JPH05502752A - Circuit breakers and their auxiliary equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Circuit breakers and their auxiliary equipment Related applications This application is filed June 1989, U.S. Patent Application Serial No. 374.0, No. 29EI. This is a partial continuation application of No. 37.

Background conventional technology Some forms of circuit breakers present safety hazards, and Even if the circuit breaker contacts fuse together, the circuit breaker remains in a state where a circuit is formed. The tripping mechanism against overload is activated while ism) In response, move the reset handle to the center position that normally indicates 4 release operation. There is a danger that it will become a driving force.

Devices such as those disclosed in U.S. Pat. No. 4,794,356 are known or The device is directly connected to the electrical circuit breaker contactor movement in the form of a modular accessory. We are proposing an interlocked status indicating switch, but this device does not indicate the contact status of the circuit breaker. Provides a sensing condition indicating to the user that if the blades are fused closed, the circuit breaker The company provides a device that warns that the device is not actually tripping effectively. this In the device, the switch is actuated directly by the movement of the contactor element itself They are linked in this way.

In addition, circuit breakers are often provided with remote trip actuation features. allows a remote operator to trip the circuit breaker. or desirable. Such mechanisms are also often constructed in modular form and are typically srS devices. It is known to use a member to hold the device in a reset state. arbitrarily A single interlocking element that is fixed to the circuit breaker and can perform both functions. This unit is designed to reduce the complexity of the device by eliminating the need for To applicant's knowledge, this is a useful feature that has never been developed before.

The present invention has been proposed to solve the above and other problems.

Summary of the invention According to a feature of the invention, a portion of the circuit breaker blade is accessible from the outside. The circuit breaker housing was modified to form an exposed access passage and the bolt The stop fitting module extends through the passageway of the circuit breaker in its desired configuration. a rotor coupled to a movable linkage member that engages a portion of the blade mechanism; It is made to include. supported by a blade mechanism, preferably a blade mechanism; A member mounted on a trip arm supported by a It is adapted to extend and engage with the interlocking member. Sensing switch in accessory module The tooth engages the mating surface on the rotor and the rotor is moved in response, causing the circuit breaker block to The circuit breaker will now trip and reset to indicate a true contact condition of the circuit breaker. ing. By engaging the circuit breaker blade through the circuit breaker trip lever , Rotation of the rotor when the circuit breaker is in the set position causes the circuit breaker to trip. . Therefore, the solenoid also engages the rotor and rotates in the tripping direction. It is configured and installed within the module. In this way a single interlocking element It not only senses the true state of the circuit breaker, but also remotely trips the circuit breaker. They provide the equipment.

Other features and advantages of the invention can be found on reading the following description in conjunction with the accompanying drawings. Therefore, it becomes clear.

Brief description of the drawing FIG. 1 is an explanatory diagram of a circuit breaker according to the present invention, and FIG. 2 is an illustration of a single circuit breaker according to the present invention. FIG. 3 is an explanatory diagram of the assembly in a contact state; FIG. 3 is an illustration of the single circuit breaker assembly shown in FIG. 2 shown in a non-contact condition; can be, Figure 4 is an illustration of the cam seen from the rear of the single circuit breaker assembly of Figures 2 and 3. can be, 5 is an exploded perspective view of the circuit breaker of FIG. 1, and FIG. 6 is an at-on ( add-on)・Module striker assembly, interlocking member and modified circuit breaker It is an exploded view showing Figure 7 shows the module shown in Figure 6 installed on the circuit breakers of Figures 1 to 6. 2 is a partially cutaway top view of the Joule assembly; FIG. FIGS. 8 through 11 show the components shown in FIG. 7 for use in modular assemblies. FIG. 3 is an explanatory diagram of the rotor in various states; 12 is a plan view of the interlocking member shown in FIG. 6, and FIG. 13 is a plan view of the interlocking member shown in FIG. FIG. 3 is a side elevation view of the interlocking member, Figure 14 is similar to Figures 2 and 3, with the contacts fused together and in a tripped state. It is a drawing which shows the circuit breaker assembly 4o which was made.

detailed description While the invention may be embodied in various different forms, the following description merely illustrates the principles of the invention. It is not intended to limit the broad features of the invention to the illustrated embodiments. Preferred embodiments of the invention are shown in the drawings and described in detail below, with the understanding that Explained in detail.

