EP0317660B1 - Schütz - Google Patents

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Publication number
EP0317660B1
EP0317660B1 EP87117364A EP87117364A EP0317660B1 EP 0317660 B1 EP0317660 B1 EP 0317660B1 EP 87117364 A EP87117364 A EP 87117364A EP 87117364 A EP87117364 A EP 87117364A EP 0317660 B1 EP0317660 B1 EP 0317660B1
Authority
EP
European Patent Office
Prior art keywords
contact
contactor according
slide
contactor
angle member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87117364A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0317660A1 (de
Inventor
Helmut Lemmer
Josef Risthaus
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.)
Square D Co Deutschland GmbH
Original Assignee
Square D Co Deutschland GmbH
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 Square D Co Deutschland GmbH filed Critical Square D Co Deutschland GmbH
Priority to ES198787117364T priority Critical patent/ES2035843T3/es
Priority to EP87117364A priority patent/EP0317660B1/de
Priority to AT87117364T priority patent/ATE82087T1/de
Priority to DE8787117364T priority patent/DE3782499D1/de
Priority to CN88103874.1A priority patent/CN1033337A/zh
Priority to CA000582438A priority patent/CA1295358C/en
Priority to AU24994/88A priority patent/AU608488B2/en
Priority to US07/272,289 priority patent/US4931757A/en
Priority to BR888806185A priority patent/BR8806185A/pt
Priority to DK655388A priority patent/DK655388A/da
Priority to NO885256A priority patent/NO171526C/no
Publication of EP0317660A1 publication Critical patent/EP0317660A1/de
Application granted granted Critical
Publication of EP0317660B1 publication Critical patent/EP0317660B1/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
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding
    • H01H2003/002—Means for preventing or breaking contact-welding with lockout, e.g. two contact pairs in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H2089/065—Coordination between protection and remote control, e.g. protection job repartition, mutual assistance or monitoring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/443—Connections to coils
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • 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
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H01H71/162—Electrothermal mechanisms with bimetal element with compensation for ambient temperature
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Definitions

