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
  • H01H71/002—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
  • 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
  • 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
• • 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
  • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
  • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
  • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
  • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit
• • 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 with a CB part and a FI part, the switching lock of the CB part having a pawl support which can be latched with a pawl and is pivotally mounted, the pawl support being assigned a bimetallic release and a magnetic release for triggering.
• the switch lock of the FI part has a pivotable pawl and a pawl rest, the pawl rest is assigned a permanent magnet release, with a switching bridge for the LS part and with a switching bridge for the FI part, and wherein the switching bridges and in the housing of the circuit breaker are pivotally mounted about a common axis.
• Circuit breakers which contain an FI part (residual current protection part) and an LS part (line protection part), which in addition to overload protection also guarantee personal protection, are known in various embodiments.
• Various proposals have also been made to make the tripping process of the two parts of the circuit breaker dependent on one another.
• the LS part and the FI part are assigned independent protective elements (bimetallic release and magnetic release for the LS part, summation current transformer and permanent magnet release for the FI part).
• transmission elements In order to transmit the triggering from the FI part into the LS part and vice versa, transmission elements have been proposed earlier which penetrate the partition between the two parts of the circuit breaker.
• a circuit breaker with all-pole disconnection is known from DE-B-1 563 919.
• a transmission element designed as a slide is provided, which is guided in grooves in the side walls of adjacent shell halves.
• a disadvantage of this known circuit breaker is that the actuating parts of the circuit breaker must be designed with extensions that operate the slide.
• a line circuit breaker in which the coupling of the contact apparatus of the line circuit breaker with that of the switch for the center conductor is possible without changing the structure of the line circuit breaker is known from AT-B-378 283.
• the movable switching bridge of the circuit breaker is coupled to the movable contact of the switch for the center conductor via a slide guided on the side wall of the housing of the circuit breaker pelt.
• the slide has at least one projection which engages the movable contact of the switch for the center conductor and a projection which is designed as a pin and which is at the same time the bearing pin for the joint between the switching bridge and its actuating member.
• a fault current and line protection switch with a switch for a center conductor in which the movable switching bridge of the line protection switch arranged in a housing part with the movable contact arm of the switch for the center conductor accommodated in a further housing part is coupled via a slide guided on an intermediate wall of the housing.
• the permanent magnet release of the residual current protection Zes assigned a lever pivotally mounted in the housing, the trigger pin of the permanent magnet release being present at one end of the lever and the other end of the lever in the ON position of the switch with a spring-loaded actuating member which is one of the pawl supports of the circuit breaker assigned approach is locked.
• an extension is provided on the slide, which directs the actuating element against the force of the spring assigned to it when the contact arm of the switch for the center conductor is pivoted into its closed position in the direction for locking with the lever assigned to the permanent magnet release Position swiveled.
• EP-A-271 669 From EP-A-271 669 a mechanism for a Fl switch combined with a circuit breaker is known.
• the F1 switching bridge is not rigidly coupled to the LS switching bridge for joint actuation.
• no contact apparatus is provided in the FI part (cf. column 3, lines 20 to 23 of EP-A-271 669).
• two separate switch-on levers are provided in the switch of EP-A-271 669.
• a switch-off bracket is provided which is to be operatively connected to the release lever of the circuit breaker, in order to use the "movement" of the release device in the event of a fault current, the switch lock of the LS part in the sense of a Actuate. Details of how this is to be done are not given in EP-A-271 669.
• the invention has for its object to provide a circuit breaker of the type mentioned, in which both the overcurrent release and the fault current release takes place reliably.
• the switching bridge of the FI part is also pivoted and released from its associated, housing-fixed contact, without the switching lock of the FI part of the circuit breaker having to be triggered.
• the switching lock of the LS part is triggered by pivoting the pawl support of the switching lock of the LS part by coupling the pawl of the FI part to the pawl support of the LS part, whereupon the switching bridge of the LS part again switches the switching bridge takes the FI part of the circuit breaker according to the invention, so opens.
• the pawl of the switch lock of the LS part is pivotable under the action of the pawl of the FI part.
• the pawl support of the LS part is pivoted by the pivoting of the pawl of the FI part in the event of a fault current trip so that the switch lock of the LS part is triggered.
