EP2259278B1 - Molded case multipole circuit breaker and kits of parts including said circuit breaker - Google Patents
Molded case multipole circuit breaker and kits of parts including said circuit breaker Download PDFInfo
- Publication number
- EP2259278B1 EP2259278B1 EP10176903A EP10176903A EP2259278B1 EP 2259278 B1 EP2259278 B1 EP 2259278B1 EP 10176903 A EP10176903 A EP 10176903A EP 10176903 A EP10176903 A EP 10176903A EP 2259278 B1 EP2259278 B1 EP 2259278B1
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- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- outer shell
- molded case
- opening
- side walls
- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/323—Latching movable parts mechanically for interlocking two or more relays
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- 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
- H01H71/1009—Interconnected mechanisms
- H01H71/1018—Interconnected mechanisms with only external interconnections
Definitions
- the object of the present invention is to provide a molded case multipole circuit breaker which is able to obviate the above-discussed drawbacks relative to the prior art.
- the Sw-sx circuit breaker comprises an outer shell 2 including a front wall 2a, on which a control lever L-sx, for the circuit breaker operation is provided, a pair of opposite side walls 2b, 2c, an upper side 2d, a lower side 2e, and a rear wall 2f ( Fig. 9 ) which is intended, in use, to be connected for example to a support plate (not shown).
- the Sw-dx circuit breaker comprises an outer shell 3 including a front wall 3a, on which a L-dx control lever analogue to L-sx is arranged, a pair of opposite side walls 3b, 3c, an upper side 3d, a lower side 3e, and a rear wall 3f ( Fig. 9 ) which is intended to be connected for example to a support plate (not shown).
- control levers L-sx, L-dx of the circuit breakers Sw-sx, Sw-dx are independently movable between a first activation position ON, corresponding to a closed state of the circuit breaker, and a second deactivation position OFF, corresponding to an open state of the circuit breaker.
- the interlock device 1 includes a box-shaped main shell 4 intended to be sandwiched between the side walls 2c and 3b of the outer shells 2, 3, which are mutually facing in the operative conditions of the device. Thereby, the interlock device 1 is arranged between the two circuit breakers Sw-sx, Sw-dx.
- the main shell 4 of the device 1 includes two opposite side faces (of which, only one, indicated with 5, is visible in Fig. 6 ) which operatively face the side walls 2c and 3b, respectively, of the circuit breakers Sw-sx, Sw-dx.
- the main shell 4 includes, particularly, a box-like portion 6 ( Fig. 5 ), and a front lid 7 ( Fig. 6 ) which is removably secured to the box-like portion, for example, by means of screws.
- the side face 5 is preferably defined by both the box-like portion 6 and the front lid 7 ( Fig. 6 ).
- the main shell 4 further has two communication openings 8, 9, each of which extends partially frontally on the front lid 7 and partially on a respective side face of the main shell 4.
- each of the portions of the two communication openings 8, 9 which frontally extend on the front lid 7, extends horizontally from the edge of the lid 7 towards a central vertical axis of the same lid 7.
- respective holes 17c, 17d are provided on the rotatable activation members 17a, 17b, which respectively face the bent slots 10, 11, inside which the pins 15, 16 are suitable to be fitted.
- each of the rotatable activation members can comprise a further hole intended to face a respective slot of the two slots optionally obtained on the side walls 2b, 3c of the outer shells 2, 3.
- the spring 18 has also the function of reducing the clearances which could be present between the tooth 13b and the second 16 control pin, when such pin 16 is in the upper operative position, and between the tooth 13a and the first 15 control pin when such pin is in the upper operative position, respectively.
- the spring 18 has, particularly, two elastic arms 19, 20 which are respectively supported by two spring positioning and support members 21, 22 which are provided in the main shell 4.
- the arms 19, 20 are suitable to be subjected to an upwardly flexure, under the action of the two teeth 13a, 13b, respectively, so that when the rocker 12 is in the first angular position ( Fig. 1 ), the arm 20 has stored the maximum elastic energy while the arm 19 is unloaded, and when the rocker 12 is in the second angular position ( Fig. 2 ), the conditions of the two arms are inverted relative to those previously described.
- centring means are provided which, in the exemplary case, are obtained by means of two tongues 25a, 25b which are projecting from the main shell 4 of the device 1.
