EP0696041A1 - Schutzschalter - Google Patents

Schutzschalter Download PDF

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Publication number
EP0696041A1
EP0696041A1 EP95401825A EP95401825A EP0696041A1 EP 0696041 A1 EP0696041 A1 EP 0696041A1 EP 95401825 A EP95401825 A EP 95401825A EP 95401825 A EP95401825 A EP 95401825A EP 0696041 A1 EP0696041 A1 EP 0696041A1
Authority
EP
European Patent Office
Prior art keywords
contact
circuit breaker
movable
breaker according
fixed axis
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
EP95401825A
Other languages
English (en)
French (fr)
Other versions
EP0696041B1 (de
Inventor
Guy Cottone
Jean-Pierre Lipari
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.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
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 Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0696041A1 publication Critical patent/EP0696041A1/de
Application granted granted Critical
Publication of EP0696041B1 publication Critical patent/EP0696041B1/de
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
    • H01H71/10—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
    • 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
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
    • H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
    • H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • 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
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • 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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition

Definitions

  • the present invention relates generally to circuit breakers, and it relates more particularly to those comprising, in a housing, a contact support, which is rotatably mounted about a fixed axis, that is to say of a fixed axis relative to the housing, a hooking piece, which is also rotatably mounted around this fixed axis, two movable contacts, one of phase, the other of neutral, which, each engaged respectively by a drilling on a coaxial cylindrical bearing surface of the fixed axis, are each respectively subjected to an elastic member urging them permanently in the direction of a bearing stop provided for this purpose on the contact support, an operating member, which is at the available to the user, and who, by means of a connecting rod assembly, and under the control of the attachment part, is capable of passing the contact support from a tripping position, for which the movable contacts are each respectively at distance d e fixed contacts, that is to say fixed contacts relative to the housing, in an engagement position for which, on the contrary, the movable contacts are in abut
  • They can, for example, be both phase and neutral circuit breakers and corresponding differential circuit breakers.
  • circuit breakers are preferably modular circuit breakers, that is to say circuit breakers whose casing is in the general form of a plate of given contour and of determined thickness and which can thus be arranged joined side by side on the same support.
  • the purpose of this arrangement is to allow the movable contacts to have, elastically, upon closing, the displacement capacity, or penetration, necessary for compensating for their possible wear.
  • the cylindrical bearing belonging in practice to the contact support it has as a consequence that the abutment provided for the movable contact on this contact support is formed by this same cylindrical bearing, on the side thereof diametrically opposite at the fulcrum of the associated elastic member.
  • the present invention generally relates to a provision which, while advantageously allowing identical mobile contacts to be used, jointly makes it possible to obtain in a very simple manner at closure a determined sequence of intervention between them , and which, in addition, leads to other advantages.
  • circuit breaker of the type concerned relates to a circuit breaker of the type concerned and generally characterized in that, jointly, on the one hand, the bore through which the movable contacts are each respectively engaged on coaxial cylindrical surfaces of the 'fixed axis has a circular contour complementary to that of these cylindrical bearings, and, on the other hand, the abutments provided on the contact support for these movable contacts are angularly offset relative to the corresponding fixed contacts.
  • the movable contacts only have a capacity of rotation relative to the cylindrical bearings on which they are engaged, and, on the other hand, the angular distances separating them from the fixed contacts being different, the closure of one necessarily intervenes before that of the other.
  • the fixed contacts are aligned with respect to each other along a plane parallel to the fixed axis, and the abutments for supporting the movable contacts on the contact support are angularly offset with respect to the other around this fixed axis.
  • the attachment part then comprises for this purpose two drive stops, which, each intended respectively to come to bear against the movable contacts upon opening, are angularly offset one by relative to each other around the fixed axis.
