CN215869226U

CN215869226U - Circuit breaker

Info

Publication number: CN215869226U
Application number: CN202121344995.5U
Authority: CN
Inventors: 杨安; 卢科军; 顾斌斌
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-02-18
Anticipated expiration: 2031-06-17

Abstract

The utility model provides a circuit breaker, includes the shell be provided with operating device in the shell operating device's one side is provided with electrical operation mechanism, operating device includes the linkage, and electrical operation mechanism includes output gear, the linkage is provided with linkage structure with the coaxial pivot assembly of output gear between linkage and output gear, linkage structure includes combined floodgate portion, separating brake portion and cooperation portion, the original position of cooperation position between combined floodgate portion and separating brake portion, cooperation portion lean on the cooperation with combined floodgate portion, separating brake portion respectively through the swing and lean on the cooperation in order to drive the automatic separating brake of circuit breaker to closing floodgate, separating brake finish the back, cooperation portion pendulum to original position. The matching part of the automatic opening and closing device is respectively and directly abutted against the closing part and the opening part to drive the circuit breaker to automatically open and close, so that the defect of excessive power transmission loss is avoided, and the space occupied by the linkage structure is reduced.

Description

Circuit breaker

Technical Field

The utility model relates to the field of low-voltage electrical appliances, in particular to a circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying and breaking a current under a normal circuit condition and closing, carrying and breaking a current under an abnormal circuit condition within a prescribed time, and is generally classified into a plug-in type, a fixed type and a drawer type circuit breaker according to its installation manner.

At present, the plug-in circuit breaker who has automatic reclosing function in the market carries out the transmission through rocker or push rod between its electricity behaviour mechanism and the operating device, and transmission mode can inevitable loss transmission power like this, can also occupy too much inner space moreover, is unfavorable for the miniaturization of circuit breaker, intelligent development.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a circuit breaker which is simple in structure, small in transmission power loss and small in occupied space.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a circuit breaker, includes the shell be provided with operating device in the shell operating device's one side is provided with electrical operation mechanism, operating device includes the linkage, and electrical operation mechanism includes output gear, the linkage is provided with linkage structure with the coaxial pivot assembly of output gear between linkage and output gear, linkage structure includes combined floodgate portion, separating brake portion and cooperation portion, the original position of cooperation position between combined floodgate portion and separating brake portion, cooperation portion lean on the cooperation with combined floodgate portion and separating brake portion respectively through the swing and drive the automatic separating brake that closes of circuit breaker to after combined floodgate or separating brake finishes, cooperation portion pendulum to original position.

Furthermore, two boss structures which are respectively used as a switching-on part and a switching-off part are convexly arranged on one side of the linkage piece facing the output gear, and a boss structure which is used as a matching part is convexly arranged on one side of the output gear facing the linkage piece.

Furthermore, the closing part and the opening part are arranged at intervals along the circumferential direction of the output gear, the side surface of the closing part facing one side of the opening part is used as a closing surface, and the side surface of the opening part facing one side of the closing part is used as an opening surface; the side surface of one side of the matching part facing the closing part is a first matching surface, and the side surface of one side of the matching part facing the opening part is a second matching surface.

Further, a sector-shaped space between the closing part and the opening part is used as a matching space, and the central angle of the matching space is smaller than 180 degrees.

Further, the electric operating mechanism further comprises a motor and a gear set, the motor is vertically arranged on one side of the operating mechanism along the thickness direction of the shell, the motor is in driving connection with the control circuit board, the output end of the motor is in driving connection with the output gear through the gear set, and the gear set comprises a plurality of gears which are arranged in a stacked mode.

Furthermore, the operating mechanism further comprises a supporting piece, a jump buckle, a lock catch, a first connecting rod and a second connecting rod, wherein the supporting piece is rotatably assembled on one side of the linkage piece, the jump buckle and the lock catch are rotatably assembled on the supporting piece, the jump buckle is in snap fit with one end of the lock catch, the jump buckle is linked with the linkage piece through the first connecting rod, and the second connecting rod is connected between the supporting piece and a moving contact of the contact mechanism.

Further, one side of the linkage piece facing the shell is provided with a mounting groove, and a return spring is assembled in the mounting groove.