  • the invention relates to a contactor with a housing, in which a magnetic system and at a distance from the mounting side a main system with main contacts with double contact interruption having contact system are housed, on the mounting side to a magnet system, thermal triggers and also within the housing for each phase Magnetic triggers are provided, which act on the contact system by means of an actuating device and are based on EP-A-0 185 107.
  • a motor protection device normally consists of a contactor, to which a separate thermal motor protection is assigned, which is housed in a special housing.
  • the entire contact system and the magnet system by which the contact system is actuated are then accommodated in a single housing, specifically the magnet system is either on the mounting side of the contact system or on the side of the contact system remote from the mounting side, that is to say above it arranged.
  • the movable armature of the magnet system is connected to the contact bridge holder of the contact system via a coupling.
  • a thermal motor protection part is also accommodated in the housing, which only triggers if the current load or thermal load exceeds a certain level.
  • Another contactor known from EP-A-0 185 107 is of relatively compact design due to its construction, so it requires only little space on a mounting wall or in the control cabinet and the wiring can be carried out largely within the contactor.
  • short-circuit fast triggers or magnetic triggers are also provided, which act on a switch lock and thus on the contact system and, in the given case, switch off the motor protection switch.
  • An undervoltage or shunt release can also be provided.
  • the main disadvantage of this contactor serving as a motor protection switch is that it can only be switched on manually by means of the switch-on button and a deliberate switch-off can only be carried out manually by means of a switch-off button, apart from the automatic switch-off by the motor protection described.
  • EP-A-0 237 607 In order to create a contactor that is as compact as possible with the least possible external wiring effort, it was proposed in EP-A-0 237 607 to provide a contact system in a housing near the mounting side and an actuating device vertically above it, with one side of the actuating device at each phase Thermal triggers and magnetic triggers are arranged, which are operatively connected to the actuator. On the other side of the actuating device, an electromagnetic drive is arranged, the armature of which is connected to an extension piece of a common contact bridge holder of the contact system via articulated toggle levers. A slide is also provided, on which the toggle levers on the one hand and the thermal and magnetic triggers on the other hand engage.
  • a mechanical device with two rockers is activated, so that the circuit of the coil of the electromagnet is interrupted, the armature drops and the contact bridges are opened in the other phases .
  • a thermal release is also provided, which can also switch off the motor protection switch in the event of a fault via the mechanical actuation device.
  • the invention is based on the object of creating a compact contactor with little external wiring with integrated thermal and magnetic triggers, which ensures great switching reliability.
  • the additional contacts can remain closed during the normal switching operation of the contactor, they are therefore subject to virtually no wear, so that there is no danger of these additional contacts being welded for this reason. Even this danger is eliminated in that the additional contacts are forcibly opened in the event of an overload.
  • FIGS. 1 to 4 For the sake of clarity, individual parts of the contactor according to the invention are drawn out in FIGS. 1 to 4, while FIG. 5 illustrates a longitudinal section through the entire contactor composed of the individual parts according to FIGS. 1 to 4.
  • the actual contactor 1 according to FIG. 1 has a lower housing part 2 and an upper housing part 3 with a division plane 4 which runs perpendicular to the image plane of FIG. 1.
  • the housing parts can be connected to one another by conventional screwing.
  • clamp-like connecting springs 10 with a crank 11 at the lower end and a support bow 12 at the upper end, so that a simple tool-free clamping of the housing parts is made possible, so that both simple assembly and disassembly is achieved.
  • the lower housing part 2 has a lower fastening plate on the fastening side, which is provided with a quick fastener (not shown in detail) and is used for connection to a standard mounting rail.
  • the magnet system consists of a core 6 with short-circuit rings 8 and 9, which is fastened in the lower housing part 2, and an armature 7 and a coil 13 movable in the upper housing part 3.
  • the armature 7 is fastened to a connecting piece 14, from which lateral guide tabs 15 extend that enclose the anchor laterally.
  • a plunger 16 is connected, which is extended upwards to a contact bridge holder and ends with a pushbutton 17 which protrudes outwards through an opening in the upper housing part and the height of which indicates the switching status of the contactor.
  • a contact bridge 19 with movable contact pieces 20, 21 is arranged so as to be vertically movable.
  • the contact bridge 19 is under the pressure of a helical compression spring 22 with the interposition of a further bow spring 23, which serves for better mounting and guidance.
  • Fixed contact rails 24 with fixed contact pieces are arranged to the contact bridge, of which only one rail is shown in FIG. 1. This leads to a terminal 26, which in turn carries a contact terminal screw 27. The terminal 26 is used to connect the external wiring, not shown.
  • Figure 2 shows some additions compared to Figure 1. As for the shooter part of Figure 1, it agrees with Figure 2 and the same reference numerals have been used for the same parts.
  • 2 shows a further U-shaped fixed contact rail 29 with a fixed contact piece 28 on the upper side of the web 30 of the fixed contact rail 29.
  • One end of a tension spring 35 is fastened to the lower end of the leg 31, while the other end of the tension spring is fastened to a pivotable one Contact rail 33 attacks.
  • the pivot bearing of the contact rail 33 is located on the outside of the lower end of the leg 32, but with a certain small distance above the center line or pull line of the tension spring 35. In the drawn position, the contact rail 33 with the movable contact piece 34 is by the tension spring 35 pressed down.