  • the intervention sequence sought for the movable contacts at closing is provided in a very simple manner by the contact support, while that sought at closing is provided in an equally simple manner by the part. hanging.
  • the functional areas to be provided for this purpose on the movable contacts are advantageously limited.
  • this circuit breaker comprises, in a housing 10, a contact support 11, which is rotatably mounted about an axis A1 fixed relative to the housing 10, a coupling part 12, which is it also rotatably mounted around this fixed axis A1, two movable contacts 13P, 13N, one of phase, the other of neutral, which, each engaged respectively by a bore 14 on a cylindrical bearing 15P, 15N coaxial fixed axis A1, are each respectively subjected to an elastic member 16P, 16N urging them permanently in the direction of a support stop 18P, 18N provided for this purpose on this contact support 11, an operating member 19, which is available to the user, and who, by means of a connecting rod assembly 20, and under the control of the attachment piece 12, is capable of passing the contact support 11 from a tripping position, Figure 2, for which the movable contacts 13P, 13N are each respectively remote ce of fixed contacts 21P, 21N by relative to the housing 10, in an engagement position, FIG.
  • the housing 10 is a modular housing.
  • It is generally formed by a base 10N and a cover 10P, with, acting substantially midway between them, for a separation of the phase and neutral stages each associated respectively with the movable phase and neutral contacts 13P, 13N, a 10M middle partition forming a spacer.
  • the base 10N extends on the side of the neutral stage, and the cover 10P on the side of the phase stage.
  • connection terminals not visible in the figures, to which, directly or indirectly, are electrically connected the movable phase and neutral contacts 13P, 13N on the one hand, and fixed phase contacts and neutral 21P, 21N, on the other hand.
  • the bore 14 by which the movable contacts 13P, 13N are engaged on cylindrical bearings 15P, 15N of the contact support 11 has a circular contour complementary to that of these cylindrical bearings 15P , 15N, and, on the other hand, the stops support 18P, 18N of these movable contacts 13P, 13N on this contact support 11 are angularly offset relative to the fixed contacts 21P, 21N.
  • the fixed axis A1 is shown in broken lines in FIGS. 3, 4 and 5 and is shown diagrammatically by its trace in FIGS. 2, 6, 8 and 10.
  • the fixed contacts 21P, 21N are aligned with each other along a plane P1 parallel to the fixed axis A1, Figure 6, and the support stops 18P, 18N provided on the support of contacts 11 for the movable contacts 13P, 13N are offset angularly with respect to each other by an angle B around the fixed axis A1, as shown diagrammatically in FIG. 6.
  • the support stop 18P of the movable contact 13P of phase is behind that 18N of the movable contact 13N of neutral in the direction of pivoting around the fixed axis A1 which, as shown schematically by the arrow F1 on the Figure 6, corresponds to the passage of these movable contacts 13P, 13N from their release position, or opening, to their engagement position, or closing.
  • the contact support 11 comprises, on the one hand, transversely to the fixed axis A1, an insulating wall 25, on either side of which extend the movable contacts 13P, 13N, and, on the other hand, along the fixed axis A1, two ends of the shaft 26P, 26N, which extend axially projecting back to back on either side of the insulation wall 25 , and on which are formed the cylindrical surfaces 15P, 15N suitable for the rotational engagement of the movable contacts 13P, 13N and of the attachment part 12.
  • the attachment part 12 is arranged on the same side of the insulation wall 25 of the contact support 11 as the movable phase contact 13P.
  • the shaft end 26P therefore forms, at its root, along a diameter slightly greater than that of the cylindrical bearing 15P, a cylindrical bearing 15'P specific to the engagement in rotation of the attachment piece 12.
  • the shaft ends 26P, 26N are hollow, for their engagement in rotation, one on a lug 28P, coming from the cover 10P of the housing 10, the other on a shaft 28N, coming from the base 10N of this housing 10.
  • the free ends of the lug 28P and of the shaft 28N are generally frustoconical.
  • this lug 28P and this shaft 28N materialize, in the embodiment shown, the fixed axis A1.
  • this fixed axis A1 could just as easily be formed for example by a piece independent of the housing 10.
  • the insulation wall 25 of the contact support 11 also has, projecting back to back, parallel to the fixed axis A1, two balusters 30P, 30N, on which are each respectively formed the support stops 18P, 18N of the movable contacts 13P, 13N.
  • the baluster 30P is of circular outline, and, at its base, it has, for reasons which will appear below, a section 31 of greater diameter.
  • the small column 30N it has a smaller diameter, is truncated by a flat which, parallel to the fixed axis A1, forms the support stop 18N at its end.