And further, one end of the shell is provided with a button mechanism, the button mechanism and the electric operation mechanism are positioned on two sides of the operating mechanism, and one end of the button mechanism extending into the shell is connected with the linkage piece through a third connecting rod in a linkage manner.

Furthermore, the two opposite ends of the shell are respectively used as a first wiring end and a second wiring end, the first wiring end is provided with a first wiring port and a button hole, the first wiring port is correspondingly provided with a first wiring terminal, the button hole is internally provided with a button mechanism in a sliding manner, the second wiring port is provided with a second wiring port, and the second wiring port is internally provided with a second wiring terminal which can be connected with an external lead in a plugging manner.

Further, the control circuit board is arranged between the electric operating mechanism and the operating mechanism in a stacked mode.

Compared with the existing transmission mode of performing transmission through a rocker arm or a push rod, the matching part of the utility model directly abuts against the switching-on part and the switching-off part respectively to drive the breaker to perform automatic switching-on and switching-off, thereby avoiding the defect of excessive power transmission loss.

In addition, the motor sets up perpendicularly along the thickness direction of circuit breaker, and the range upon range of setting of gear train is between motor and output gear, avoids the too much horizontal space of circuit breaker, has optimized inside overall arrangement.

Drawings

Figure 1 is an external schematic view of a circuit breaker of the present invention;

fig. 2 is a schematic structural diagram of an electric operating mechanism, an operating mechanism and a control circuit board in the circuit breaker of the present invention;

fig. 3 is a schematic structural diagram of a button mechanism, an operating mechanism and an electric operating mechanism in the circuit breaker of the present invention;

fig. 4 is a schematic structural diagram of an operating mechanism and an electric operating mechanism in a circuit breaker according to the present invention (the mating portion is in the original position);

fig. 5 is a schematic structural diagram of an operating mechanism and an electric operating mechanism in a circuit breaker according to the present invention (the mating portion is located at the closing position);

fig. 6 is a schematic structural diagram of an operating mechanism and an electric operating mechanism in a circuit breaker according to the present invention (the mating portion is located at the opening position);

fig. 7 is a schematic diagram of the positions of the operating mechanism, the electric operating mechanism and the control circuit board in the circuit breaker of the present invention;

fig. 8 is a schematic view of the position of the operating mechanism and the electrically operated mechanism in a circuit breaker according to the present invention;

figure 9 is a schematic view of the cooperation of a first linkage arrangement in a circuit breaker of the present invention;

fig. 10 is a schematic view of an output gear in a circuit breaker according to the present invention;

fig. 11 is a schematic view of the second linkage structure of the circuit breaker of the present invention.

Detailed Description

The following describes a circuit breaker according to an embodiment of the present invention with reference to fig. 1 to 11. A circuit breaker of the present invention is not limited to the description of the following embodiments.

The utility model provides a circuit breaker, includes shell 1 be provided with operating device 3 in the shell 1 operating device 3's one side is provided with by control scheme board 4 driven electric operator 2, operating device 3 includes linkage 31, and electric operator 2 includes output gear 22, linkage 31 and the coaxial pivot assembly of output gear 22 are provided with linkage structure between linkage 31 and output gear 22, linkage structure includes closing part 311, separating brake part 312 and cooperation portion 221, cooperation portion 221 is located the primary importance between closing part 311 and separating brake part 312, and cooperation portion 221 supports with closing part 311 and separating brake part 312 respectively through the swing and leans on the cooperation in order to drive the automatic switching on and switching off of circuit breaker to after closing or separating brake finishes, cooperation portion 221 swings back to primary importance.

Compared with the existing transmission mode of performing transmission through a rocker arm or a push rod, the matching part 221 of the utility model directly abuts against the closing part 311 and the opening part 312 respectively to drive the breaker to perform automatic opening and closing, so that the defect of excessive power transmission loss is avoided, and in addition, the matching part 221, the closing part 311 and the opening part 312 are arranged between the output gear 22 and the linkage piece 31 which are coaxially assembled as a linkage structure, so that the space occupied by the linkage structure is reduced.