  • the contact rail is moved counterclockwise around the pivot bearing, so that the tension spring also moves over the corresponding dead center and then contributes to the sudden opening of the contact, until the contact rail is in the dot-dash position 33a.
  • FIG. 3 shows a vertical section through the upper housing part 3, but compared to FIGS. 1 and 2 not in one plane of a phase, but in a plane in which the coil connections are located.
  • the coil connections are of course only on one level, since only two connections are required.
  • the coil connection screws 37 and 39 are accessible from above through holes for a screwdriver, the holes also serving as guides for the screwdriver.
  • coil connecting rails 40 and 41 with vertical legs 42 and 43 are provided, the latter being connected to the coil.
  • the coil connecting wires are not directly connected to the legs 42 and 43, but there are advantageously mutually not shown spring pieces that meet when the upper housing part 3 is placed on the lower housing part 2 and ensure a safe current transfer and at the same time facilitate assembly and disassembly. It is of particular importance that In the current path of the coil connections, an additional contact that is forcibly opened is provided. This additional contact is formed by a fixed contact piece 46 and a movable contact piece 47.
  • the fixed contact piece 46 is attached to the top of a right-angled leg of the coil connecting rail 41, while the movable contact piece 47 is attached to the outer end of a contact spring clip 44.
  • the contact end bracket is attached with its right end to a right-angled rail 45, which in turn is electrically conductively connected to the coil terminal 38.
  • FIG. 49 denotes a magnetic release, which essentially consists of a coil carrier 50, a coil 51 and a fastening part 52.
  • an armature 53 is arranged axially displaceably, which has a window at the lower end and, as described below, interacts with an actuating device.
  • the actuating device has a first angle piece 54 with a left leg 55.
  • the angle piece has a web 58.
  • the pivot bearing for the angle piece is provided with the reference number 57.
  • the web 58 At its outer, lower end the web 58 has an angled part 59 with a lug 60.
  • a pressure spring 61 engages on the web 58, the other end of which is supported on the inner wall of the housing 87 and which tries to turn the angle piece 54 in the bearing 57 in a clockwise direction to pan.
  • a second angle piece 62 Below the first angle piece 54 there is a second angle piece 62, one leg 63 of which engages in the window 90 of the armature 53.
  • the angle piece 62 is held in a pivot bearing 64 and it has a step 65.
  • a compensation strip 66 is also attached to the angle piece 62, the lower free end of which rests on a spherical projection 68 of a lever arm 67 and serves for compensation with respect to the room temperature.
  • the compensation strip 66 and the lever arm 67 are provided only once, while all the other parts which have been explained so far with reference to FIG. 4 and also explained below in this regard are provided in triplicate, as will be explained further below.
  • the lever arm 67 is attached to a third angle piece 70 at 69.
  • This angle piece 70 is connected at 71 to the upper angle piece 62.
  • the outwardly angled leg of the angle piece 70 has an opening or a slot into which a web 72 of a thermal release 73 engages from above.
  • the thermal trigger is attached to its upper end by a bracket 74.
  • a fixed contact piece 76 of a fixed contact rail 77 is also shown.
  • This fixed contact rail 77 is essentially C-shaped and its leg 78 leads to a clamp 79 with a contact connection screw 80.
  • the fixed contact piece 76 interacts with the movable contact piece 34 of the contact rail 33 already described. So this is an additional one Contact for one phase each, for a total of three additional contacts.
  • the mode of operation of the device according to FIG. 4 is essentially as follows. If an overcurrent suddenly occurs, for example from ten times the nominal current to a short circuit, the magnetic release 49 in the relevant phase comes into operation, that is to say the armature 53 is suddenly pulled up, so that the leg 63 of the second angle piece 62 about the pivot bearing 64 moves in the clockwise direction and the nose 60 is free relative to the step 65, so that the compression spring 61 also swings the first angle piece 54 around the bearing 57 in a clockwise direction. The left end of the leg 55 of the angle piece 54 engages in the slide 48, so that it is moved upward and triggers a double function, which will be explained in more detail below.
  • a similar process takes place when a thermal release 73 responds in at least one phase when the overcurrent rises slowly, for example up to six to eight times the nominal current. This then presses with its web 72 the third angle piece 70 to the left, so that the second angle piece 62 again in the described clockwise direction moved and the contact is triggered.
  • FIG. 5 now shows the overall contactor composed of the parts of Figures 1 to 4.
  • the same reference numerals as in FIGS. 1 to 4 have been used for all parts.
  • FIG. 5 essentially illustrates the double action of the slider 48. This is designed so that, as described, it is effectively connected to the left end of the leg 55 of the angle piece 54, that it also moves the contact rail 33 when it is moved upward takes forcibly upwards, so forcibly opens the contact between the contact pieces 34 and 76.
  • the slide 48 is extended upwards so far that it can perform a second function, namely also strikes under the contact spring clip 44 and thus opens the coil contact with the contact pieces 46 and 47.
  • the action of the tension spring 35 causes the contact rail 33 to snap up into position 33a.
  • the device can be switched on again by pivoting the contra-angle 54 counterclockwise, specifically on the top of the upper housing part a correspondingly configured restart button or a plunger 88 with a plunger head 89 (FIGS. 6, 11 and 12) is provided, above all, to return the contact rail 33 from the spread position 33a back to the original position. At the same time, this also brings the contact spring clip 44 back into the switched-on position.