- Such centring means are, particularly, suitable to engage in respective conjugated centring means respectively provided on the outer shells 2, 3 of the circuit breakers Sw-sx, Sw-dx.
- control pins 15, 16, when are in the lower operative position turn out to face respectively the front portions of the communication openings 8, 9. In fact, in such manner one can be sure that the circuit breakers installation and removal is always accomplished when these are in an open state (OFF).
- the spring 18, when present, is suitable to cooperate with the rocker 12 so as to bring it to and maintain it in an intermediate angular position between the first and second angular positions.
- the intermediate angular position is such as to prevent that, in the absence of the control pins 15, 16, rocker portions can assume positions corresponding to the communication openings 8, 9 front portions.
- the spring 18 promotes the coupling of the circuit breakers Sw-sx, Sw-dx to the interlock device 1, thus allowing having the front portions of the communication openings 8, 9 free from obstacles when the control pins 15, 16 are being inserted within the main shell 4.
- the circuit breaker will be accurately positioned relative to the device 1, by causing the centring tongue 25a ( Fig. 9 ) outwardly projecting from the main shell 4 to be engaged in the corresponding conjugated centring recess 25c ( Fig. 3 ) which is provided on the outer shell 2 of the circuit breaker Sw-sx.
- circuit breaker Sw-sx is secured to the support plate, for example, by means of screws.
- the first control pin 15 acts in a supporting relationship against the engagement surface 14a ( Fig. 7 ) of the tooth 13a of the rocker 12, in order to impart a clockwise rotation to the latter.
- the pin 16 moves through the bent slot 11 and the side portion of the communication opening 9 covering, in the exemplary case, a curvilinear path, for example corresponding to a circumference arc.
- the latter upon moving through the bent slot 10 and the communication opening 8 side portion, passes from the lower operative position to the upper operative position, thus giving the rocker a clockwise rotation until it reaches to the second angular position ( Fig. 2 ).
- a molded case multipole electrical circuit breaker Sw-sx including:
- the opening 10 which is provided on at least one of the opposite side walls 2b, 2c of the outer shell 2 of the circuit breaker is manufactured under the shape of a bent slot.
- this can be suitable to be coupled to a device which is different from the interlock device, such as, for example, an outer residual current protection unit.
- an outer residual current protection unit is put beside a side wall 2b, 2c of the molded case circuit breaker.
- the coupling of the outer residual current protection unit can be accomplished through coupling means that are intended to pass through the opening 10 which is provided on the outer shell 2 of the circuit breaker Sw-sx, so as to cooperate with the hole 17c which is provided on the rotatable activation member 17a.
- coupling means between the circuit breaker and the residual current protection unit can be implemented through a pin completely similar to the control pins 15, 16. In such manner, the residual current protection unit can operate an automatic opening of the multipole circuit breaker by means of such pin, following an intervention of the residual current protection, by directly acting on the rotatable activation member 17a through the pin 15, 16.
- the side arrangement of the interlock device and the ability thereof to laterally act with the respective circuit breakers allows avoiding the drawbacks of the "front” and “rear” interlock devices, thus allowing obtaining a kit of parts which is suitable to receive any utility, also a front utility, which is suitable to reduce the thickness dimension inside the electric panel, and which is relatively easy, both from the point of view of the components which are employed and the operation thereof.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
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- In the technical field of the industrial electrical apparatuses, it is known to use mechanical interlock devices that are associated with electrical circuit breakers, for example, in order to prevent an undesired simultaneous activation of two energy sources intended to operate in a mutually excluding manner (such as, for example, a primary source and an auxiliary source).
- Particularly, "front" interlock devices are known which are suitable to frontally act by mechanical interference with the front control levers of the electrical circuit breakers to be interlocked. However, such devices compromise the possibility to frontally apply front implements such as, for example, a motorization device to the circuit breakers.
- "Rear" interlock devices are further known which are intended to be mounted inside an electric panel or box at the back of the circuit breakers to be interlocked. However, such devices, while allowing the application of front implements to the circuit breakers, have other types of drawbacks. In fact, since they are located in the rear part of the electric panel, in which conductive electrical parts under tension are present, they have the main drawback to necessitate cutting out the voltage to the electric panel during the maintenance operations for the interlock devices. Furthermore, the "rear" interlock devices generally have a complex structure which is characterized by a high number of pieces, they occupy much room in the thickness of the electric panel, and require periodic adjustment operations.
