EP0715325A1 - Electrical and mechanical locking device for contactors - Google Patents

Electrical and mechanical locking device for contactors Download PDF

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Publication number
EP0715325A1
EP0715325A1 EP95402350A EP95402350A EP0715325A1 EP 0715325 A1 EP0715325 A1 EP 0715325A1 EP 95402350 A EP95402350 A EP 95402350A EP 95402350 A EP95402350 A EP 95402350A EP 0715325 A1 EP0715325 A1 EP 0715325A1
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EP
European Patent Office
Prior art keywords
housing
contactors
axes
cover
output connection
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
EP95402350A
Other languages
German (de)
French (fr)
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EP0715325B1 (en
Inventor
Fabrice Bianchi
Alain Portier
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ABB Control SA
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ABB Control SA
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Filing date
Publication date
Application filed by ABB Control SA filed Critical ABB Control SA
Publication of EP0715325A1 publication Critical patent/EP0715325A1/en
Application granted granted Critical
Publication of EP0715325B1 publication Critical patent/EP0715325B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/323—Latching movable parts mechanically for interlocking two or more relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/323—Latching movable parts mechanically for interlocking two or more relays
    • H01H2050/325—Combined electrical and mechanical interlocking, e.g. usually for auxiliary contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/005—Inversing contactors

Definitions

  • the present invention relates to an electrical and mechanical locking device for contactors.
  • a locking device associated with two contactors is used in electric motor controls, ensuring reverse gears, or star-delta starts, in order to prevent their simultaneous closing.
  • the electrical locking between two contactors consists in opening the supply circuit of the coil of the first contactor as soon as possible by the closing action of the second contactor and vice versa.
  • This system requires that the input-output terminals of the first opening contact are on the upper face of the locking device and that those of the second are located on the opposite face. This principle is particularly troublesome with regard to the simplicity of making interconnection cabling.
  • the object of the invention is to eliminate these drawbacks, and in particular to improve the techniques currently known, by simplifying the shapes of the component parts.
  • the subject of the invention is an electrical and mechanical locking device for contactors, intended to be placed between two contactors, comprising a flat housing and a cover, of substantially rectangular shape, two inlet connections and two outlet connections on the faces.
  • two switch devices each comprising a pair of fixed contacts connected respectively to an input connection and an output connection, and a movable contact actuated by a movable locking element controlled by the corresponding contactor by means of a socket movement, characterized in that the two input connections and one output connection are located on one side face of the housing while the other output connection is located on the opposite side face, and in that one of said switch devices is mounted, between an input connection and an output connection, on a current line extending eg perpendicular to the side faces of the housing.
  • a box 1 contains all the other elements constituting the device.
  • the housing is closed permanently by a cover 1 'by means of the housings 10 located on the housing 1 and pins 10' located on the cover and inserted by force.
  • the hooking function is ensured by fixed hooks 6 'located on the housing and the cover, as well as “mobile” hooks 6, designed in one piece, and mounted on two springs 9, 9 'ensuring the tightening action of the hooks 6.
  • the input terminals A ', B' located on the same side face are coupled by a mobile contact system 5 ', 5, to the output terminals: A for A', and B, for B '.
  • the output terminal A is located on the same side face as the input terminals A ', B' and the output terminal B is located on the opposite side face.
  • the output contacts A and B are identical manufacturing parts.
  • the movable contacts 5, 5 ', ensuring the cuts, are mounted in slides included in levers 2, 2'.
  • the contact holding pressure is provided by springs 8, 8 '.
  • Levers 2, 2 'of identical manufacture, ensuring the opening and closing of the contacts 5, 5' are rotatably mounted around a fixed axis 11, 11 'respectively, and driven in rotation by the power take-off axes 3 or 3 ′, of identical manufacture to axes 11, 11 ′ capable of being coupled to the movable assembly of contactors located on either side of the housing 1.
  • Each lever 2, 2 ' carries two axes of power take-off 3, 3' projecting from one side of the locking device.
  • the two visible axes 3, 3 ' are carried by the lever 2' and project from the side of the cover 1 ', while the two non-visible axes 3, 3' are carried by the lever 2 and protrude from the bottom side 1.
  • These axes 3, 3 ' are manually adjustable, that is to say that one of them can be removed manually from its housing to adapt the locking device to the contactor travel.
  • the electrical and mechanical locking device provides an arrangement of the connection terminals allowing the use of a single supply chute for simplified wiring.
  • the housing closure system is economical and reliable.
  • the modular drive axes allow locking mounting on contactors of different strokes.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The latching device includes a housing (1) which is closed by a cover (1') with studs (10') pressed into corresponding recesses (10). It is secured to the two contactors by means of fixed hooks (6') on the housing and cover, and movable hooks (6) designed in one piece and mounted on two springs (9,9'). The input terminals (A',B') on the same side face are connected to output terminals (A,B) on opposite faces by the moving contacts (5,5') which slide within identical levers (2,2') rotating about fixed axes (11,11').