A circuit breaker 10 is shown in FIG.

Additional description of the general characteristics of this circuit breaker is specifically incorporated herein by reference. can be found in the following patents: That is, A. Westermeyer's U.S. Patent entitled "Rail Mounted Automatic Switch" No. 4,617,540, B, r arc blast field Westermayer U.S. Pat. No. 4,614 entitled "Automatic Switch with ．． No. 928, C1F ~ A software entitled Automatic Suinochino that fosters a physical touch instruction device. Starmeyer U.S. Pat. No. 4,609°895; D. R. Wester entitled ``Automatic switch with impact armature 4 release device'' Mayer U.S. Pat. No. 4.608.546; The circuit breaker 10 has a housing 11 and has a line terminal for connection to a power source (not shown). terminal 12 and a further load terminal I4 for connection to a load (not shown). I'm reading. The current path or the darkness of this line terminal 12 and load terminal I4 This current path is formed using the line conductor 16 and the bimetal support 1 as elements. 8, a brake comprising a bimetallic thermal element 20, a braided pigtail 22 and a movable contact 26; It includes a code 24.

Continuing from the movable contact 26, the current path passes through the fixed contact 28, the coil 3I, and the load conductor 34. and finally a load terminal 14.

Blade 24 is shown in the closed position in FIG. It is in contact with the constant contact 28.

As explained below with respect to FIG. 3, the blade 24 can be pivoted to an open position. is separated from either the movable contact 26 or the fixed contact 28, and the current flows through the movable contact 26 or the fixed contact 28. and the fixed contact 28.

Fixed contact 28 includes a layer of copper 28a laminated to a layer of steel 28b, with silver/glue A contact 28c of graphite composition is welded to this copper M28a.

Plate 24 indicates the position of blade 24 relative to fixed contact 28, generally indicated at 40. It is one element of a single circuit breaker assembly that controls the position of the circuit breaker.

The circuit breaker 10 also includes an electric arc suppression plate 29a on the track side and an electric arc suppression plate 29a on the load side. 29b and deionization plate stack, or arcst ack) 30, these arc stacks cooperate to connect the circuit breaker 10 or the negative It is designed to extinguish the electric arc that forms when released by a charge. Railway side and The electric arc suppression plates 29a and 29b on the load side and the arc stack 30 are respectively connected to the arc stack 30. It is also described in greater detail in the above-mentioned patents.

A single circuit breaker assembly 40 is shown in FIG. It is shown as being in the same position.

This single circuit breaker assembly 40 includes a first frame forming a first frame surface 42s. It includes a plate 42.

This first frame plate 42 is connected to the eleventh second and third upright members 4 respectively. Contains 3.44.45.

A pivot pin 48 extends upwardly through a hole in the first frame plate 42.

A trip lever 50 is mounted on a pivot pin 48 passing through an opening therein. this The trip lever 50 includes a solenoid actuation surface 52 and a bimetallic actuation surface S4. There is. Blade 24 includes an elongated llt 24a for receiving pivot pin 48. I'm here. The blade 24 further includes a notch 56 for which a tonnage is provided. A first end of glue spring 58 is attached.

The latch spring 60 is placed on the pivot pin 48 between the release lever 50 and the plate 24. It is located. The latch spring 60 has a first end that engages the first upright member 43. 62 and a second end 6 that engages the solenoid actuating surface 52 of the trip lever 50. Contains 3. The latch spring 60 presses the release lever 50 in a counterclockwise direction. It's meant to be empowering.

The cam 64 raises an actuation handle 65, which will be further described in detail below with reference to FIG. The cam spring 68 includes a recess 66 disposed within the cam spring 68 as shown in FIG. Camba The first end 69a of the spring extends outwardly from this recess 66 and into the third upright member 45. engaged. The second end 69b of the cam spring is retained within the recess 66. mosquito The spring 68 maintains the clockwise pressing force of the cam 64 as shown in FIG. ing.

A link 70 or cam 64 is connected to the pawl 72. This claw 72 is a shoulder rivet 76 is pivotally connected to the flag end 74 of the plate 24 by.

Bow 1 release lever 50 further includes an engagement surface 78 that engages pawl 72.