- The object of the present invention is to provide a molded case multipole circuit breaker which is able to obviate the above-discussed drawbacks relative to the prior art.
- Such object is achieved by a molded case multipole circuit breaker as generally defined in the annexed
claim 1. - Advantageous embodiments of a molded case multipole circuit breaker according to the present invention are as defined in the annexed dependent claims.
- Further objects of the present invention are to provide kits of parts as defined in the
claims - Further characteristics and the advantages of the invention will be clear from the following detailed description, given only by way of non-limiting example, with reference to the annexed drawings, in which:
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Fig. 1 is a front perspective view of a kit of parts including a first and a second electrical circuit breakers, and an interlock device, where the kit of parts is shown in a first operative configuration; -
Fig. 2 is a front perspective view of the kit of parts ofFig. 1 in a second operative configuration; -
Fig. 3 is a perspective view of an electrical circuit breaker of the kit of parts ofFig. 1 , and of a component of the interlock device ofFig. 1 ; -
Fig. 4 is a perspective view of an inner member of the electrical circuit breakers ofFig. 1 which is coupled to the interlock device component represented inFig. 3 ; -
Fig. 5 is a perspective view of the kit of parts ofFig. 1 , in which one of the circuit breakers has been removed, and in which the interlock device is represented in a third configuration; -
Fig. 6 is a perspective view of the kit of parts ofFig. 5 , in which a first lid of the interlock device can be seen; -
Fig. 7 is a front perspective view of the interlock device ofFig. 1 , in which an additional component of such device is shown; -
Fig. 8 is a perspective view of the kit of parts ofFig. 1 , in which a second lid of the interlock device can be seen; -
Fig. 9 is a rear perspective view of the kit of parts ofFig. 1 . - In the following description, the terms "high", "low", "right", "left", "upper", "lower", "horizontal", "vertical", "clockwise", "counter clockwise" are referred to an observer of
Fig. 1 as presented and not being rotated in any manner. - With reference to the
Fig. 1 , a kit of parts is illustrated, which comprises: aninterlock device 1, a first Sw-sx and a second Sw-dx electrical circuit breakers. The circuit breakers are molded case multipole electrical circuit breakers which are intended to be installed on a support member, such as, for example, a respective insertion strip, or a support plate which is fixed or securable inside an electric panel, in order to be actuated in a mutually excluding manner. For example, the Sw-sx and Sw-dx electrical apparatuses functionally correspond to two separate sources, which are connected in parallel to a load, one of which is the primary source, and the other one is the auxiliary source which is provided so as to operate in the event of a failure or malfunction of the primary source. - The Sw-sx circuit breaker comprises an
outer shell 2 including afront wall 2a, on which a control lever L-sx, for the circuit breaker operation is provided, a pair ofopposite side walls upper side 2d, alower side 2e, and arear wall 2f (Fig. 9 ) which is intended, in use, to be connected for example to a support plate (not shown). - Similarly, the Sw-dx circuit breaker comprises an
outer shell 3 including afront wall 3a, on which a L-dx control lever analogue to L-sx is arranged, a pair ofopposite side walls upper side 3d, alower side 3e, and arear wall 3f (Fig. 9 ) which is intended to be connected for example to a support plate (not shown). - Particularly, the control levers L-sx, L-dx of the circuit breakers Sw-sx, Sw-dx are independently movable between a first activation position ON, corresponding to a closed state of the circuit breaker, and a second deactivation position OFF, corresponding to an open state of the circuit breaker.