  • the housing part 87 for receiving the contactor part according to FIG. 4 can optionally be designed differently. So it can with the lower housing part 2 can be integrated or it can be divided according to the lower housing part 2 and the upper housing part 3 or it can be manufactured as a separate housing part in order to be firmly connected to the other housing parts after the installation of the individual device parts. Finally, there is a particularly advantageous possibility of expanding the housing part 87 upwards and accommodating all additional contacts both for the phases and for the coil connection. Compared to the previously described exemplary embodiment, this requires only a relatively small redesign according to FIG. 7, so that a component is created which can also be retrofitted to conventional contactors. It is important that intermediate wiring with contact connection screws is omitted.
  • the contactor explained above embodies a number of properties and advantages. One shift is possible by hand.
  • the contactor can also be switched on and off by remote control. Furthermore, overload protection of each individual phase is provided by both magnetic triggers and thermal triggers. The additional contacts per phase and in the coil connection are positively opened when tripped, so that a shutdown takes place in any case, even if the main contacts should be welded.
  • the switching status of the contactor is constantly visible from the outside.
  • the contactor can advantageously be used as a motor protection switch. Overall, despite all the possibilities, there is such a compact design that the contactor as a conventional Contactor can be attached to a standard mounting rail, for example, without requiring any significant space.
  • the mostly standardized width of the contactors (perpendicular to the image plane) can be maintained so that the contactor can be placed close together with other, possibly conventional contactors, in a control cabinet or on a mounting plate.
  • the lowest possible wiring is required, namely two three, ie six, wiring connections with contact connection screws for the three phases and two further wirings with connection screws for the coil connection. All connection screws are freely accessible from the operating side.
  • FIGS. 6 and 7 The exemplary embodiment of the contactor according to the invention shown in FIGS. 6 and 7 largely corresponds to the contactor according to FIGS. 1 to 5, so that the same reference numerals have been used for all the same parts.
  • Another design has received the fixed contact rail 81, which is also U-shaped, but with a vertical web in the drawing and two horizontal legs, the lower leg having a kink 83, which is used for pivoting a contact rail 82.
  • a compression spring 84 is inserted obliquely between the upper leg of the fixed contact rail 81 and the inner end of the contact rail 82 and can be held by pins or projections on both sides. In this case too, the contact rail in the open position assumes approximately the position shown with the reference symbol 82a.
  • the compression spring 84 is inserted between the fixed contact rail 81 and the pivotable contact rail 82 in such a way that it increases the contact pressure between the contact pieces 34 and 76 in the normal switched-on operating position, but increases after tripping via a Dead center position moved away and the opening force increased.
  • arc quenching chambers or lamellae 85 can advantageously also be arranged.
  • FIGS. 8 to 10 illustrate, in comparison to FIG. 4, another simplified exemplary embodiment of an actuating device in three different operating positions.
  • the same reference numerals as in FIG. 4 have been used for the same or equivalent parts.
  • magnetic triggers 49 and thermal triggers 73 are again present, one trigger per phase, that is, three triggers perpendicular to the image plane at a distance from one another, as has been explained above.
  • the actuating device also has an angle piece 54, the leg 55 of which engages with the left end in the drawing in a window of the slide 48 and which can be pivoted about a bearing 57.
  • a cranked lever 91 is provided, which is again held in the pivot bearing 64 and which, in the normal operating position according to FIG. 8, locks the angled part 59 of the angle piece 54 because the edge of the nose 60 rests on the adjacent edge of the step 65 .
  • the left end of the cranked lever 91 which is expediently crowned on the underside, engages in a window 90 of the armature 53 or a lower extension of the armature. If a magnetic trigger 49 now responds, the armature is attracted.
  • the cranked lever 91 pivots clockwise around the pivot bearing 64 and gives the angled part 59 of the Elbow 54 under the pressure of the spring 61 free, so that the slider 48, as described above, is suddenly moved up again and opens all the additional contacts described.
  • This operating position is shown in Figure 10.
  • the lower web 72 presses on a lug 94 of a pivot lever 93, which is held in a pivot bearing 71.
  • the nose 94 of the pivot lever bears against the web 72 and, in addition, the pivot lever 93 with the ball 68 bears against a rail loaded by the spring 92, which in turn is fastened in the cranked lever.
  • this rail 66 can also be designed as a compensation strip.
  • the pivot lever 93 pivots out in the corresponding direction, takes the rail 66 with it, as a result of which the cranked lever 91 is pivoted clockwise or in the direction of the arrow about the pivot bearing 64 is, so that the angle piece 54 comes back to the release position as described above and causes the contact opening of all additional contacts via the slide 48.
  • the above statements in connection with FIG. 4 also apply to this exemplary embodiment according to FIGS. 8 to 10.
  • FIGS. 11 and 12 illustrate a particularly important embodiment in the diagram, which is also shown in principle in FIG. 6 in order to clarify the connection with the other parts of the contactor. These are shown in FIG. 6 Device parts are also to be used equally in the exemplary embodiment according to FIGS. 1 to 5.
  • the slider 48 is designed as a flat, substantially rectangular plate which can be displaced between suitable guides, not shown, within the housing part 87 in the direction of the arrow 95.