  • these elastic opening means 22, visible in FIG. 2 are constituted by a compression spring, which, bearing on a shoulder 35 of the housing 10, and, more precisely, on the base 10N thereof , bears on the arm 34, and, for centering and retaining this spring, this arm 34 projects a pin 36.
  • a spout 37 which, in practice, is generally curved around the fixed axis A1.
  • the insulating wall 25 of the contact support 11 has, projecting, on the same side as the baluster 30P, and between the latter and the shaft end 26P, parallel to the fixed axis A1, another column 38, the end of which is truncated by a chamfer 40, and which forms, transversely, that is to say generally perpendicular to the fixed axis A1, a notch 41P.
  • the baluster 30N forms, transversely, at its free end, and on the side opposite to the support stop 18N, a notch 41N, generally perpendicular to the fixed axis A1.
  • the attachment part 12 comprises, on the one hand, transversely with respect to the fixed axis A1, an insulation wall 43, by a circular bore 44 from which it is engaged in rotation on the cylindrical bearing 15'P provided for this purpose on the contact support 11 coaxially with the fixed axis A1, and on either side of which extend the movable contacts 13P, 13N, and, on the other hand, along generators parallel to the fixed axis A1, a protective wall 45 which, disposed beyond the movable contacts 13P, 13N relative to the fixed axis A1, extends on either side of the wall insulation 43.
  • the attachment part 12 is in axial abutment against the contact support 11, with its insulation wall 43, if not adjacent to the insulation wall 25 of this contact support 11, at least close to this wall insulation 25 and parallel thereto.
  • the protective wall 45 which is perpendicular to the insulation wall 43, extends only over a reduced angle-to-center, less than 180 °, relative to the fixed axis A1.
  • the attachment part 12 comprises two drive stops 46P, 46N which, each intended respectively to come to bear against the movable contacts 13P, 13N at the opening, are angularly offset one relative to each other by an angle C around of the fixed axis A1, as shown diagrammatically in FIG. 9.
  • these drive stops 46P, 46N are constituted by ribs, of different heights, which the hooking part 12 projects on its protective wall 45, parallel to the fixed axis A1, on the face of this protective wall 45 facing the fixed axis A1.
  • the drive stop 46P of the movable contact 13P of phase is in front of that 46N of the movable contact 13N of neutral in the direction of pivoting which, as shown diagrammatically by the arrow F2 in FIG. 9, corresponds to passage of these movable contacts 13P, 13N from their latching or closing position to their latching or opening position.
  • the rib constituting the drive stop 46P has a height greater than that of the rib constituting the drive stop 46N.
  • the attachment piece 12 is locally engaged under the spout 37 of the contact support 11 (not visible in the figures).
  • this protective wall 45 itself has, at the level of the insulation wall 43, a spout 48, for the action of a reset spring 49.
  • this reset spring 49 is a pin spring which, by a median torsion part 50, is engaged on a stud 51 secured to the housing 10, and, more precisely, the base 10N thereof, and one wing 52 of which bears on a lug 53 also integral with this housing 10, and, more precisely, the base 10N thereof, while its other wing 54 bears on the spout 48 of the attachment piece 12.
  • the attachment part 12 also has, as an extension of its insulation wall 43, along one of the edges of the protective wall 45, at the connection to the latter of the spout 48, another spout 56, which, by its edge, forms a ramp 57 and which has, at the end thereof, a notch 58.
  • triggering members 24A, 24B ... etc ... are provided.
  • the magnetic trip member 24A comprises, around a core 59 of axis A2 orthogonal to the fixed axis A1, a winding 60, and, mounted movably along the axis A2 of the core 59, a striker 61.
  • the axis A2 of this magnetic trip member 24A is shown in broken lines in FIG. 2, and it is shown diagrammatically by its trace in FIG. 4.
  • the thermal trigger member 24B is a bimetallic strip.
  • the insulation wall 43 of the attachment piece 12 extends for this purpose generally along a plane P2 which, perpendicular to the fixed axis A1, contains the axis A2 of the magnetic trip member 24A , figure 4.
  • the striker 61 of the magnetic trip member 24A is able to act on the edge of the insulation wall 43 of the attachment piece 12, away from the fixed axis A1.
  • the plane P2 is shown diagrammatically in broken lines by its trace in this figure 4.
  • the attachment piece 12 has a lug 62 which is interposed on the path capable of being swept by the free end of this thermal trigger member 24B.
  • this lug 62 protrudes parallel to the fixed axis A1 on an arm 63 extending substantially along its plane the insulation wall 43 of the attachment piece 12 or parallel to this insulation wall 43 while being slightly offset with respect to the latter.
