1173864A1 (en) 2002-01-23
WO2000067273A1 (en) 2000-11-09
TR200103109T2 (en) 2002-04-22
DE19919418A1 (en) 2000-11-02

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