An embodiment of a circuit breaker is provided with reference to fig. 1 to 10, where the circuit breaker of this embodiment is a plug-in circuit breaker, the plug-in circuit breaker includes a housing 1, two opposite ends of the housing 1 are respectively used as a first terminal and a second terminal, the first terminal is provided with a first connection port and a button hole, the first connection port is correspondingly provided with a first connection terminal, one side of the first connection port is provided with a button hole, a button mechanism 5 is slidably mounted in the button hole, the second terminal is provided with a second connection port, the second connection port adopts a socket structure, the second connection port is provided with a second connection terminal that can be plugged into or pulled out from an external wire, an operating mechanism 3, a contact mechanism and an arc extinguishing chamber are provided in the housing 1 between the first connection terminal and the second connection terminal, a support 32 of the operating mechanism 3 is connected with a movable contact 6 of the contact mechanism, the arc extinguishing chamber is arranged on one side of the contact mechanism, and electric arcs generated when the contact mechanism is broken are led into the arc extinguishing chamber to be extinguished.

Specifically, as shown in fig. 3, the button mechanism 5 includes a button member 51, a fourth link 54, a connecting member 52 and a third link 53, the button member 51 is in sliding fit with the housing 1, and one end of the button member 51 extending into the housing 1 is in linkage connection with the fourth link 54, the connecting member 52 and the third link 53 in sequence; as another embodiment, the button member 51, the fourth link 54 and the connecting member 52 may be a unitary structure. The operating mechanism 3 comprises a linkage piece 31, a support piece 32, a trip 33, a lock catch 34, a first connecting rod 35 and a second connecting rod 36, wherein the support piece 32 is rotatably assembled in the middle of the shell 1, the linkage piece 31 is rotatably assembled between the support piece 32 and the button mechanism 5, one end of the button mechanism 5 extending into the shell 1 is connected with the linkage piece 31 through a third connecting rod 53, the trip 33 and the lock catch 34 are rotatably assembled on the support piece 32, the trip 33 is in snap fit with one end of the lock catch 34, the linkage piece 31 is in linkage connection with the trip 33 through the first connecting rod 35, and the second connecting rod 36 is connected with one end of the support piece 32 far away from the button mechanism 5 and is used for linkage with the movable contact 6 of the contact mechanism. Further, a return spring 313 (see fig. 7 and 8) is arranged on the linkage member 31, the return spring 313 is used for returning the linkage member 31 after the brake is opened, preferably, a mounting groove is arranged on one side of the linkage member 31 facing the housing 1, the return spring 313 is a torsion spring assembled in the mounting groove, and two elastic arms of the torsion spring are used for returning the linkage member 31 by matching with the mounting groove and the housing 1.

As shown in fig. 2-8, an electric operating mechanism 2 is disposed on one side of the operating mechanism 3, preferably, the electric operating mechanism 2 and the button mechanism 5 are disposed on two sides of the operating mechanism 3, the electric operating mechanism 2 is connected to a control circuit board 4 of the circuit breaker, the electric operating mechanism 2 is driven by the control circuit board 4 to rotate in forward and reverse directions, and the electric operating mechanism 2 is linked with the operating mechanism 3 for driving the circuit breaker to perform automatic switching on and off.

Specifically, the electric operating mechanism 2 includes an output gear 22 coaxially and pivotally assembled with the linkage member 31, a linkage structure capable of being directly abutted is arranged between the output gear 22 and the linkage member 31, the linkage structure includes a closing portion 311, an opening portion 312 and a matching portion 221, the matching of the matching portion 221 and the closing portion 311 and the opening portion 312 has three position relations, when the matching portion 221 is at an original position, as shown in fig. 4, the matching portion 221 is located between the closing portion 311 and the opening portion 312, and the matching portion 221 is not in contact with the closing portion 311 and the opening portion 312; when the electric operating mechanism 2 drives the circuit breaker to automatically close, as shown in fig. 5, the matching portion 221 swings from the original position to the closing position, that is, the matching portion 221 abuts against the closing portion 311, and after the matching portion 221 pushes the closing portion 311 to complete the closing action, the matching portion 221 swings back to the original position, so as to avoid interfering with the opening action of the circuit breaker; when the operating mechanism 3 drives the circuit breaker to automatically open the brake, as shown in fig. 6, the engaging portion 221 swings from the original position to the open position, that is, the engaging portion 221 abuts against the open portion 312, and the engaging portion 221 pushes the open portion 312 to complete the opening operation and then returns to the original position.