- With reference to the
Fig. 6 , theinterlock device 1 includes a box-shapedmain shell 4 intended to be sandwiched between theside walls outer shells interlock device 1 is arranged between the two circuit breakers Sw-sx, Sw-dx. - The
main shell 4 of thedevice 1 includes two opposite side faces (of which, only one, indicated with 5, is visible inFig. 6 ) which operatively face theside walls - The
main shell 4 includes, particularly, a box-like portion 6 (Fig. 5 ), and a front lid 7 (Fig. 6 ) which is removably secured to the box-like portion, for example, by means of screws. In this case, theside face 5 is preferably defined by both the box-like portion 6 and the front lid 7 (Fig. 6 ). - The
main shell 4 further has two communication openings 8, 9, each of which extends partially frontally on thefront lid 7 and partially on a respective side face of themain shell 4. - Particularly, each of the portions of the two communication openings 8, 9 which frontally extend on the
front lid 7, extends horizontally from the edge of thelid 7 towards a central vertical axis of thesame lid 7. - The portions of the two communication openings 8, 9 which extend on the side faces of the
main shell 4 have, in the exemplary case, a generally enlarged shape which extends on the respective wall and, particularly, operatively face respectively two openings, preferably manufactured under the shape of twobent slots Figs. 1 and3 ) which are provided on theside walls outer shells slots side walls shells interlock device 1. - With reference to the
Fig. 1 , thedevice 1 comprises locking means which consist of, in the exemplary case, arocker 12 which is rotatable around a horizontal support pivot between a first (left) and a second (right) angular positions, which are distinct and predetermined. Particularly, the rocker includes twoteeth Fig. 7 ), respectively, the function of which will be explained herein below. - The
device 1 further comprises secondary control members consisting of a first 15 and a second 16 control pins in the currently preferred embodiment. Each of thecontrol pins rocker 12 in order to prevent to the circuit breakers Sw-sx, Sw-dx to be both in a closed state. - Particularly, the
control pins rocker 12, so that, when thefirst pin 15 is in the upper operative position (Fig. 2 ), the rocker and, consequently, thesecond pin 16, are in the second angular position and in the lower operative position, respectively. - On the other hand, when the
second pin 16 is in the upper operative position (Fig. 1 ), the rocker and, consequently, thefirst pin 15, are in the first angular position and in the lower operative position, respectively. - Particularly, each of the first 15 and the second 16 control pins is intended to be rotationally integral to a respective rotatable activation member or
contact carrier shaft Figs. 3 and4 ) located inside the shell of the first Sw-sx and the second Sw-dx circuit breakers. The rotatable activation members carry the movable electrical contacts for the switching of the circuit breakers between the closed state and the open state, and are actionable through the control levers L-sx, L-dx, respectively. - In the particular example considered herein,
respective holes rotatable activation members bent slots pins side walls outer shells - Furthermore, it is appropriate to notice that, by means of the
rotatable activation members - In accordance with an embodiment, the
device 1 can comprise positioning means of therocker 12. In the exemplary embodiment, such rocker positioning means comprise, particularly, a spring 18 (Fig. 7 ) which is suitable to cooperate with theteeth - In accordance with an embodiment, the
spring 18 has also the function of reducing the clearances which could be present between thetooth 13b and the second 16 control pin, whensuch pin 16 is in the upper operative position, and between thetooth 13a and the first 15 control pin when such pin is in the upper operative position, respectively. - In the exemplary embodiment, the
spring 18 has, particularly, twoelastic arms members main shell 4. - Particularly, the
arms teeth rocker 12 is in the first angular position (Fig. 1 ), thearm 20 has stored the maximum elastic energy while thearm 19 is unloaded, and when therocker 12 is in the second angular position (Fig. 2 ), the conditions of the two arms are inverted relative to those previously described. - With reference to
Fig. 8 , thedevice 1 comprises asecondary front lid 23, intended to be connected in an overlapped manner to the front lid 7 (Fig. 6 ) of themain shell 4, so as to cover the front portions, if present, of the communication openings 8, 9 (Fig. 6 ) and to prevent the access to the screws for the connection of thefront lid 7 to the box-like portion 6. Furthermore, each of thefront lid 7 and thesecondary front lid 23 has two opposite eyelets (particularly, only theeyelets 24 of thefront lid 7 inFig. 6 are visible), the eyelets being two by two aligned when the two lids are overlapped. This allows the insertion of a protective closing means, such as a wire with lead seal, through each pair of aligned eyelets. - Finally, in order to accurately position the
interlock device 1 relative to the circuit breakers Sw-sx, Sw-dx on themain shell 4 of thedevice 1, centring means are provided which, in the exemplary case, are obtained by means of twotongues main shell 4 of thedevice 1. Such centring means are, particularly, suitable to engage in respective conjugated centring means respectively provided on theouter shells - In the exemplary embodiment, such conjugated centring means are, particularly, two
centring recesses Fig. 9 or, with reference to therecess 25c, inFig. 3 . Optionally, two other centring recesses can respectively be obtained on theouter shells - The installation of the kit of parts Sw-sx, Sw-dx, 1, will be described herein below, with particular reference to the case in which such kit of parts is intended to be secured inside an electric panel by means of a support plate. Such support plate can be, for example, an inner panel provided in the electric panel, or a support plate which can be secured inside an electric panel, for example including coupling means to a DIN rail.