Description

La présente invention concerne un dispositif de condamnation électrique et mécanique pour contacteurs.The present invention relates to an electrical and mechanical locking device for contactors.

Un dispositif de verrouillage associé à deux contacteurs est utilisé dans des commandes de moteurs électriques, assurant des inversions de marche, ou des démarrages étoile-triangle, afin d'en interdire une fermeture simultanée. La condamnation électrique entre deux contacteurs consiste à ouvrir le plus tôt possible le circuit d'alimentation de la bobine du premier contacteur par l'action de fermeture du second contacteur et vice-versa.A locking device associated with two contactors is used in electric motor controls, ensuring reverse gears, or star-delta starts, in order to prevent their simultaneous closing. The electrical locking between two contactors consists in opening the supply circuit of the coil of the first contactor as soon as possible by the closing action of the second contactor and vice versa.

Cependant, une commande électrique simultanée des deux appareils, des chocs pouvant agir sur les éléments supportant les contacts, ou une commande manuelle simultanée, peuvent engendrer accidentellement un court-circuit par fermeture des pôles de puissance des contacteurs.However, simultaneous electrical control of the two devices, shocks that can act on the elements supporting the contacts, or simultaneous manual control, can accidentally cause a short circuit by closing the power poles of the contactors.

Il est donc conseillé d'ajouter à ce dispositif un système de condamnation mécanique. Le mécanisme ainsi intégré dans le système est actionné par les deux contacteurs. Le premier contacteur fermé, agit donc sur le mécanisme afin d'interdire la fermeture du second contacteur et vice-versa.It is therefore advisable to add a mechanical locking system to this device. The mechanism thus integrated into the system is actuated by the two contactors. The first closed contactor therefore acts on the mechanism in order to prohibit the closing of the second contactor and vice versa.

Un tel système de condamnation à la fois électrique et mécanique, est décrit dans le brevet européen n° 0 495 502.Such a locking system, both electrical and mechanical, is described in European Patent No. 0 495 502.

Ce système impose que les bornes d'entrée-sortie du premier contact à ouverture soient sur la face supérieure du dispositif de condamnation et que celles du second soient situées sur la face opposée. Ce principe est particulièrement gênant en ce qui concerne la simplicité de réalisation des câblages d'interconnexion.This system requires that the input-output terminals of the first opening contact are on the upper face of the locking device and that those of the second are located on the opposite face. This principle is particularly troublesome with regard to the simplicity of making interconnection cabling.

Dans les brevets français n° 2.617.328 et 2.661.548 est présenté notamment un système de connexions ayant les bornes électriques d'entrée sur une face de l'appareil et les bornes de sortie sur la face opposée.In French patents No. 2,617,328 and 2,661,548 is presented in particular a connection system having the electrical input terminals on one side of the device and the output terminals on the opposite side.

L'invention a pour but de supprimer ces inconvénients, et notamment d'améliorer les techniques actuellement connues, par une simplification des formes des pièces constitutives.The object of the invention is to eliminate these drawbacks, and in particular to improve the techniques currently known, by simplifying the shapes of the component parts.