The electric operating mechanism 2 comprises a motor 21, an output gear 22 and a gear set 23, the motor 21 is connected with a control circuit board 4 of the circuit breaker, the output gear 22 is assembled with a linkage piece 31 of the operating mechanism 3 in a coaxial pivoting mode, the gear set 23 is connected between an output end of the motor 21 and the output gear 22 in a meshing mode, in the embodiment, the motor 21 is vertically arranged on one side of the operating mechanism 3 in the thickness direction of the shell 1, the gear set 23 comprises a plurality of gears which are arranged in a stacking mode and are connected in a meshing mode, and the electric operating mechanism 2 is prevented from occupying too much transverse space due to the arrangement. As shown in fig. 3 and 7, the control circuit board 4 for controlling the electric operating mechanism 2 is stacked along one side of the housing 1, preferably, the control circuit board 4 is located between the electric operating mechanism 2 and the operating mechanism 3, and a microcontroller is disposed on the control circuit board 4 and capable of sending a control command, wherein the control command is used for starting and stopping the motor 21 and driving the motor 21 to rotate forward or backward. Further, an indicating device for feeding back the state of the linkage structure is arranged on the control circuit board 4, the control circuit board 4 is located between the output gear 22 and the gear set 23, the indicating device is located on one side of the control circuit board 4 opposite to the output gear 22, the indicating device comprises a microswitch or a spring plate structure and the like arranged on the control circuit board 4, the microswitch cabinet or the spring plate structure and the like respectively correspond to the original position, the opening position and the closing position of the linkage structure, a triggering part is arranged on the output gear 22, when the output gear 22 rotates to the corresponding position, the microswitch or the spring plate structure is triggered by the output gear 22 to output a feedback signal to the microcontroller, and the microcontroller controls the motor 21 according to the feedback signal.

In addition, when the circuit breaker is a multi-pole circuit breaker, it is preferable to set the electric operating mechanism 2 and the control circuit board 4 between two adjacent circuit breaker poles, and to provide an avoiding groove on the partition plate 11 (see fig. 7) or the circuit breaker pole housing 1 that separates the two circuit breaker poles, the avoiding groove is used for the linkage structure to pass through, and it is preferable to provide an accommodating groove for accommodating the electric operating mechanism 2 in the partition plate 11 or the circuit breaker pole housing 1, and the output gear 22 and the linkage member 31 can be separated by the groove wall of the accommodating groove, and the output gear 22 and the linkage member 31 are prevented from contacting each other in other regions except the linkage structure, and of course, it is also equally possible to assemble the electric operating mechanism 2 and the control circuit board 4 with the operating mechanism 3 in the same circuit breaker pole.

A first linkage structure of the present embodiment is provided with reference to fig. 7-10, where the closing portion 311 and the opening portion 312 are disposed on a side of the link 31 facing the output gear 22, the matching portion 221 is disposed on a side facing the link 31, preferably, the closing portion 311, the opening portion 312 and the matching portion 221 are in a boss structure, the closing portion 311 and the opening portion 312 are disposed at an interval along a circumferential direction of the output gear 22, a side of the closing portion 311 facing the opening portion 312 is a closing surface 3111, a side of the opening portion 312 facing the closing portion 311 is a opening surface 3121, a sector space between the closing portion 311 and the opening portion 312 is a matching space, a central angle of the matching space is less than 180 °, the matching portion 221 can swing in the matching space, and an arc-shaped trajectory groove for sliding matching with the matching portion 221 can be disposed in the matching space; the side surface of the matching part 221 facing the closing part 311 is a first matching surface 2211, the side surface of the matching part 221 facing the opening part 312 is a second matching surface 2212, the side wall between the first matching surface 2211 and the second matching surface 2212 is set to be a step surface, the step surface enables the matching part 221 to be in a step structure with different thicknesses, the thinner end of the matching part 221 is used for matching with the closing part 311 and the opening part 312, and the linkage structure is prevented from occupying a larger space when being matched.