- Initially, the
main shell 4 of thedevice 1 is secured on the support plate (not shown). - Once the
main shell 4 has been secured, thefirst pin 15 is connected to the first circuit breaker Sw-sx by being inserted through thebent slot 10 in order to partially fit it inside thehole 17c (Fig. 3 ) provided on therotatable activation member 17a. - The assembly consisting of the circuit breaker Sw-sx and the
pin 15, after that the control lever L-sx has been brought in the OFF position so that thepin 15 results to be in the lower operative position, is made to slide laterally relative to the device 1 (the direction of the arrow S inFig. 6 ) so that theside wall 2c of the circuit breaker Sw-sx slides along the side face of the interlock devicemain shell 4 and, concomitantly, thepin 15 inserts through the front portion of the communication opening 8. - In this regard, it should be noticed that the control pins 15, 16, when are in the lower operative position, turn out to face respectively the front portions of the communication openings 8, 9. In fact, in such manner one can be sure that the circuit breakers installation and removal is always accomplished when these are in an open state (OFF).
- Furthermore, it should be noticed that when the control pins 15, 16 are in the lower operative position, the
spring 18, when present, is suitable to cooperate with therocker 12 so as to bring it to and maintain it in an intermediate angular position between the first and second angular positions. Particularly, the intermediate angular position is such as to prevent that, in the absence of the control pins 15, 16, rocker portions can assume positions corresponding to the communication openings 8, 9 front portions. In such manner, thespring 18 promotes the coupling of the circuit breakers Sw-sx, Sw-dx to theinterlock device 1, thus allowing having the front portions of the communication openings 8, 9 free from obstacles when the control pins 15, 16 are being inserted within themain shell 4. - Once the coupling of the circuit breaker Sw-sx to the
device 1 has been accomplished, the circuit breaker will be accurately positioned relative to thedevice 1, by causing thecentring tongue 25a (Fig. 9 ) outwardly projecting from themain shell 4 to be engaged in the correspondingconjugated centring recess 25c (Fig. 3 ) which is provided on theouter shell 2 of the circuit breaker Sw-sx. - Finally, the circuit breaker Sw-sx is secured to the support plate, for example, by means of screws.
- The installation of the circuit breaker Sw-dx is carried out in a similar manner as described for the circuit breaker Sw-sx, on the opposite side of the
main shell 4 ofdevice 1 relative to that of the circuit breaker Sw-sx. Particularly, in this case, the coupling between the circuit breaker Sw-dx and the interlock device is carried out by inserting first thesecond control pin 16 through thebent slot 11 and thehole 17d provided on therotatable activation member 17b (Fig. 4 ) of the circuit breaker Sw-dx, then by inserting thepin 16 coupled to the circuit breaker Sw-dx, through the communication opening 9 front portion. The relative positioning between the circuit breaker Sw-dx and thedevice 1 is then accomplished by engaging the projectingcentring tongue 25b (Fig. 9 ) in the correspondingconjugated centring recess 25d which is provided on theouter shell 3 of the circuit breaker Sw-dx. - In the end, the secondary
front lid 23 is connected to thefront lid 7 of themain shell 4. - The operation of the
device 1 is as follows. - Let's assume that the
device 1 is initially in the configuration inFig. 1 , in which the control members L-sx, L-dx are respectively in the OFF and ON positions, considering thefront lid 7 as being connected to the box-like portion 6. - In such configuration, the
rotatable activation member 17b of the circuit breaker Sw-dx results to be locked, in a manner known per se, so that thesecond control pin 16 also results to be locked in the upper operative position. - When the control lever Sw-sx is moved from the OFF position to the ON position, the
first control pin 15 acts in a supporting relationship against theengagement surface 14a (Fig. 7 ) of thetooth 13a of therocker 12, in order to impart a clockwise rotation to the latter. - However, such clockwise rotation is prevented by the
second control pin 16, which acts as an abutting member against thesecond engagement surface 14b belonging to therocker tooth 13b, so that thefirst control pin 15 is locked in the lower operative position and, consequently, the control lever L-sx remains locked in the OFF position. - In order to unlock the
rotatable activation member 17b of the circuit breaker Sw-dx, it is necessary to act upon the control lever L-dx, for example, manually, by bringing it from the ON position to the OFF position. - This movement of the control lever L-dx results, by means of the
rotatable activation member 17b, in thesecond control pin 16 being moved from the upper operative position to the lower operative position. - Particularly, the
pin 16 moves through thebent slot 11 and the side portion of the communication opening 9 covering, in the exemplary case, a curvilinear path, for example corresponding to a circumference arc. - On the basis of what has been described above, it should be understood that, once the control lever L-dx has been moved to the OFF position, the clockwise rotation of the
rocker 12 is no more opposed by thecontrol pin 16. - Thus, the control lever L-sx can be moved from the OFF position to the ON position by actuating the
rotatable activation member 17a of the circuit breaker Sw-sx and, consequently, thecontrol pin 15. - Particularly, the latter, upon moving through the
bent slot 10 and the communication opening 8 side portion, passes from the lower operative position to the upper operative position, thus giving the rocker a clockwise rotation until it reaches to the second angular position (Fig. 2 ). - Starting from the latter configuration, in order to bring the control lever L-dx from the OFF position to the ON position, it is necessary to proceed in the reverse manner as that described above.