• This embodiment of the invention has the advantage that only small forces act on the switch lock, which is housed in the FI part of the circuit breaker according to the invention, since the switch lock does not have the force required to close the movable switching bridge of the FI part must catch.
• a further advantage results from the fact that in both tripping cases (overcurrent tripping on the one hand and residual current tripping on the other) reliable tripping takes place, including the switch lock of the CB part.
• the switching bridge of the LS part is coupled to the switching bridge of the FI part by a pin.
• a reliably working embodiment of the circuit breaker according to the invention is characterized in that a bolt is used in the pawl support of the switch lock of the LS part, which pin is assigned to the pawl of the FI part is, and that the pawl of the FI part runs when pivoting on the bolt, and the pawl support of the LS part pivoted in the sense of triggering the switch lock of the LS part.
• the pin is inserted in a switching bridge support for the switching bridge of the FI part and in a carrier tab of the switching bridge of the LS part and that the switching bridge carrier and the carrier tab are pivotally mounted about the axis.
• the relocking of the switch lock of the FI part is particularly simple and reliable if it is provided that the pawl of the switch lock of the FI part is under the action of a storage spring, which the pawl about a switch-lock-proof axis on the latching point with the latch edition too charged.
• the pawl support has a preferably finger-shaped attachment which is assigned to the trigger plunger of the permanent magnet trigger.
• a pawl reset device designed as a two-armed lever
• a pivotable lever is provided an arm with an extension of the switching bridge support and its other arm with an extension on the pawl for resetting the pawl after a fault current release interacts.
• the pawl is raised by the pawl restorer from the latching point and the latch support, so that under the action of the spring assigned to it, the pawl moves into the position ready for the latching can swing back.
• an attachment is provided on the switching bridge support for the switching bridge of the FI part, which has a back divider for the permanent magnet release in the ON position of the switching lock of the FI part at a distance from the trigger plunger of the Permanent magnet release holds.
• the back divider is an angle lever pivotable about a switch lock-fixed axis, that the shoulder on the switching bridge carrier engages between the two arms of the angle lever, and that a spring is provided which moves the reset element in the sense of pivoting onto the plunger of the permanent magnet release too loaded.
• the pawl support is pivoted into the latching position easily and safely if it is provided that the pawl support is under the action of a spring which loads the pawl support in the sense of pivoting into its locked position.
• a preferred embodiment of the protective switch according to the invention is characterized in that a trigger indicator with two pointers is pivotally mounted in the switch lock about an axis fixed to the switch lock, that the trigger indicator is under the action of a spring, that the pointers can be locked with a pointer catch which can be locked with the Pawl is coupled via a pointer bracket, and that the pointer catch releases the pointers when the pawl pivots in the event of a fault current trip under the action of the storage spring assigned to it.
• the trigger indicator pointers are actuated.
• the pointer latch can be pivoted about an axis which is fixed to the switching mechanism and is under the action of a spring which loads it with the pointers in the sense of a latching.
• an extension is provided on the switching bridge support, which pivots the pointers when the switching bridge is pivoted into its position corresponding to the ON position until they are locked with the pointer catch .
• the circuit breaker according to the invention can also be equipped with a test device for the FI part, which is equipped with a test button, test contacts and a test contact spring, one leg of which is assigned to the test button, as is often prescribed.
• a protective switch equipped with a test device it can be provided that the other leg of the test contact spring is pressed against the test contact of the test device assigned to it by the switch bridge carrier in its position corresponding to the ON position.
• the leg of the test spring is assigned a shoulder on the switching bridge support and that the leg, when the switching bridge is in the OFF position, bears against a stop fixed to the housing at a distance from the test contact assigned to it.
• This preferred embodiment of the test device of the circuit breaker according to the invention ensures that the test device can only be actuated effectively when the switching bridge is pivoted into its ON position, since one leg of the test contact spring is not in contact with the contact assigned to it when the Switch bridge is in its position corresponding to the OFF position.