  • a plunger 88 is fastened with a plunger button for manual actuation, which projects outwards through an opening in the upper housing wall and which makes the respective operating position visible. The inward position indicates the normal on position. If the plunger 88 protrudes far up, you can see the release position in which all additional contacts are open.
  • the slider 48 has three windows 96, 97 and 98 in the lower area, into which the legs 55 (FIG. 4) or 99, 100 and 101 of the angle pieces 54 or 102, 103 and 014 engage. Approximately in the middle area, further windows 105, 106 and 107 are incorporated in the slide 48, through which the pivotable contact rails 33 (FIG. 4) or 109, 110 and 111 are guided. The same applies to the contact rails 82 in the exemplary embodiment according to FIG. 6.
  • a further window 108 is provided in the slide 48, which, however, is only shown in FIG For the sake of clarity and for better differentiation, it is drawn in an upper right projection, but in practice it can be arranged within the rectangular plate of the slider 48 and further down.
  • the contact spring clip 44 is passed through this window 108.
  • the size of the window is to be adapted to the circumstances, so that the contact rails or the contact spring clip have a certain amount of play, but can inevitably be brought safely into the open position and when switched on again in the closed position.
  • a lock is provided between the slide 48 and a suitable head part 112 of a common contact bridge holder of the contactor contact system.
  • This head part 112 is shown only schematically in FIG. Figure 6 clearly shows, however, that this head part is a part which is connected to the plunger 16 and to the common contact bridge holder and thus to the armature 7 of the contactor.
  • the lock is now arranged and designed such that the additional contacts, which have been described in detail above, can only be switched on again if all main contacts 20, 21, 25, 28 of the contactor contact system are open.
  • the lock expediently has a cross slide 114.
  • the cross slide 114 is provided after the slide 48 with an inclined surface 118 which interacts with another window 119 of the slide 48.
  • the cross slide 114 has a somewhat offset projection 115, which can be snapped into a notch 113 or an indentation or recess in the head part 112.
  • the cross slide 114 as illustrated in FIG. 12, is provided with a compression spring 117, which is arranged such that it connects the cross slide 114 to the Tried to push slider 48.
  • the compression spring 117 is used, for example, in an elongated rectangular recess in the cross slide, the right end of the compression spring being supported on the wall of the recess and being held immovably there, for example by a pin or the like.
  • the left end of the compression spring is supported on a stop 121, which is connected to a guide 116, for example, in an embodiment not shown.
  • the cross slide 114 is advantageously held by a guide 116, which allows the cross slide to be displaced in its longitudinal direction and between stops, not shown, parallel to the displacement direction of the slide 48 and the head part 112.
  • FIGS. 11 and 12 The mode of operation of this constructional detail according to FIGS. 11 and 12 is essentially as follows, starting from the operating state shown in FIG. 12 and in which both all main contacts 20, 21 and all described additional contacts are open.
  • the plunger head 89 is actuated by pressing it down to switch the additional contacts on or on again.
  • the edge 120 on the upper edge of the window 119 reaches the inclined surface 118 of the cross slide 114, which is thereby displaced to the left against the pressure of the compression spring 117, so that the projection 115 engages in the notch 113.
  • the additional contacts for the three phases are switched on without load, since the main contacts of the Contactors are open.
  • the additional contact for the coil connection is closed, however, so that the contactor can now operate normally, ie can be switched on and off.
  • the actuating device moves into the locking position described, for example according to FIGS. 5 to 8. While the projection 115 of the cross slide 114 engages in the notch 113, when the slide 48 is pressed down, the outer edge of the inclined surface 118 bears against the left wall surface of the slide 48. If the contactor is now switched on, the plunger 16 with the head part 112 and with the common contact bridge holder moves down to the switch-on position, the latched cross slide being carried along on or with the guide 116 until the inclined surface 118 of the cross slide is in again the window 119 of the slide 48 can slide in, under the action of the compression spring 117. The projection 115 disengages, so that the contactor can now operate completely normally.
  • the cross slide 114 cannot be shifted to the left and its right end remains in the window 119 of the slide 48 and thus blocks the shifting movement of the slide 48 into the switched-on position. Only after the fault has been completely eliminated can it be switched on again if the main contacts of the contactor are open.
  • the main advantages of the contactor according to the invention are emphasized here.
  • the compactness of the contactor with all the functions described in a single device results in considerable connection savings and space savings for transport, storage and assembly in comparison with known contactors.
  • the contactor itself can operate completely normally, taking into account that a contactor has a switching capacity of up to approximately 10 million switching operations during the normal service life.
  • the described additional contacts switch only in the event of an overload and are therefore only loaded to a relatively small extent, so that there is also a high degree of switching reliability.
  • the additional contacts can only be switched on without load. This prevents bouncing.
  • the entire actuator, which is also called Switch lock can only be effective with its thermal and magnetic triggers if it is overshot.
  • a small switching cycle in the actuating device or the switching lock according to the invention is only a small switching cycle in the actuating device or the switching lock according to the invention.
  • the compact construction of the contactor with a contactor part according to FIG. 1 which is quite normal per se results in the further advantage that additional parts, such as auxiliary contact blocks or modules, can be attached or constructed.