  • two other triggering members 24C, 24D are provided, each formed by a finger which, coming from an auxiliary triggering device, s' extends parallel to the fixed axis A1, and which, therefore, is only present by its trace in Figure 8.
  • the auxiliary trigger device is for example a remote trigger device, not shown.
  • the attachment piece 12 comprises, projecting from its insulation wall 43, on at least one side thereof, an upright 65, which extends parallel to the fixed axis A1, and which, for the engagement of the corresponding finger, has a clearance 66.
  • the upright 65 is a stepped upright, this upright carrying transversely a flange 67 at its free end.
  • the auxiliary triggering device is for example a differential triggering device, also not shown.
  • the attachment piece 12 has, in hollow, on its protective wall 45, in the embodiment shown, on the side of this protective wall 45 opposite the fixed axis A1, a groove 68, which extends parallel to the fixed axis A1, and with which the finger forming this trigger member 24D can engage.
  • the movable contacts 13P, 13N are identical to each other, and the same is true of the elastic members 16P, 16N which are associated with them.
  • the movable contacts 13P, 13N are in practice each formed from a suitably cut metal blank, and possibly stamped.
  • the two arms 71, 72 are generally bent, with their respective end sections generally perpendicular to each other, the end section of the arm 72 being directed on the side opposite to the fixed contacts 21P, 21N.
  • the arm 71 On the side also opposite to these fixed contacts 21P, 21N, the arm 71 has, in its elbow, on its edge, for reasons which will appear below, a notch 73.
  • the fixed contacts 21P, 21N On the side, on the other hand, of the fixed contacts 21P, 21N, it has, projecting from its edge, and wider than the latter, a boss 74, in practice rounded, by which the movable contact 13P, 13N corresponding is able to bear against such a fixed contact 21P, 21N, and which, in the embodiment shown, extends symmetrically on one and the other of the faces of such a movable contact 21P, 21N.
  • the movable contacts 13P, 13N each have, between these arms 71, 72, an arm 75 to which is attached a metal braid 76, FIG. 2, for their insertion into the corresponding electrical circuits.
  • the elastic member 16P associated with the movable contact 13P of phase is, in the embodiment shown, a pin spring, of general U shape, of which, on the one hand, the two branches 77 each extend respectively on either side of such a movable contact 13P, 13N, with a median torsion portion 78 engaged coaxially on the corresponding cylindrical bearing 15P, 15N of the contact support 11 and a free end 79 bearing on a shoulder 80P, 80N thereof, and of which, on the other hand, the middle part 81 bears on the edge of this movable contact 13P, 13N, in favor of the notch 73 of his arm 71.
  • the shoulders 80P, 80N presented by the contact support 11 for the elastic members 16P, 16N are formed by its balusters 30P, 30N, on the side of the latter opposite the support stops 18P, 18N.
  • one of the branches 77 of the pin spring forming the elastic member 16P is engaged, by its free end 79, with the notch 41P of the baluster 38.
  • branches 77 which is the most internal, that is to say that which is closest to the insulation wall 25 of the contact support 11.
  • the attachment part 12 being inserted between the contact support 11 and the movable phase contact 13P, the axial retention of the latter also ensures the axial retention of this attachment piece 12.
  • one of the branches 77 of the spring in pin forming the elastic member 16N is engaged, by its free end 79, with the notch 41N of the baluster 30N, or, at least, is located below this notch 41N relative to the insulation wall 25 of the contact support 11.
  • the operating member 19 is rotatably mounted about an axis A3 which, fixed relative to the housing 10, is parallel to the fixed axis A1.
  • a return spring 82 in practice a torsion spring, which urges it permanently in the direction of its release position.
  • the connecting rod 20 by means of which this operating member 19 is able to act on the contact support 11 comprises, on the one hand, a connecting rod 83, which, at one of its ends, and along an axis A4 parallel to the fixed axis A1, is articulated to the operating member 19, this operating member 19 having for this purpose an ear 84, and, on the other hand, a pawl 85, to which the connecting rod 83 is articulated at the other of its ends, along an axis A5 parallel to the fixed axis A1, this pawl 85 having for this purpose a first ear 86, and which, by a second ear 87, is itself even pivotally mounted on the contact support 11, along an axis A6 parallel to the fixed axis A1, while being engaged in rotation on the section 31 of greater diameter which the baluster 30P thereof has at its base.
  • the pawl 85 has a spout 89 on which the hooking piece 12 can be hooked by its notch 58.
  • the assembly can be carried out as follows.