• a particularly favorable kinematics when switching on results if it is provided that the switching bridge is mounted on the slot-fixed pivot axis via an elongated hole and that the switching bridge carrier, which is also pivotably mounted about the axis, can be pivoted about an axis on the switching bridge is supported. It is useful if the axis is arranged between the pivot axis and the end of the switching bridge assigned to the housing-fixed contact.
• the switching bridge of the LS part there is a favorable movement sequence and a secure contact with the closest contact if it is provided that the switching bridge of the LS part is pivotably mounted via an elongated hole on the axis, and that the carrier tab, which is also pivotally mounted about the axis, is supported on the switching bridge so as to be pivotable about an axis.
• An embodiment has proven itself here, in which it is provided that the axis, about which the carrier lug is pivotally supported on the switching bridge, is provided between the elongated hole of the switching bridge and its end assigned to the contact fixed to the housing.
• Fig. 11 shows an embodiment of the switch lock of the FI part without a contact position indicator
• Fig. 12 shows the assembly of the switching bridge of the FI part.
• All components of the combined FI / LS switch are housed in a housing consisting of an intermediate shell 44 and two outer shells (not shown in the drawings).
• the LS part shown in FIGS. 1 to 5 has an actuating button 1 which is pivotally mounted in the housing and which is coupled via a bracket 2 to a pawl 3 of the switch lock of the LS part.
• the LS part contains a bimetallic release 27 and a magnetic release 17, the bimetallic release 27 acting on a pawl support 6 via a drawbar 13 guided displaceably in the intermediate shell 44 and the magnetic release 17 via its armature 17 '. Furthermore, an arc quenching chamber 18 with deion plates is accommodated in the LS part, and terminals which are accessible from the outside are provided for connecting lines. The current is carried out in such a way that the terminal angle of the right-hand terminal in FIG. 1 is electrically conductively connected to the bimetallic release 27.
• the bimetallic Solver 27 is in turn connected in an electrically conductive manner to the movable switching bridge 5 via a conductor cable and to the magnetic release 17 when the contacts are closed. Another round cable 25 leads from the magnetic release into the FI part, is guided in it with at least one turn via the transducer 43 and finally with the clamp angle of the other (left in FIG. 1) clamp of the LS part of the invention Switch electrically connected.
• the actuating button 1 which is pivotably mounted in the part of the housing receiving the LS part, is loaded by a spring 1 'into the pivot position shown in FIGS. 1 and 3, which corresponds to the OFF position.
• the actuating button 1 is coupled via the bracket 2 with a pawl 3 of the switch lock of the LS part.
• the pawl 3 is pivotally mounted on a support bracket 4, the mounting being carried out via a pin 7.
• the pawl 3 is U-shaped, the openings for receiving the pin 7 being provided in both legs of the pawl 3.
• a projection 9 is provided on the web of the pawl 3, which, as will be described later, can engage behind a shoulder 10 on the pawl support 6 in order to latch the pawl 3 to the pawl support 6.
• the pawl support 6 is pivotally mounted on the support bracket 4, both the support bracket 4 and the clinch support 6 being placed over a pivot axis 11 fixed to the housing and pivotable about the latter.
• the carrier tab 4 is in turn pivotally connected to the switching bridge 5, for example via a tubular rivet 12.
• the axis (tubular rivet 12), about which the carrier tab 4 can be pivoted relative to the switching bridge 5, is located between the pivot axis 11 fixed to the housing for the pawl support 6, the switching bridge 5 and the carrier plate 4 and the free end of the switching bridge 5, which in is in the ON position on the fixed contact of the LS part.
• the carrier tab 4 is U-shaped and is pivotally mounted in the region of its legs via the tubular rivet 12 on the switching bridge 5. In openings in the legs of the Carrier tab 4 also engages the pin 7, so that the pin 7 pivotably supporting the pawl 3 on the carrier tab 4 and the tubular rivet 12 are each inserted in two bearing openings of the carrier tab 4, so that there is a symmetrical loading.
• a torsion spring 16 is inserted over a projection 14 surrounding the bearing opening for the axis 11 in the pawl support 6.
• One end 16 'of the torsion spring 16 is hooked into a hook 4' on the support bracket 4 and the other end 16 '' of the torsion spring 16 is hooked into a hook 6 'on the pawl support 6.