L'invention a pour objet un dispositif de condamnation électrique et mécanique pour contacteurs, destiné à être placé entre deux contacteurs, comportant un boîtier plat et un couvercle, de forme sensiblement rectangulaire, deux connexions d'entrée et deux connexions de sortie sur les faces latérales du boîtier, deux dispositifs interrupteurs comportant chacun une paire de contacts fixes reliés respectivement à une connexion d'entrée et une connexion de sortie, et un contact mobile actionné par un élément mobile de condamnation commandé par le contacteur correspondant au moyen d'une prise de mouvement, caractérisé en ce que les deux connexions d'entrée et une connexion de sortie sont situées sur une face latérale du boîtier tandis que l'autre connexion de sortie est située sur la face latérale opposée, et en ce que l'un desdits dispositifs interrupteurs est monté, entre une connexion d'entrée et une connexion de sortie, sur une ligne de courant s'étendant perpendiculairement aux faces latérales du boîtier.The subject of the invention is an electrical and mechanical locking device for contactors, intended to be placed between two contactors, comprising a flat housing and a cover, of substantially rectangular shape, two inlet connections and two outlet connections on the faces. side of the housing, two switch devices each comprising a pair of fixed contacts connected respectively to an input connection and an output connection, and a movable contact actuated by a movable locking element controlled by the corresponding contactor by means of a socket movement, characterized in that the two input connections and one output connection are located on one side face of the housing while the other output connection is located on the opposite side face, and in that one of said switch devices is mounted, between an input connection and an output connection, on a current line extending eg perpendicular to the side faces of the housing.

Selon d'autres caractéristiques de l'invention :

  • le boîtier et le couvercle sont assemblés par coopération de logements et de pions insérés à force ;
  • chaque élément mobile de condamnation est constitué par un levier portant une prise de mouvement constituée par deux axes d'entraînement par l'équipage mobile du contacteur correspondant,
  • les deux axes sont maintenus serrés, quelle que soit leur position, par une lame élastique ;
  • les axes sont modulables manuellement pour assurer le couplage mécanique des leviers aux éléments mobiles de contacteurs ayant des courses différentes.
According to other characteristics of the invention:
  • the housing and the cover are assembled by cooperation of housings and pins inserted by force;
  • each movable locking element is constituted by a lever carrying a power take-off constituted by two drive axes by the mobile assembly of the corresponding contactor,
  • the two axes are held tight, whatever their position, by an elastic blade;
  • the axes are manually adjustable to ensure the mechanical coupling of the levers to the moving elements of contactors having different strokes.

D'autres caractéristiques ressortent de la description qui suit faite avec référence aux dessins annexés représentant le dispositif de condamnation électrique et mécanique selon l'invention, réalisé sous forme d'un module inséré entre deux contacteurs :

  • Fig. 1, en position de repos, c'est-à-dire de veille,
  • Fig. 2, en position de travail, c'est-à-dire de verrouillage de l'un des contacteurs.
Other characteristics appear from the following description made with reference to the accompanying drawings showing the electrical and mechanical locking device according to the invention, produced in the form of a module inserted between two contactors:
  • Fig. 1, in the rest position, that is to say standby,
  • Fig. 2, in the working position, that is to say one of the contactors is locked.

Sur la Fig. 1, un boîtier 1 contient tous les autres éléments constituant le dispositif. Le boîtier est fermé définitivement par un couvercle 1' au moyen des logements 10 situés sur le boîtier 1 et de pions 10' situés sur le couvercle et insérés par force.In Fig. 1, a box 1 contains all the other elements constituting the device. The housing is closed permanently by a cover 1 'by means of the housings 10 located on the housing 1 and pins 10' located on the cover and inserted by force.

Pour le maintien de l'appareil sur les deux contacteurs, la fonction d'accrochage est assurée par des crochets fixes 6' situés sur le boîtier et le couvercle, ainsi que des crochets "mobiles" 6, conçus en une seule pièce, et montés sur deux ressorts 9, 9' assurant l'action de serrage des crochets 6.To hold the device on the two contactors, the hooking function is ensured by fixed hooks 6 'located on the housing and the cover, as well as "mobile" hooks 6, designed in one piece, and mounted on two springs 9, 9 'ensuring the tightening action of the hooks 6.