When the circuit breaker needs to be switched on, when the electric operating mechanism 2 is driven to rotate in the forward direction, in fig. 5, the output gear 22 rotates clockwise to enable the first matching surface 2211 of the matching portion 221 to be attached to the switching-on surface 3111, and then the switching-on portion 311 is pushed to rotate clockwise until the circuit breaker is switched on (see fig. 6), then the electric operating mechanism 2 is driven to rotate in the reverse direction, the output gear 22 rotates counterclockwise, and the first matching surface 2211 and the switching-on surface 3111 are gradually separated until the matching portion 221 returns to the original position; when the circuit breaker needs to be opened, the electric operating mechanism 2 is driven to rotate in a reverse direction, the output gear 22 rotates anticlockwise in fig. 5 to enable the second matching surface 2212 of the matching portion 221 to be attached to the opening surface 3121, then the opening portion 312 is pushed to rotate anticlockwise, after the circuit breaker is opened in place (see fig. 7), the electric operating mechanism 2 is driven to rotate in a forward direction, the output gear 22 rotates clockwise, and the second matching surface 2212 is gradually separated from the opening surface 3121 until the matching portion 221 returns to the original position.

Of course, the engagement portion 221 is provided in the link 31, the closing portion 311 and the opening portion 312 are provided in the output gear 22, and the rotation of the output gear 22 causes the closing portion 311 and the opening portion 312 to engage with the engagement portion 221.

The second linkage structure of this embodiment is provided, the closing portion 311 and the opening portion 312 are disposed on one side of the linkage member 31 facing the output gear 22, the matching portion 221 is disposed on one side of the output gear 22 facing the linkage member 31, specifically, one section of arc-shaped groove is disposed on one side of the linkage member 31 facing the output gear 22, an arc-shaped track of the arc-shaped groove and an arc-shaped track of the linkage member 31 rotating are concentric, a central angle of the arc-shaped groove is preferably smaller than 180 °, two ends of the arc-shaped groove are respectively used as the closing portion 311 and the opening portion 312, the matching portion 221 is preferably a boss structure in sliding fit with the arc-shaped groove, a side surface of the matching portion 221 facing the closing portion 311 is a first matching surface 2211, and a side surface of the matching portion 221 facing the opening portion 312 is a second matching surface 2212.

When the circuit breaker needs to be switched on, when the electric operating mechanism 2 is driven to rotate in the forward direction, the output gear 22 rotates clockwise to enable the first matching surface 2211 of the matching part 221 to abut against one end serving as the switching-on part 311 to push the circuit breaker to be switched on in place, and then the electric operating mechanism 2 is driven to rotate in the reverse direction to enable the matching part 221 to return to the original position; when the circuit breaker needs to be opened, the electric operating mechanism 2 is driven to rotate in the reverse direction, the output gear 22 rotates counterclockwise to enable the second matching surface 2212 of the matching portion 221 to abut against one end serving as the opening portion 312 to push the circuit breaker to be opened in place, then, the electric operating mechanism 2 is driven to rotate in the forward direction, at the moment, the output gear 22 rotates clockwise, and the second matching surface 2212 and the opening surface 3121 are gradually separated until the matching portion 221 restores to the original position.

Of course, as shown in fig. 11, the second linkage structure of this embodiment may also be configured such that an arc-shaped groove is disposed on one side of the output gear 22 facing the linkage 31, an arc-shaped track of the arc-shaped groove is concentric with an arc-shaped track of the output gear 22, two ends of the arc-shaped groove are respectively used as the closing portion 311 and the opening portion 312, and the matching portion 221 is slidably matched with the arc-shaped groove and disposed on one side of the linkage 31 facing the output gear 22.

In addition, a short-circuit protection mechanism and/or an overload protection mechanism (not shown) may be further disposed in the housing 1, the short-circuit protection mechanism is disposed at one side of the operating mechanism 3, the short-circuit protection mechanism includes a solenoid coil and a movable iron core driven by the solenoid coil, one end of the movable iron core is opposite to the latch 34 of the operating mechanism 3, and when a short-circuit fault occurs, the movable iron core triggers the latch 34 to trip the operating mechanism 3; the overload protection mechanism comprises a bimetallic strip, the movable end of the bimetallic strip is opposite to the lock catch 34 of the operating mechanism 3, when overload faults occur, the bimetallic strip is heated and bent to trigger the lock catch 34, the operating mechanism 3 is tripped, and when the short-circuit protection mechanism and the overload protection mechanism are arranged at the same time, the short-circuit protection mechanism and the overload protection mechanism are preferably located on two sides of the operating mechanism 3.