• the torsion spring 16 loads the pawl support 6 so that it the end adjacent the pawl 3 and having the shoulder 10 is moved towards the clinch 3.
• a bearing opening designed as an elongated hole 20, through which the pivot axis 11 fixed to the housing engages, via which the support tab 4 and the pawl support 6 are also inserted with their bearing openings.
• the end 22 of the pawl support 6 opposite the pawl 3 is assigned the armature 17 'of the magnetic release 17 and, via the drawbar 13, which engages an angle 21 of the pawl support 6, the bimetallic release 27.
• the carrier lug 4 and the pawl supports 6 can be pivoted about a common axis (formed by the pivot axis 11 fixed to the housing).
• the switching bridge 5 can pivot further about the point of contact between its end and the housing-fixed contact, since the pivot axis 11 fixed in the housing in the slot 20 of the switching ⁇ bridge 5 is added, and the switching bridge 5 can therefore move relative to the pivot axis 11.
• a contact position indicator 8 is additionally provided.
• This contact position indicator 8 is in the housing about an axis 23 pivotally mounted and has a curved part 24 which is associated with an opening in the housing wall and is visible from the outside through this opening.
• the contact position indicator 8 also has a lever arm 8 'in which a curved, slot-shaped recess 28 is provided.
• the FI part of the switch according to the invention shown in FIGS. 6 to 11 in two embodiments consists of a switching bridge assembly (FIG. 12) with a switching bridge 36 which is connected via a switching bridge support 35 is pivotally mounted in the housing, and an assembly transducer, consisting of a transducer 43, a circuit 42 with a yoke assembly, two terminal angles 67 and 68 of the terminals of the FI part, a contact carrier with contact fixedly inserted in the housing in the intermediate shell 44 47 and round cables 26 and 38.
• a switching bridge assembly (FIG. 12) with a switching bridge 36 which is connected via a switching bridge support 35 is pivotally mounted in the housing
• an assembly transducer consisting of a transducer 43, a circuit 42 with a yoke assembly, two terminal angles 67 and 68 of the terminals of the FI part, a contact carrier with contact fixedly inserted in the housing in the intermediate shell 44 47 and round cables 26 and 38.
• the transducers 43 are also the windings that lead to the wiring 42 and the winding that leads to the permanent line, which is only shown in broken lines in FIG tmagnetauslöser 64 heard, performed.
• test device is provided in the FI part of the switch according to the invention.
• the test facility has a test button
• test spring 80 by pressing one end 83 of a test spring 82 in contact with the test contact 81 can be moved.
• the another contact 85 connected to the test line 23 is assigned to the other end 84 of the test spring 82, which is pivoted in a manner still to be described when the switching bridge 36 of the FI part is pivoted by the switching bridge carrier 35 in contact with the test contact 85 .
• test spring 82 switches the test resistor 86 between the outer conductor and the neutral conductor.
• the switching movement of the LS part is carried out via the actuating button 1, bracket 2, latch 3 and carrier plate 4 exerted on the switching bridge 5, transferred to the switching bridge carrier 35 and thus to the N switching bridge 36 carried by the latter.
• the N-switching bridge 36 is connected to the stop 39 and the terminal bracket 68 via the round rope 38.
• the test contact 85 is also connected to the terminal bracket 68 via the test resistor 86.
• the FI switch lock which is accommodated in the FI part at the top left in FIG. 6 and which interacts with the LS switch lock in a manner yet to be described, consists of two plates, namely a lock mounting plate 29 and one in FIG. 7 to 11 lock cover plate 30, not shown.
• the N-switching bridge 36 is fastened to the switching bridge carrier 35 so as to be pivotable about an axis formed by a bolt 66, the N-switching bridge 36 and thus the switching bridge carrier 35 being moved by a switching spring 37 into the open position shown in FIG. 6 (OFF position, Fig. 8) are pulled.
• the switching bridge support 35 is pivotally mounted about an axis fixed to the housing (bolt 60, which can be formed in one piece with the bolt forming the pivot axis 11 of the switching bridge 5 of the LS part and fixed in the intermediate shell 44) and is located below when viewed in accordance with FIG. 6 the lock mounting plate 29, ie between this plate 29 and the intermediate wall of the intermediate shell 44, which separates the LS part from the FI part.