When in the closed position as shown in FIG. I contacted you! ! It's in charge. The shoulder rivet 76 serves as a fulcrum for the blade 24. The toggle spring 58 or the movable contact 26 is firmly held in contact with the fixed contact 28. It is designed to be held in place.

Referring again to FIG. 1, the blades 24 are bimetallic thermal elements 20, or coils. 31 is moved to the open position by actuation of either a spring-loaded loft 80 located within the I am able to do both things and be done.

When the current is passed between line terminal 12 and load terminal 14, the current passes through the bimetallic heating element 2o. As is known in the art, the current The metal thermal element 20 is heated, and this heat causes the bimetallic thermal element 20 to move in the direction of arrow 82. flexes downward. The amount of this deflection is related to the degree of heating of the bimetallic heating element 20. Therefore, the magnitude of the current flowing between line terminal I2 and load terminal 14 is It is related to the size and length of time.

When the bimetallic heating element 20 is fully deflected, the calibration screw 84 or the lever of the trip lever 50 Engages with the metal operating surface 54 and receives the pressing force of the tripping lever 50 or the latching spring 60. 48 and rotated clockwise about pivot pin 48, as will be explained in more detail below. The circuit breaker IO will be tripped.

The circuit breaker 10 can also be tripped by the coil 31. magnetic iron impeller The impeller 77 is slidable along the internal axis of the coil 31 to The extended position shown in FIG. 1 by the pressing spring 86 pressing against the IJ stop i79 is maintained. Insulated actuation lot 80 or similarly along the central core of coil 31 The core is axially movable and extends outwardly from opposite ends of the central core. child The length of lot 80 and impeller 77 is within the impeller or solenoid passage. The lot 80 is fixed to the tripping lever 50 in an upward direction by being pulled into the solenoid actuating surface 52 is forced to engage the solenoid actuating surface 52. Therefore, The current flowing between the line terminal I2 and the load terminal 14 flows through this coil 3. 1 and forms an electromagnetic field that acts on the impeller 77. Impeller 7 When this electromagnetic force acting on 7 exceeds the pressing force of solenoid 86, the impeller The rod 80 moves upward and comes into contact with the inner end of the rod 80, causing the rod to become solenoid. The trip lever 50 is rotated clockwise by forcing it into engagement with the noid actuating surface 52. It rotates to trip the circuit breaker 10 as explained below.

Now, referring to FIG. 2, if either bimetal thermal element 20 or lot 80 When rotating the tripping lever 50 clockwise, the engaging surface 78 of the tripping lever 50 When moved out of engagement with pawl 72, the handle spring, or cam, The pressing force from the spring 68 causes the cam 64 to rotate clockwise. Cam 64? When rotated clockwise, this cam 64 pulls the link 70 downward so that the pawl 72 Rotate counterclockwise around the shoulder rivet 76.

As shown in FIG. 3, when the pawl 72 disengages from the engagement surface 78, the brake The left end of the card 24 moves downward and is attached to a pivot pin 48 or an elongated hole that acts as a floating point. 24a. This allows the pivot pin 48 to move around the plate 24. The toggle spring 58 or the movable contact 26 acts as a fulcrum for rotating the fixed contact 28. In this way, the circuit is opened.

The actuation handle 65 is locked in the upper or contact position and is also bimetallic. When rotating the thermal element 20, rod 80, or trip lever 50 clockwise, The link 70 in compression between the cam 64 and the pawl 72 holds the pawl 72 at the shoulder. Rotate the engaging surface 78 clockwise around the rivet 76, and then attach the engaging surface 78 to the claw 7 again. 2 and disengaged from it. When the engaging surface 78 no longer engages with the claw 72 , the blade 24 is lowered and the pivot pin 48 is rotated by the blade 24. The toggle spring 58 again acts as a fulcrum to rotate the movable contact 26 to the fixed contact. This is done so that it is separated from point 28.

Cam 64 is reversed in FIG. 4 to better show recess 66 and cam spring 68. It is shown from the side.

Handle spring or cam spring 68 is centered on camshaft #188 . The second end 69b of the cam spring is held in contact with the wall 66a of the recess 66. Ru. The first end 69a of the cam spring is held in tension against the third upright member 45. held. Tension in cam spring 68 forces cam 64 and actuation handle 65 downward. It is pressed to the position.