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  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Fats And Perfumes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Seal Device For Vehicle (AREA)
  • Electronic Switches (AREA)
  • Protection Of Generators And Motors (AREA)
  • Contacts (AREA)
  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP87117364A 1987-11-25 1987-11-25 Schütz Expired - Lifetime EP0317660B1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES198787117364T ES2035843T3 (es) 1987-11-25 1987-11-25 Contactor.
EP87117364A EP0317660B1 (de) 1987-11-25 1987-11-25 Schütz
AT87117364T ATE82087T1 (de) 1987-11-25 1987-11-25 Schuetz.
DE8787117364T DE3782499D1 (en) 1987-11-25 1987-11-25 Schuetz.
CN88103874.1A CN1033337A (zh) 1987-11-25 1988-06-22 接触器
CA000582438A CA1295358C (en) 1987-11-25 1988-11-07 Contactor and/or circuit breaker
AU24994/88A AU608488B2 (en) 1987-11-25 1988-11-10 Contactor and/or circuit breaker
US07/272,289 US4931757A (en) 1987-11-25 1988-11-17 Contactor and/or circuit breaker
BR888806185A BR8806185A (pt) 1987-11-25 1988-11-24 Contactor
DK655388A DK655388A (da) 1987-11-25 1988-11-24 Relae
NO885256A NO171526C (no) 1987-11-25 1988-11-24 Kontaktor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87117364A EP0317660B1 (de) 1987-11-25 1987-11-25 Schütz