• the bolt 60 engages Elongated hole in switch bridge 36.
• a pawl 31 which can be pivoted about the axis 60 fixed to the housing, about which the switching bridge support 35 can also be pivoted
• a pawl support 32 which is under is the effect of a leg 56 'of a jack rest spring 56 ("combination spring") which, via its other leg 56 ", drives the pointers 33 and 34 of a release indicator, which are pivotably mounted about an axis in the key switch Pawl support 32 from the associated leg 56 'of the spring 56 and the pointers 33 and 34 from the leg 56 "in the counterclockwise direction.
• the pawl support 32 has an approximately finger-shaped end 32 ', which is assigned to the plunger 51 of the permanent magnet release 64.
• a reset 49 is provided for the plunger 51 of the permanent magnet release 64 in the switch lock of the FI part and, under the action of a spring 50, is provided.
• the back divider 49 (shown in FIG. 7 in its position assumed before the assembly of the F1 switch lock has been installed) has a sleeve 62, which is inserted over an axis 61, and two arms 70, 71, between which a shoulder 72 of the switching bridge support 35 engages, so that the reset device 49 is lifted from the plunger 51 in the ON position shown in FIG. 9.
• the reset device 49 is pivoted under the action of the return spring 50 into the position shown in FIG. 8, so that the permanent magnet release 64 is reset by the arm 71 assigned to its plunger 51.
• a pawl rest 48 with two arms 76, 77 which is pivotable about an axis 74.
• the arm 76 interacts with a shoulder 75 on the switching bridge support 35.
• the other arm 77 is assigned to an extension 78 of the pawl 31.
• a pointer bracket 54 is provided which is coupled to a pivotable pointer catch 55.
• the pointer catch 55 interacts with the pointers 33 and 34.
• the pointer 34 which is engaged in the pointer catch 55 coupled to the pawl 31 via the pointer bracket 54, stands in front of a viewing window in the housing.
• One leg 56 "of the pawl support spring 56 acts on the pointer combinations 33 and 34.
• the switching bridge support 35 moves the pointers 33, 34 into position, if the pointer 33 was visible, via an extension 90 provided on it which of the pointers 34 is visible, this pointer position being secured by the pointer catch 55 and the pointer combination 33, 34 being held in contact with the attachment on the pointer catch 55 by the pawl support spring 56.
• the pawl 31 is pivoted by the switching bridge support 35, coupled via the pawl reset device 48, via the latching point.
• the counteracting force (FS in FIGS. 8 to 10) of the storage spring 46 (FIG. 6) is overcome and the latter is thus preloaded.
• the arm 71 of the reset device 49 for the permanent magnet release 64 is driven by the return spring 50 towards the plunger 51 of the permanent magnet release 64 and moves it into its initial position.
• the trigger display shows the pointer 34, which is engaged with the pointer catch 55 coupled to the pawl 31 via the pointer bracket 54.
• the pawl support spring 56 acts on the ratchet support 32 and the pointer combination 33 and 34. In this position, the switching bridges 36 (FI part) and 6 (LS part) are held in the OFF position by the contact springs 37 and 15, respectively.
• the actuating button 1 engages in the ON position after the dead center position (knee joint button bracket) has been exceeded.
• the two switching bridges 6 and 36 are pressed via the contact springs 15 and 37 (the force of the spring 37 is symbolized in FIG. 8 to 10 with "FK") with the necessary contact pressure on the contacts fixed to the housing (this is the bearing of the switching bridges 6 and 36 about their elongated holes as described above).
• FIG. 11 shows an embodiment of the FI part without a trigger indicator.
• the combined pawl support spring 56 which loads the pawl support 32 and the pointer combination 33, 34, is replaced by a simple pawl support spring 57.
• This support spring 57 is inserted with at least one turn over a pin 61 'on the lock plate 29 and supported on a further pin 61 ".