- Particularly, in this case, in order to allow for the counter-clockwise rotation of the
rocker 12, it is necessary to act upon the control lever L-sx of the circuit breaker Sw-sx by bringing it from the ON position to the OFF position. In such manner, in fact, therotatable activation member 17a is unlocked and, consequently, thefirst control pin 15, which passes from the upper operative position to the lower operative position. - Once such configuration has been achieved, where the control levers L-sx, L-dx of the circuit breakers are both in the OFF position, it is therefore possible to bring the control lever L-dx to the ON position. During such movement, the
second control pin 16 moves, particularly, from the lower operative position to the upper operative position while acting in a supporting relationship against theengagement surface 14b of thetooth 13b, so as to give the rocker a counter-clockwise rotation, until it achieves the first angular position (Fig. 1 ). - It should be understood that variations and/or additions are contemplated to what has been described and illustrated above.
- Finally, it is suitable to point out that, in accordance with the present invention, a molded case multipole electrical circuit breaker Sw-sx is provided, including:
- an
outer shell 2 comprising afront wall 2a on which a primary control member L-sx is provided which is movable between an activation position ON and a deactivation position OFF of the circuit breaker, a pair ofopposite side walls upper side 2d, alower side 2e, and arear wall 2f intended to be connected to a support member; - an
opening 10 on at least one of theopposite side walls outer shell 2; and - a
rotatable activation member 17a arranged internally relative to theouter shell 2 and carrying the electrical contacts for the switching of the circuit breaker between a closed state and an open state, where such rotatable activation member includes at least onehole 17c facing theopening 10 provided on at least one of theopposite side walls outer shell 2. - Particularly, the
opening 10 which is provided on at least one of theopposite side walls outer shell 2 of the circuit breaker is manufactured under the shape of a bent slot. - According to a further embodiment of the molded case multipole electrical circuit breaker, this can include at least one
centring recess 25c on the respectiveouter shell 2. - Finally, according to a further embodiment of the molded case multipole electrical circuit breaker, this can be suitable to be coupled to a device which is different from the interlock device, such as, for example, an outer residual current protection unit. Such residual current protection unit is put beside a
side wall opening 10 which is provided on theouter shell 2 of the circuit breaker Sw-sx, so as to cooperate with thehole 17c which is provided on therotatable activation member 17a. It should be noticed that such coupling means between the circuit breaker and the residual current protection unit can be implemented through a pin completely similar to the control pins 15, 16. In such manner, the residual current protection unit can operate an automatic opening of the multipole circuit breaker by means of such pin, following an intervention of the residual current protection, by directly acting on therotatable activation member 17a through thepin - In view of what has been described above, it is therefore possible to understand how a molded case multipole circuit breaker according to the present invention is such as to solve the above-mentioned drawbacks with reference to the prior art.
- Particularly, the side arrangement of the interlock device and the ability thereof to laterally act with the respective circuit breakers allows avoiding the drawbacks of the "front" and "rear" interlock devices, thus allowing obtaining a kit of parts which is suitable to receive any utility, also a front utility, which is suitable to reduce the thickness dimension inside the electric panel, and which is relatively easy, both from the point of view of the components which are employed and the operation thereof.