Circuit breaker 10 is shown in an exploded perspective view in FIG. 1st frame play The first, second and third upright members 43, 44, 45 of the seat 42 each have a connecting tab. It terminates at 43a, 44a, and 45a. The second frame play 1.89 is the second forming a frame surface 89s, which corresponds to the tab receiving openings 43b, 4. 4b and 45b. These tab receiving openings 43b, 44b, 4, 5 b receives the connecting tabs 43a, 44a, 45a to provide an interference fit, and The frame plate 42 is fixed to the second frame plate 89. .

The first frame plate 42 cooperates with the second frame plate to assemble the assembly frame. is formed. In a preferred embodiment, the ml and second frame play 42.89 are each made in separate pieces, but the assembled frame to form opposite opposing frame surfaces without departing from the spirit and scope of the invention. It should be understood that it could also be formed by a single piece folded back into the Must be. Fixed to first frame plate 42 or second frame plate 89 All elements of the single circuit breaker assembly 40 are fixed together by It is.

As shown in FIG. 5, the various operating elements of circuit breaker 1.0 are easily It can be lowered into the housing and no special mounting equipment is required.

The housing 11 includes a base portion 11a and a cover 11b. The base 11a is x-y an inner wall defining a plane and oriented perpendicularly to the base 11a along the Z-axis; There is.

The entire inner wall is an arc stack section (arc stack 5 section) 9 0, bounding the single circuit breaker assembly section 92 and the coil section 94.

The ends 18a and +8b of the bimetal support part 18 are the respective bimetal support parts. into grooves 96a, 96b and are retained therein. Line side electricity The arc suppression plate 29a is slid into the arc holder groove 98 and retained therein. has been done. This allows the single circuit breaker assembly 40 to be easily converted into a single circuit breaker assembly part. 92 so that the attachment to the housing 11 does not require any equipment. Ru. The load conductor 34 is slid into the load conductor groove 99 and retained therein. Ru.

Plate 24 is a plate with tapered edges and acts structurally as a beam. It is designed to prevent bending. Additional current carrying capacity if required , simply increase the width of the plate 24.

As mentioned above, whether the tripping lever 50 is rotated clockwise by the bimetal element 20 or the breaker 3 and removes the circuit breaker assembly 40 from the closed position shown in FIG. 2 to the closed position shown in FIG. It was explained how it should be pulled out to the open position. Tripping bottle 100 or tripping It is fixed to the lever 5o, and the arc-shaped notch I in the blade 24 is vertically inserted into the blade 24. It extends outward through the ll. Due to tripping, pin +00 is shown as a broken line in Figure 2. Follow the arcuate path 103 shown. According to the above explanation, the trip bottle 100? When pushed downward as shown in FIGS. 1, 2 and 4, the circuit breaker assembly The tripping of 40 is also caused by rotating the tripping lever 50. It's clearly obvious.

It is further noted that in all cases pin 100 is active with blade 24. to determine whether the bin 100 is in the breaker, closed or open position. It is to indicate what is there. In both of these positions in Figures 2 and 3, Some bins 100 or blades 24 are located slightly below the edge of the cutout portion III. That's what attracts attention. Considering the circuit breaker in the reset position shown in Figure 2, or Furthermore, referring to FIG. 14, if contacts 26 and 28 are fused together, A slight clockwise rotation of the release lever 50 immediately releases the pawl 72 or the blade 24. However, the clockwise rotation of the blade 24 is caused by the above-mentioned It can be seen that this is prevented by the fusion of contacts 26,28. Therefore, blade 24 It produces only a minimal clockwise movement until it engages pin 48 and is restrained. It is. Since the locking engagement between pawl 72 and engagement surface 78 has been released, the cam 64 is immediately rotated clockwise by the force of the cam spring 68, but the blade 24 is It cannot be rotated clockwise and is finally brought to the intermediate position shown in Figure 14. It is. The tripping lever 50 is pressed counterclockwise by the force of the pressing spring 60. or the immediate engagement of the pin 100 with the edge of the cutout portion 111. It prevents movement. Therefore, in this situation, bin 100 can be ignored. It only produces a moderate amount of exercise.