• the bimetallic release 27 or the magnetic release 17 of the LS part act on the pawl support 6 of the switch lock of the LS part and pivot it, so that the pawl 3 is released and the contact spring 15 releases the movable switching bridge 5 of the LS Partly, and also via the pin 7, the switching bridge support 35 and thus the N switching bridge 36 from the contact spring 37, pivoted into the OFF position.
• the switching bridge support 35 pivots such that the permanent magnet reset 49 can pivot counterclockwise under the action of its return spring 50 and is thereby brought into the position corresponding to the OFF position (see FIG. 8).
• the pawl 31 and the storage spring 46 are also brought into the OFF position in the last third of the switch-off movement via the switching bridge support 35 and the pawl reset device 48.
• the pawl 31 remains latched to the pawl support 32 and the pointer catch 55 holds the pointer combination 33/34 so that they are not pivoted by the spring 56.
• the position of the pointers 33/34 and 24 shows that it was an overcurrent trip (or a manual switch off - by pressing the control button (1)).
• the pointer catch 55 is also pivoted over the pointer bracket 54 and releases the pointers 33, 34, whereupon the latch support spring 56 can pivot the pointers 33, 34 so that the pointer 33 becomes visible and indicates that it is a fault current trip acted.
• the other movements during the switch-off process correspond to the above-described sequences for overcurrent tripping.
• the invention can be represented as follows, for example:
• a circuit breaker has an LS part and an FI part.
• the switch lock of the LS part has a pawl support that can be locked with a pawl, which interacts with a bimetallic release and a magnetic release for tripping (overcurrent).
• the switch lock of the FI part has a pawl 31 and a pawl support 32, which is associated with a permanent magnet release with release plunger 51.
• the switching bridge of the LS part and the switching bridge 36 of the FI part are pivotally mounted about a common axis 60 in the housing of the circuit breaker.
• the switching bridge of the LS part is coupled to the switching bridge 36 of the FI part by a pin 7, which is inserted into a switching bridge support 35 for the switching bridge 36 of the FI part, for common movement.
• a bolt 69 is inserted into the pawl support of the switch lock of the LS part, which is assigned to the pawl 31 of the FI part in such a way that it contacts the bolt 69 when it pivots in the event of a fault current.
• the latch support of the LS part is pivoted in the sense of triggering the switch lock of the LS part.

Landscapes

• Breakers (AREA)
• Control Of Combustion (AREA)
• Air Bags (AREA)
• Push-Button Switches (AREA)
• Saccharide Compounds (AREA)
• Switch Cases, Indication, And Locking (AREA)
• Electrophonic Musical Instruments (AREA)
• Percussive Tools And Related Accessories (AREA)
• Valve Device For Special Equipments (AREA)
• Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
• Emergency Protection Circuit Devices (AREA)
• Burglar Alarm Systems (AREA)
• Control Of Eletrric Generators (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=3493296

Family Applications (1)

Country Status (11)

Cited By (3)

Citations (4)

Family Cites Families (1)

• 1993
  • 1993-03-18 AT AT0053993A patent/AT410726B/de not_active IP Right Cessation
• 1994
  • 1994-02-15 HU HU9501522A patent/HU216853B/hu not_active IP Right Cessation
  • 1994-02-15 DE DE59403994T patent/DE59403994D1/de not_active Expired - Lifetime
  • 1994-02-15 AT AT94906793T patent/ATE157813T1/de active
  • 1994-02-15 ES ES94906793T patent/ES2108427T3/es not_active Expired - Lifetime
  • 1994-02-15 WO PCT/AT1994/000015 patent/WO1994022158A1/de active IP Right Grant
  • 1994-02-15 EP EP94906793A patent/EP0731979B1/de not_active Expired - Lifetime
  • 1994-02-15 CZ CZ951513A patent/CZ285628B6/cs not_active IP Right Cessation
  • 1994-02-15 AU AU60334/94A patent/AU676010B2/en not_active Expired
  • 1994-02-15 DK DK94906793.8T patent/DK0731979T3/da active
• 1995
  • 1995-07-13 NO NO952790A patent/NO306361B1/no not_active IP Right Cessation
• 1997
  • 1997-09-24 GR GR970402507T patent/GR3024863T3/el unknown

Patent Citations (4)

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