- The principle of the invention being understood, the embodiments and implementation details may be widely varied relative to what has been described and illustrated herein by way of non-limiting example only, without thereby departing from the scope of the invention as defined in the annexed claims.
Claims (5)
- A molded case multipole electrical circuit breaker (Sw-sx), including an outer shell (2) comprising a front wall (2a) on which a primary control member (L-sx) is provided which is movable between an activation position (ON) and a deactivation position (OFF) of the circuit breaker, a pair of opposite side walls (2b, 2c), an upper side (2d), a lower side (2e), and a rear wall (2f) intended to be connected to a support member,
the circuit breaker further including:- an opening (10) on at least one of said opposite side walls (2b, 2c); and- a rotatable activation member (17a) which is arranged internally to the outer shell (2), the rotatable activation member including at least one hole (17c) facing said opening (10);characterized in that:- said rotatable activation member carries electrical contacts for the switching of the circuit breaker between a closed state and an open state; and- said opening (10) provided on at least one of said opposite side walls (2b, 2c) of the circuit breaker outer shell (2) is a bent slot. - The molded case multipole electrical circuit breaker (Sw-sx) according to claim 1, including at least one centring recess (25c) on said outer shell (2).
- The molded case multipole electrical circuit breaker according to anyone of claims 1 or 2, adapted to be coupled to an outer residual current protection unit through coupling means which are intended to pass through said opening (10) in order to cooperate with said hole (17c).
- A kit of parts (1, Sw-sx, Sw-dx) including a first and second molded case electrical circuit breaker (Sw-sx, Sw-dx) as defined in anyone of the preceding claims, and an interlock device (1) suitable for cooperating with said circuit breakers (Sw-sx, Sw-dx) to prevent such circuit breakers (Sw-sx, Sw-dx) from being both in a closed state.
- A kit of parts including a molded case electrical circuit breaker (Sw-sx) as defined in anyone of claims 1 to 3, a residual current protection unit and coupling means for coupling said protection unit to said circuit breaker (Sw-sx), the coupling means being intended to pass through said opening (10) which is provided on the outer shell (2) of the circuit breaker (Sw-sx).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL10176903T PL2259278T3 (en) | 2007-12-21 | 2007-12-21 | Molded case multipole circuit breaker and kits of parts including said circuit breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07425812A EP2073231B1 (en) | 2007-12-21 | 2007-12-21 | Interlock device for electrical circuit breakers, kit of parts including such device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07425812.0 Division | 2007-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2259278A1 EP2259278A1 (en) | 2010-12-08 |
EP2259278B1 true EP2259278B1 (en) | 2011-08-03 |
Family
ID=39381902
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07425812A Active EP2073231B1 (en) | 2007-12-21 | 2007-12-21 | Interlock device for electrical circuit breakers, kit of parts including such device |
EP10176903A Active EP2259278B1 (en) | 2007-12-21 | 2007-12-21 | Molded case multipole circuit breaker and kits of parts including said circuit breaker |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07425812A Active EP2073231B1 (en) | 2007-12-21 | 2007-12-21 | Interlock device for electrical circuit breakers, kit of parts including such device |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP2073231B1 (en) |
CN (1) | CN101903964B (en) |
AT (2) | ATE519211T1 (en) |
DE (1) | DE602007010496D1 (en) |
ES (2) | ES2356152T3 (en) |
PL (2) | PL2259278T3 (en) |
RU (1) | RU2467424C2 (en) |