The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims

1. A circuit breaker comprises a shell (1), wherein an operating mechanism (3) is arranged in the shell (1), an electric operating mechanism (2) is arranged on one side of the operating mechanism (3), the operating mechanism (3) comprises a linkage piece (31), and the electric operating mechanism (2) comprises an output gear (22), and is characterized in that: the linkage piece (31) and the output gear (22) are assembled in a coaxial pivoting mode, a linkage structure is arranged between the linkage piece (31) and the output gear (22) and comprises a closing part (311), a separating part (312) and a matching part (221), the matching part (221) is located at an original position between the closing part (311) and the separating part (312), the matching part (221) is abutted against and matched with the closing part (311) and the separating part (312) through swinging to drive the circuit breaker to automatically close and open a brake, and after closing or opening is completed, the matching part (221) swings back to the original position.

2. A circuit breaker according to claim 1, wherein: two boss structures which are respectively used as a closing part (311) and a breaking part (312) are arranged on one side of the linkage piece (31) facing the output gear (22) in a protruding mode, and a boss structure which is used as a matching part (221) is arranged on one side of the output gear (22) facing the linkage piece (31) in a protruding mode.

3. A circuit breaker according to claim 2, wherein: the closing part (311) and the opening part (312) are arranged at intervals along the circumferential direction of the output gear (22), the side surface of the closing part (311) facing one side of the opening part (312) is used as a closing surface (3111), and the side surface of the opening part (312) facing one side of the closing part (311) is used as an opening surface (3121); the side surface of the matching part (221) facing the closing part (311) is a first matching surface (2211), and the side surface of the matching part (221) facing the opening part (312) is a second matching surface (2212).

4. A circuit breaker according to claim 3, wherein: the sector-shaped space between the closing part (311) and the opening part (312) is used as a matching space, and the central angle of the matching space is less than 180 degrees.

5. A circuit breaker according to claim 1, wherein: the electric operating mechanism (2) further comprises a motor (21) and a gear set (23), the motor (21) is vertically arranged on one side of the operating mechanism (3) along the thickness direction of the shell (1), the motor (21) is in driving connection with the control circuit board (4), the output end of the motor (21) is in transmission connection with the output gear (22) through the gear set (23), and the gear set (23) comprises a plurality of gears which are stacked.

6. A circuit breaker according to claim 1, wherein: the operating mechanism (3) further comprises a supporting piece (32), a jump buckle (33), a lock catch (34), a first connecting rod (35) and a second connecting rod (36), the supporting piece (32) is rotatably assembled on one side of the linkage piece (31), the jump buckle (33) and the lock catch (34) are rotatably assembled on the supporting piece (32), the jump buckle (33) is in snap fit with one end of the lock catch (34), the jump buckle (33) is linked with the linkage piece (31) through the first connecting rod (35), and the second connecting rod (36) is connected between the supporting piece (32) and the moving contact (6) of the contact mechanism.

7. A circuit breaker according to claim 1, wherein: an installation groove is arranged on one side of the linkage piece (31) facing the shell (1), and a return spring (313) is assembled in the installation groove.

8. A circuit breaker according to claim 1, wherein: one end of the shell (1) is provided with a button mechanism (5), the button mechanism (5) and the electric operation mechanism (2) are positioned on two sides of the operation mechanism (3), and one end of the button mechanism (5) extending into the shell (1) is connected with the linkage piece (31) through a third connecting rod (53).

9. A circuit breaker according to claim 8, wherein: the utility model discloses a wire splicing device, including shell (1), first wiring end and button hole, first wiring mouth and button hole are equipped with respectively as first wiring end and second wiring end at the relative both ends of shell (1) first wiring mouth and button hole are equipped with first wiring end correspondence and are equipped with first binding post in the button hole it has to slide in the button hole button mechanism (5), are equipped with the second wiring mouth at the second wiring mouth be provided with the second binding post that can be connected with the external conductor plug in the second wiring mouth.

10. A circuit breaker according to claim 5, wherein: the control circuit board (4) is arranged between the electric operating mechanism (2) and the operating mechanism (3) in a stacked mode.