  • the elastic member 16N is engaged laterally on the movable neutral contact 13N, along arrow F3 in FIG. 1, and this movable contact 13N is engaged, with its elastic member 16N, on the end of the shaft 26N of the contact support 11, along the arrow F4 in FIG. 1, by ensuring that the branches 77 of the pin spring constituting the elastic member 16P come to bear by their free end 79 on the shoulder 80N formed for them by the baluster 30N of the contact support 11.
  • the movable neutral contact 13N then comes to carry by its arm 72 on the support stop 18N of the contact support 11.
  • the contact support 11 then forms with the movable neutral contact 13N and the elastic member 16N which is associated with it a unitary sub-assembly, that is to say captive.
  • the operating member 19 is put in place, with its return spring 82, then the spring constituting the elastic opening means 22.
  • the movable phase contact 13P comes to carry by its arm 72 on the support stop 18P contact support 11.
  • the contact support 11 forms with the movable neutral contact 13N, the elastic member 16N associated therewith, the hooking piece 12, the movable phase contact 13P and the elastic member 16P associated with it, a unitary sub-assembly 90, that is to say a captive sub-assembly, which is shown in isolation in FIGS. 3 and 4, and to which also in practice the pawl 85, the retainer axial of this pawl 85 being provided by the movable contact 13P phase.
  • a unitary sub-assembly 90 that is to say a captive sub-assembly, which is shown in isolation in FIGS. 3 and 4, and to which also in practice the pawl 85, the retainer axial of this pawl 85 being provided by the movable contact 13P phase.
  • the attachment part 12 carries by its ramp 57 against the spout 89 of the pawl 85, as shown in FIG. 2.
  • the operating member 19 drives the pawl 85 in the opposite direction to it, which causes the latter to rotate on the baluster 30P of the contact support 11, about the axis A6, along arrow F7 in FIG. 7A.
  • the spout 89 of the pawl 85 follows the ramp 57 of the attachment piece 12, until it engages with the notch 58 thereof.
  • the contact support 11 By its beak 37, under which the protective wall 45 of the attachment piece 12 is slid, the contact support 11 is itself rotated, by this attachment piece 12, about the axis fixed A1, along arrow F8 of Figure 2, and with it, the movable contacts 13P, 13N that it carries.
  • the movable neutral contact 13N is the first to bear against the associated fixed contact 21N, as shown in FIG. 7B.
  • This alignment corresponds to a crossing of neutral point beyond which, by effect of a toggle joint, that is to say by bracing effect, the axis A4 intermediate between the axes A3 and A5 having exceeded the line connecting to each other these, the operating member 19 is itself locked, disengageably, in the engaged position; it then maintains the movable contacts 13P, 13N in the closed position, with, for these, the contact pressure due to the elastic members 16P, 16N.
  • these elastic members 16P, 16N act on the movable contacts 13P, 13N at a point thereof relatively close to the boss 74 by which they bear on the fixed contacts 21P, 21N, which is advantageously favorable to their effectiveness.
  • This attachment piece 12 therefore benefits from an angular zone of freedom around the fixed axis A1 in which it is not subjected to this reset spring 49.
  • the attachment piece 12 acts first on the movable contact 13P of phase, then on the contact mobile 13N neutral, thus ensuring the opening sequence sought for them.
  • the attachment piece 12 is again urged by the reset spring 49, and the latter therefore ensures its return to the reset position for which, as shown in FIG. 2, it is supported by its ramp 57 on the spout 89 of the pawl 85, and, therefore, for which a new engagement is possible.
  • a triggering process of the same type as the previous one takes place if, instead of the magnetic triggering member 24A, it is the thermal triggering member 24B which intervenes.
  • a triggering process similar to that described also takes place in the event of intervention by one or other of the triggering members 24C, 24D.
  • the circuit breaker according to the invention is mounted vertically on a horizontal support rail, transversely with respect to this support rail, with its operating member 19 directed upwards in the latching position, the attachment part 12 is prevented from engaging with the pawl 85 if, during a tripping, the circuit breaker is the object of a mechanical incident leading for example to a bonding of the movable contacts 13P, 13N on the contacts fixed 21P, 21N and / or blocking of the assembly.
  • this attachment piece 12 is such that it is then the object of a torque around the fixed axis A1 sufficient so that, despite the reset spring 49, it remains at a distance from the pawl 85.
  • the arm 63 of the attachment piece 12 carrying the lug 62 provided for the action of the thermal trigger member 24B extends at a distance from the insulation wall 43 of this attachment piece 12, parallel to this insulation wall 43.
  • the lug 62 extends in the direction of the latter.