WO (1) | WO2009080442A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1398379B1 (en) * | 2010-02-23 | 2013-02-22 | Bticino Spa | INTERLOCK DEVICE TO INTERLOCK AT LEAST ONE FIRST AND ONE SECOND ELECTRIC SWITCH. |
US8704114B2 (en) * | 2011-05-05 | 2014-04-22 | General Electric Company | Interlocked circuit breakers |
CN103050305B (en) * | 2011-10-12 | 2015-01-21 | 上海电科电器科技有限公司 | Interlocking device of change-over switch |
WO2013071971A1 (en) * | 2011-11-17 | 2013-05-23 | Abb Ab | An interlocking mechanism for switching devices |
FR3054925B1 (en) * | 2016-08-02 | 2020-05-15 | Socomec | CONTROL MODULE FOR MODULAR ELECTRICAL SWITCHING APPARATUS AND OBTAINED MODULAR ELECTRICAL SWITCHING APPARATUS |
TWI603362B (en) * | 2016-10-28 | 2017-10-21 | 陳錫瑜 | Interlocking device for switch safety locks |
WO2018188067A1 (en) * | 2017-04-14 | 2018-10-18 | 陈锡瑜 | Interlocking device between electrical switches |
CN108615629B (en) * | 2018-06-25 | 2019-06-07 | 浙江大江电气有限公司 | A kind of interlock of electric circuit breaker |
FR3118838A1 (en) * | 2021-01-08 | 2022-07-15 | Schneider Electric Industries Sas | Locking device for an electrical panel |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2951356C2 (en) * | 1979-12-20 | 1985-05-09 | Brown, Boveri & Cie Ag, 6800 Mannheim | Device for mechanical switch-on blocking of one of two switching elements as long as the other switching element is in the switched-on position |
SU1698909A1 (en) * | 1988-09-26 | 1991-12-15 | Специальное Конструкторско-Технологическое Бюро Низковольтной Аппаратуры Производственного Объединения "Севкавэлектроаппарат" | Mechanical interlocking device for reversing contactors |
FR2643190B1 (en) * | 1989-02-16 | 1996-04-26 | Merlin Gerin | MODULE FOR INTERLOCKING TWO ELECTRICAL DEVICES WITH MINIATURE MOLDED HOUSING |
CN2530335Y (en) * | 2002-05-24 | 2003-01-08 | 北京未来之路科技有限公司 | Double mains automatic switchover gear with mechanical mutual locking structure |
US6617533B1 (en) * | 2002-09-20 | 2003-09-09 | Siemens Energy & Automation, Inc. | Interlock for a circuit breaker |
KR100480388B1 (en) * | 2002-10-14 | 2005-04-07 | 엘지산전 주식회사 | Mechanical interlock device for prevention of closing the same time between two 3-position mechanism |
RU2310251C1 (en) * | 2006-02-28 | 2007-11-10 | Общество с ограниченной ответственностью "Лидер" | Interlocking device |
CN2922089Y (en) * | 2006-05-25 | 2007-07-11 | 武汉普天通信设备集团有限公司 | Switch inter-locking device used for Micro circuit breaker |
-
2007
- 2007-12-21 PL PL10176903T patent/PL2259278T3/en unknown
- 2007-12-21 AT AT10176903T patent/ATE519211T1/en not_active IP Right Cessation
- 2007-12-21 DE DE602007010496T patent/DE602007010496D1/en active Active
- 2007-12-21 AT AT07425812T patent/ATE488019T1/en not_active IP Right Cessation
- 2007-12-21 ES ES07425812T patent/ES2356152T3/en active Active
- 2007-12-21 PL PL07425812T patent/PL2073231T3/en unknown
- 2007-12-21 ES ES10176903T patent/ES2370696T3/en active Active
- 2007-12-21 EP EP07425812A patent/EP2073231B1/en active Active
- 2007-12-21 EP EP10176903A patent/EP2259278B1/en active Active
-
2008
- 2008-11-27 CN CN2008801214867A patent/CN101903964B/en active Active
- 2008-11-27 WO PCT/EP2008/066362 patent/WO2009080442A1/en active Application Filing
- 2008-11-27 RU RU2010130305/07A patent/RU2467424C2/en active
Also Published As
Publication number | Publication date |
---|---|
EP2073231A1 (en) | 2009-06-24 |
PL2259278T3 (en) | 2011-12-30 |
RU2467424C2 (en) | 2012-11-20 |
DE602007010496D1 (en) | 2010-12-23 |
ES2356152T3 (en) | 2011-04-05 |
EP2073231B1 (en) | 2010-11-10 |
CN101903964B (en) | 2013-08-07 |
ATE519211T1 (en) | 2011-08-15 |
ATE488019T1 (en) | 2010-11-15 |
WO2009080442A1 (en) | 2009-07-02 |
EP2259278A1 (en) | 2010-12-08 |
RU2010130305A (en) | 2012-01-27 |
PL2073231T3 (en) | 2011-04-29 |
ES2370696T3 (en) | 2011-12-21 |
CN101903964A (en) | 2010-12-01 |
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