Les bornes d'entrée A', B' situées sur la même face latérale sont couplées par un système de contacts mobiles 5', 5,aux bornes de sorties : A pour A', et B, pour B'. La borne de sortie A est située sur la même face latérale que les bornes d'entrée A', B' et la borne de sortie B est située sur la face latérale opposée. Les contacts de sortie A et B sont des pièces de fabrication identiques.The input terminals A ', B' located on the same side face are coupled by a mobile contact system 5 ', 5, to the output terminals: A for A', and B, for B '. The output terminal A is located on the same side face as the input terminals A ', B' and the output terminal B is located on the opposite side face. The output contacts A and B are identical manufacturing parts.

Les contacts mobiles 5, 5', assurant les coupures, sont montés dans des glissières incluses dans des leviers 2, 2'. La pression de maintien des contacts est assurée par des ressorts 8, 8'.The movable contacts 5, 5 ', ensuring the cuts, are mounted in slides included in levers 2, 2'. The contact holding pressure is provided by springs 8, 8 '.

Les leviers 2, 2' de fabrication identique, assurant l'ouverture et la fermeture des contacts 5, 5' sont montés rotatifs autour d'un axe fixe 11, 11 ' respectivement, et entraînés en rotation par les axes de prise de mouvement 3 ou 3', de fabrication identique aux axes 11, 11' aptes à venir s'accoupler à l'équipage mobile des contacteurs situés de part et d'autre du boîtier 1.Levers 2, 2 'of identical manufacture, ensuring the opening and closing of the contacts 5, 5' are rotatably mounted around a fixed axis 11, 11 'respectively, and driven in rotation by the power take-off axes 3 or 3 ′, of identical manufacture to axes 11, 11 ′ capable of being coupled to the movable assembly of contactors located on either side of the housing 1.

Chaque levier 2, 2' porte deux axes de prise de mouvement 3, 3' faisant saillie d'un côté du dispositif de condamnation. Dans l'exemple représenté sur la Figure 1, les deux axes 3, 3' visibles sont portés par le levier 2' et font saillie du côté du couvercle 1', alors que les deux axes 3, 3' non visibles sont portés par le levier 2 et font saillie du côté du fond 1.Each lever 2, 2 'carries two axes of power take-off 3, 3' projecting from one side of the locking device. In the example shown in Figure 1, the two visible axes 3, 3 'are carried by the lever 2' and project from the side of the cover 1 ', while the two non-visible axes 3, 3' are carried by the lever 2 and protrude from the bottom side 1.

Ces axes 3, 3' sont modulables manuellement, c'est-à-dire que l'un d'entre eux peut être extrait manuellement de son logement pour adapter le dispositif de condamnation aux courses des contacteurs.These axes 3, 3 'are manually adjustable, that is to say that one of them can be removed manually from its housing to adapt the locking device to the contactor travel.

Sur chaque levier 2, 2' de fabrication identique, assurant l'ouverture et la fermeture des contacts 5, 5' sont montés dans leur logement respectif les axes 3, 3'. Ils sont maintenus légèrement serrés par l'action commune d'une lame en acier élastique 4, 4'. Le rappel des leviers 2, 2' est assuré par les ressorts 7, 7'.On each lever 2, 2 'of identical manufacture, ensuring the opening and closing of the contacts 5, 5' are mounted in their respective housing the axes 3, 3 '. They are held slightly tightened by the joint action of an elastic steel blade 4, 4 '. The levers 2, 2 'are returned by the springs 7, 7'.

Lorsque l'un des deux contacteurs extérieurs au boîtier 1 est commandé, par exemple le premier, il actionne l'axe d'entraînement 3, 3' correspondant par un mouvement vertical descendant (fig. 2). Il engendre l'entraînement en rotation du premier levier, en l'occurrence le levier 2, qui pivote sur l'axe 11.When one of the two contactors external to the housing 1 is controlled, for example the first, it actuates the drive axis 3, 3 ′ corresponding by a vertical downward movement (fig. 2). It generates the rotary drive of the first lever, in this case the lever 2, which pivots on the axis 11.