Publications (2)

Publication Number Publication Date
EP0317660A1 EP0317660A1 (de) 1989-05-31
EP0317660B1 true EP0317660B1 (de) 1992-11-04

Family

ID=8197473

Family Applications (1)

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EP87117364A Expired - Lifetime EP0317660B1 (de) 1987-11-25 1987-11-25 Schütz

Country Status (11)

Country Link
US (1) US4931757A (no)
EP (1) EP0317660B1 (no)
CN (1) CN1033337A (no)
AT (1) ATE82087T1 (no)
AU (1) AU608488B2 (no)
BR (1) BR8806185A (no)
CA (1) CA1295358C (no)
DE (1) DE3782499D1 (no)
DK (1) DK655388A (no)
ES (1) ES2035843T3 (no)
NO (1) NO171526C (no)

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EP1577919B1 (en) * 2004-03-15 2014-09-10 Omron Corporation Electromagnetic relay
EP1643525B1 (de) * 2004-09-29 2007-10-31 ABB Schweiz AG Einstellmodul für eine Überstromauslösung eines Schutzschalters
DE102004062269A1 (de) * 2004-12-23 2006-07-13 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes
DE102004062270B4 (de) * 2004-12-23 2012-08-30 Siemens Ag Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes sowie Schaltgerät
CN1866446B (zh) * 2005-05-20 2011-11-02 拉森特博洛有限公司 用于对关闭状态下的过载继电器进行密封的装置
EP2036107A1 (de) * 2006-06-30 2009-03-18 Siemens Aktiengesellschaft Verfahren und vorrichtung zum sicheren betrieb eines schaltgerätes
US20110037543A1 (en) * 2007-10-11 2011-02-17 Dale Walter Lange Electrical switching device
US7834724B2 (en) * 2008-04-15 2010-11-16 General Electric Company Electromechanical interlock for electrical protection devices
EP2309528A4 (en) * 2008-07-04 2014-11-26 Hubei Shengjia Wiring Co Ltd CIRCUIT BREAKER FUNCTION CIRCUIT BREAKER
US8093965B2 (en) * 2008-12-03 2012-01-10 Schneider Electric USA, Inc. Add-on trip module for multi-pole circuit breaker
US8035467B2 (en) * 2008-12-03 2011-10-11 Mittelstadt Chad R Add-on trip module for multi-pole circuit breaker
US8093964B2 (en) * 2008-12-29 2012-01-10 Schneider Electric USA, Inc. Add-on trip module for multi-pole circuit breaker
CN102339696B (zh) * 2010-07-15 2014-09-24 北京翠祥电器元件有限公司 具有选择性保护的断路器
US9396898B2 (en) * 2013-03-15 2016-07-19 Rockwell Automation Technologies, Inc. Multipole electromechanical switching device
KR101513207B1 (ko) * 2013-11-08 2015-04-17 엘에스산전 주식회사 전자접촉기
KR101741586B1 (ko) * 2014-10-31 2017-05-30 엘에스산전 주식회사 전자접촉기 크로스바 구조
DE112015005467T5 (de) * 2014-12-05 2017-08-17 Omron Corporation Elektromagnetisches Relais
JP2016110843A (ja) 2014-12-05 2016-06-20 オムロン株式会社 電磁継電器
JP6414453B2 (ja) 2014-12-05 2018-10-31 オムロン株式会社 電磁継電器
CN104576224B (zh) * 2014-12-29 2016-08-24 温州大学 带脱扣保险装置的永磁式接触器操动机构
DE102015204666A1 (de) * 2015-03-16 2016-09-22 Siemens Aktiengesellschaft Schaltanordnung für eine gasisolierte Schaltungsanlage und entsprechende Schaltungsanlage
US10134551B2 (en) * 2016-09-21 2018-11-20 Astronics Advanced Electronic Systems Corp. Galvanically isolated hybrid contactor
JP6260677B1 (ja) * 2016-12-02 2018-01-17 富士電機機器制御株式会社 電磁接触器
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DE102017220503B3 (de) * 2017-11-16 2019-01-17 Te Connectivity Germany Gmbh Doppelt unterbrechender Schalter
DE102020203056A1 (de) * 2020-03-10 2021-09-16 Te Connectivity Germany Gmbh Elektrische Schaltvorrichtung, insbesondere ein Stromschütz oder ein Relais, mit Kontaktierungselement und Befestigungselement

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Also Published As

Publication number Publication date
NO171526B (no) 1992-12-14
ATE82087T1 (de) 1992-11-15
ES2035843T3 (es) 1993-05-01
NO171526C (no) 1993-03-24
DK655388D0 (da) 1988-11-24
NO885256L (no) 1989-05-26
AU608488B2 (en) 1991-03-28
DE3782499D1 (en) 1992-12-10
BR8806185A (pt) 1989-08-15
NO885256D0 (no) 1988-11-24
CA1295358C (en) 1992-02-04
DK655388A (da) 1989-05-26
US4931757A (en) 1990-06-05
AU2499488A (en) 1989-05-25
CN1033337A (zh) 1989-06-07
EP0317660A1 (de) 1989-05-31

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