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EP19950401825 1994-08-04 1995-08-03 Schutzschalter Expired - Lifetime EP0696041B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409691A FR2723470A1 (fr) 1994-08-04 1994-08-04 Disjoncteur
FR9409691 1994-08-04

Publications (2)

Publication Number Publication Date
EP0696041A1 true EP0696041A1 (de) 1996-02-07
EP0696041B1 EP0696041B1 (de) 1999-12-08

Family

ID=9466085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950401825 Expired - Lifetime EP0696041B1 (de) 1994-08-04 1995-08-03 Schutzschalter

Country Status (4)

Country Link
EP (1) EP0696041B1 (de)
DE (1) DE69513746T2 (de)
ES (1) ES2139162T3 (de)
FR (1) FR2723470A1 (de)

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EP0948021A1 (de) * 1998-04-03 1999-10-06 Legrand Multipoläre differenzial Schalter
EP1085552A1 (de) * 1999-09-16 2001-03-21 General Electric Company Abbrandkontaktanordnung
EP1146534A1 (de) * 2000-04-11 2001-10-17 Felten & Guilleaume KG Schaltmechanik für einen Schutzschalter
WO2003079389A1 (de) * 2002-03-18 2003-09-25 Eti Elektroelement D.D. Leitungsschutzschalter mit zweipoliger unterbrechung
EP1615252A1 (de) * 2004-07-05 2006-01-11 ABB Schweiz AG Bewegliche Kontakteinheit für eine Kontaktanordnung eines Schutzschalters
WO2006074883A1 (en) * 2005-01-17 2006-07-20 Vimar S.P.A. Differential thermomagnetic switch
EP1816665A1 (de) * 2006-02-03 2007-08-08 Hager-Electro SAS Schaltschloss mit beweglicher Drehachse
CZ300092B6 (cs) * 2001-09-20 2009-01-28 Moeller Gebäudeautomation KG Spínací mechanika pro ochranný spínac
FR2956922A1 (fr) * 2010-03-01 2011-09-02 Schneider Electric Ind Sas Dispositif de coupure
WO2011112159A1 (en) * 2010-03-08 2011-09-15 Eti Elektroelement D.D. Protective electric switch
CN102426999A (zh) * 2011-09-13 2012-04-25 浙江正泰电器股份有限公司 模数化断路器的操作机构
CN103346046A (zh) * 2013-06-05 2013-10-09 温州大观电气有限公司 一种开关脱扣装置
EP3171385A4 (de) * 2014-07-17 2018-02-21 Chint Group Corporation Betriebsvorrichtung eines mehrpoligen miniaturschutzschalters