Ce pivotement a deux conséquences :

  • la première est d'ouvrir le contact 5, ce qui interdit l'alimentation de la bobine du deuxième contacteur;
  • la seconde est d'interdire mécaniquement le pivotement du deuxième levier 2' : l'extrémité du premier levier 2 vient en effet se placer sous l'extrémité du deuxième levier 2' et le maintient en position de repos.
This pivoting has two consequences:
  • the first is to open contact 5, which prohibits the supply of the coil of the second contactor;
  • the second is to mechanically prohibit the pivoting of the second lever 2 ': the end of the first lever 2 is in fact placed under the end of the second lever 2' and keeps it in the rest position.

Lorsque le premier contacteur n'est plus alimenté et qu'il revient à sa position de repos, il libère l'axe 3,3' correspondant. Le ressort 7 se détend alors et ramène le premier levier 2 à sa position de repos de la Fig. 1 en refermant le contact 5.When the first contactor is no longer supplied and it returns to its rest position, it releases the corresponding 3.3 ′ axis. The spring 7 then relaxes and returns the first lever 2 to its rest position in FIG. 1 by closing the contact 5.

Le dispositif de condamnation électrique et mécanique selon l'invention assure une disposition des bornes de connexion permettant l'utilisation d'une goulotte d'alimentation unique pour un câblage simplifié.The electrical and mechanical locking device according to the invention provides an arrangement of the connection terminals allowing the use of a single supply chute for simplified wiring.

Il fait intervenir des pièces identiques pour assurer plusieurs fonctions.It uses identical parts to perform several functions.

Le système de fermeture du boîtier est économique et fiable. Les axes d'entraînement modulables permettent un montage de verrouillage sur des contacteurs de courses différentes.The housing closure system is economical and reliable. The modular drive axes allow locking mounting on contactors of different strokes.

Claims (5)

Dispositif de condamnation électrique et mécanique pour contacteurs, destiné à être placé entre deux contacteurs, comportant un boîtier plat et un couvercle, de forme sensiblement rectangulaire, deux connexions d'entrée et deux connexions de sortie sur les faces latérales du boîtier, deux dispositifs interrupteurs comportant chacun une paire de contacts fixés reliés respectivement à une connexion d'entrée et une connexion de sortie, et un contact mobi,e actionné par un élément mobile de condamnation commandé par le contacteur correspondant au moyen d'une prise de mouvement, caractérisé en ce que les deux connexions d'entrée (A', B') et une connexion de sortie (A) sont situées sur une face latérale du boîtier (1) tandis que l'autre connexion de sortie (B) est située sur la face latérale opposée, et en ce que l'un (5) desdits dispositifs interrupteurs (5, 5') est monté, entre une connexion d'entrée (B') et une connexion de sortie (B), sur une ligne de courant s'étendant perpendiculairement aux faces latérales du boîtier.Electrical and mechanical locking device for contactors, intended to be placed between two contactors, comprising a flat housing and a cover, of substantially rectangular shape, two input connections and two output connections on the side faces of the housing, two switch devices each comprising a pair of fixed contacts connected respectively to an input connection and an output connection, and a movable contact actuated by a movable locking element controlled by the corresponding contactor by means of a power take-off, characterized in that the two input connections (A ', B') and one output connection (A) are located on a side face of the housing (1) while the other output connection (B) is located on the face opposite side, and in that one (5) of said switch devices (5, 5 ') is mounted, between an input connection (B') and an output connection (B), on a power line extending perpendicular to the side faces of the housing. Dispositif selon la revendication 1, caractérisé en ce que le boîtier et le couvercle sont assemblés par coopération de logements (10) et de pions (10') insérés à force.Device according to claim 1, characterized in that the housing and the cover are assembled by cooperation of housings (10) and pins (10 ') inserted by force. Dispositif selon la revendication 1, caractérisé en ce que chaque élément mobile de condamnation est constitué par un levier (2, 2') portant une prise de mouvement constituée par deux axes (3, 3') d'entraînement par l'équipage mobile du contacteur correspondant.Device according to claim 1, characterized in that each movable locking element is constituted by a lever (2, 2 ') carrying a power take-off constituted by two axes (3, 3') for driving by the mobile equipment of the corresponding contactor. Dispositif selon la revendication 3, caractérisé en ce que les deux axes (3, 3') sont maintenus serrés, quelle que soit leur position, par une lame élastique (4, 4').Device according to claim 3, characterized in that the two axes (3, 3 ') are held tight, whatever their position, by an elastic blade (4, 4'). Dispositif selon la revendication 3, caractérisé en ce que les axes (3, 3') sont modulables manuellement pour assurer le couplage mécanique des leviers (2, 2') aux éléments mobiles de contacteurs ayant des courses différentes.Device according to claim 3, characterized in that the axes (3, 3 ') are manually adjustable to ensure the mechanical coupling of the levers (2, 2') to the movable elements of contactors having different strokes.
EP19950402350 1994-11-28 1995-10-23 Electrical and mechanical locking device for contactors Expired - Lifetime EP0715325B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9414211 1994-11-28
FR9414211A FR2727566A1 (en) 1994-11-28 1994-11-28 ELECTRICAL AND MECHANICAL CONDEMNATION DEVICE FOR CONTACTORS