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GB2026244A (en) * 1977-04-14 1980-01-30 Belli A & Co A Di Circuit breaker tripping
FR2478368A1 (fr) * 1980-03-12 1981-09-18 Merlin Gerin Mecanisme de manoeuvre pour disjoncteur tetrapolaire
EP0570647A1 (de) 1992-05-13 1993-11-24 Hager Electro S.A. Schaltschloss für Schutzschalter und Schutzschalter, mit diesem integriert
EP0639845A1 (de) * 1993-08-17 1995-02-22 Schneider Electric Sa Vierpoliger Differentialschutzschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2026244A (en) * 1977-04-14 1980-01-30 Belli A & Co A Di Circuit breaker tripping
FR2478368A1 (fr) * 1980-03-12 1981-09-18 Merlin Gerin Mecanisme de manoeuvre pour disjoncteur tetrapolaire
EP0570647A1 (de) 1992-05-13 1993-11-24 Hager Electro S.A. Schaltschloss für Schutzschalter und Schutzschalter, mit diesem integriert
EP0639845A1 (de) * 1993-08-17 1995-02-22 Schneider Electric Sa Vierpoliger Differentialschutzschalter

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0948021A1 (de) * 1998-04-03 1999-10-06 Legrand Multipoläre differenzial Schalter
FR2777110A1 (fr) * 1998-04-03 1999-10-08 Legrand Sa Disjoncteur differentiel multipolaire
EP1085552A1 (de) * 1999-09-16 2001-03-21 General Electric Company Abbrandkontaktanordnung
EP1146534A1 (de) * 2000-04-11 2001-10-17 Felten & Guilleaume KG Schaltmechanik für einen Schutzschalter
CZ300092B6 (cs) * 2001-09-20 2009-01-28 Moeller Gebäudeautomation KG Spínací mechanika pro ochranný spínac
AU2003214137B2 (en) * 2002-03-18 2006-03-16 Eti Elektroelement D.D. Circuit breaker having double pole interruption
WO2003079389A1 (de) * 2002-03-18 2003-09-25 Eti Elektroelement D.D. Leitungsschutzschalter mit zweipoliger unterbrechung
CN100356494C (zh) * 2002-03-18 2007-12-19 Eti电技术公司 具有双极开断部分的断路器
US7132912B2 (en) 2004-07-05 2006-11-07 Abb Schweiz Ag Moving contact unit for a contact arrangement in a circuit breaker
EP1615252A1 (de) * 2004-07-05 2006-01-11 ABB Schweiz AG Bewegliche Kontakteinheit für eine Kontaktanordnung eines Schutzschalters
WO2006074883A1 (en) * 2005-01-17 2006-07-20 Vimar S.P.A. Differential thermomagnetic switch
CN101128899B (zh) * 2005-01-17 2010-05-19 维马股份公司 差动热磁开关
CN101410926B (zh) * 2006-02-03 2013-04-17 黑格电子股份有限公司 可移动的心轴锁定机构
WO2007088284A1 (fr) * 2006-02-03 2007-08-09 Hager-Electro Sas Mecanisme de serrure a axe mobile
EP1816665A1 (de) * 2006-02-03 2007-08-08 Hager-Electro SAS Schaltschloss mit beweglicher Drehachse
FR2956922A1 (fr) * 2010-03-01 2011-09-02 Schneider Electric Ind Sas Dispositif de coupure
EP2365510A1 (de) * 2010-03-01 2011-09-14 Schneider Electric Industries SAS Leistungsschalter
RU2549366C2 (ru) * 2010-03-01 2015-04-27 Шнейдер Электрик Эндюстри Сас Распределительное устройство
WO2011112159A1 (en) * 2010-03-08 2011-09-15 Eti Elektroelement D.D. Protective electric switch
AU2010347735B2 (en) * 2010-03-08 2015-10-15 Eti Elektroelement D.D. Protective electric switch
CN102426999A (zh) * 2011-09-13 2012-04-25 浙江正泰电器股份有限公司 模数化断路器的操作机构
CN102426999B (zh) * 2011-09-13 2014-11-19 浙江正泰电器股份有限公司 模数化断路器的操作机构
CN103346046A (zh) * 2013-06-05 2013-10-09 温州大观电气有限公司 一种开关脱扣装置
EP3171385A4 (de) * 2014-07-17 2018-02-21 Chint Group Corporation Betriebsvorrichtung eines mehrpoligen miniaturschutzschalters

Also Published As

Publication number Publication date
ES2139162T3 (es) 2000-02-01
DE69513746D1 (de) 2000-01-13
FR2723470A1 (fr) 1996-02-09
EP0696041B1 (de) 1999-12-08
DE69513746T2 (de) 2000-04-06
FR2723470B1 (de) 1997-02-07

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