Publications (2)

Publication Number Publication Date
EP0715325A1 true EP0715325A1 (en) 1996-06-05
EP0715325B1 EP0715325B1 (en) 1999-02-17

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EP19950402350 Expired - Lifetime EP0715325B1 (en) 1994-11-28 1995-10-23 Electrical and mechanical locking device for contactors

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EP (1) EP0715325B1 (en)
DE (1) DE69507869T2 (en)
FR (1) FR2727566A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815171A1 (en) * 2000-10-11 2002-04-12 Abb Control Sa Double action vibration proof electrical motor command having rotating feed contact levers with closing sliding contacts and opening conductor strips free ends rest position contacting.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200415843Y1 (en) * 2006-02-16 2006-05-08 엘에스산전 주식회사 Auxiliary contact unit of magnatic contactor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985003382A1 (en) * 1984-01-23 1985-08-01 Allen-Bradley Company Combination mechanical and electrical interlock mechanism
DE8808041U1 (en) * 1987-06-26 1988-08-25 La Télémécanique Electrique, Nanterre Mechanical and electrical locking device for switches
FR2661548A1 (en) 1990-04-30 1991-10-31 Telemecanique LOCKING INVERTER CONTACTOR APPARATUS.
EP0495502A1 (en) 1991-01-17 1992-07-22 Fuji Electric Co., Ltd. Mutual locking device for electromagnetic contactors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985003382A1 (en) * 1984-01-23 1985-08-01 Allen-Bradley Company Combination mechanical and electrical interlock mechanism
DE8808041U1 (en) * 1987-06-26 1988-08-25 La Télémécanique Electrique, Nanterre Mechanical and electrical locking device for switches
FR2617328A1 (en) 1987-06-26 1988-12-30 Telemecanique Electrique MECHANICAL AND ELECTRICAL CONDEMNATION DEVICE FOR CONTACTORS
FR2661548A1 (en) 1990-04-30 1991-10-31 Telemecanique LOCKING INVERTER CONTACTOR APPARATUS.
EP0455534A1 (en) * 1990-04-30 1991-11-06 Schneider Electric Sa Phase-reversal contactor with locking device
EP0495502A1 (en) 1991-01-17 1992-07-22 Fuji Electric Co., Ltd. Mutual locking device for electromagnetic contactors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815171A1 (en) * 2000-10-11 2002-04-12 Abb Control Sa Double action vibration proof electrical motor command having rotating feed contact levers with closing sliding contacts and opening conductor strips free ends rest position contacting.
EP1197982A1 (en) * 2000-10-11 2002-04-17 Abb Control Electrical and mechanical locking device to be coupled to two contactors in order to prevent simultaneous closure

Also Published As

Publication number Publication date
EP0715325B1 (en) 1999-02-17
FR2727566B1 (en) 1997-02-14
DE69507869T2 (en) 2000-01-05
FR2727566A1 (en) 1996-05-31
DE69507869D1 (en) 1999-03-25

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