Therefore, slight movement of pin +00 causes engagement surface 78 to disengage from pawl 72. It is. If contacts 26 and 28 are not fused closed, the bottle +00 The subsequent position is such that the circuit breaker assembly 40 is positively actuated to the open condition. It serves as an instruction. Therefore, pin 100 can be used to trip the circuit breaker. , and serves as a sensing element to indicate the subsequent state of the contact.

The foregoing description is provided with a position sensor to indicate the position of the bin 100 and also includes a circuit breaker assembly. an at-on accessory module containing an actuation mechanism that provides remote tripping actuation of the volume 40; This is used to explain the enabling use of the rule 104. To achieve this In order to the edge of the pin lOO along the entire range of its location. There is.

Therefore, referring to FIG. 6, the outer surface 112 of the housing cover plate 11a is uniform. There is a notch 110 in close contact with the entire edge of the recess 114, and a notch 110 extending outward from the surface of the recess 114. A recess 114 in the form of a circular sector is provided with struts 116 extending in the direction. and the post is disposed generally coaxially with the pivot pin 48 of the circuit breaker assembly 40. There is. Interlocking member 118 (see FIGS. 12 and 13) or similarly flat circular sector - shaped as - and guided to a radial point shaped to receive the strut +16. A hole 120 is present. A pair of pin engagement bosses 122 and 124 or the interlocking member 118 It extends outward from one side. This interlocking member 118 is arranged on the support column 116. When the pin They are located on either side of 100. Therefore, the rotation of the interlocking member 118 is interrupted. The subsequent movement of the pin 100 or the rotation of the interlocking member +18 It turns it around.

The accessory module 104 is flush with the outer surface 112 of the circuit breaker housing 11. It includes a housing 126 having a surface 129 shaped to do so. Howso An arc-shaped notch 128 similar to the notch 110 of the ring cover plate 11a is provided. 26, allowing access to the interior of the housing +26, and similar struts 13. 0 and a recess 132 are provided. The interlocking member 118 is connected to the host I22, +24. is provided with a similar pair of hosts 134, +36 on the opposite side. Auxiliary equipment The housing song 126 is placed in place on the interlocking member 118 and attached to the housing 11. By being fixed, the hosts 134, 136 move the pin 100 or It is similarly interlocked so that it is moved by the engine 100. Interlocking member boss 134 and 136 extend into and are mounted within the housing 126. to engage a pair of boss receiving passages 138, 140 in the rotor 142 It is shaped.

The circuit breaker housing part 11, lla is fitted with hollow rivets 172.174.176 (No. 6 and 7) is desirable. Auxiliary equipment Assembly housing +06 and rear wall 146 are similarly fitted with hollow rivets 180, +9 0, these hollow rivets are fitted with through bolts or auxiliary equipment housings. is passed between both the ring 104 and the circuit breaker 10 to assemble these units together. It is designed to match. In a variant, self-tapping f-t app ingscrew) or these units. Both can be hot-staken. Ru.

Referring now to FIG. 7, rotor 142 is internally mounted by struts 144. Rotatably mounted around the central passage 143 (see Figures 8 to 11). This internal mounting means that the struts extend outwardly from the interior of the housing 126; It abuts the rear housing wall 146 and is fixed in place. housing +2 6 contains a plunger to rotate the rotor 142 and trip the circuit breaker. Senses the position of the solenoid coil 148 and coater 142 connected to 150 A microswitch 152 is arranged so as to planter 150 has a generally radially extending shoulder flange 154 at its outer end. child The blunt gear 150 extends through a plunger passage 157 within the rotor 142. the shoulder flange 154 generally abuts the flange engagement surface 156 of the rotor 142; are doing. This plunger 150 can move freely and is not constrained by the spring. As a result, the rotor 142 may, for example, set a circuit breaker or It can move freely by pin 100 when it is tripped by overcurrent or by overcurrent. The rotor 142 does not give motion to the plunger 150 by tripping. do not have. However, the retraction operation of the plunger 150 is performed by moving the pin 100. This will cause the disconnector to trip.

The microswitch 152 may be connected to the rotor 142, a thermal device or a solenoid 14. 8 to the clockwise end position where the circuit breaker is normally tripped. When actuated, the microswitch 152 engages the actuating member 166 on the rotor 142. is arranged so as to be engaged with the outer surface 162. The sensing action of the microswitch is Relayed to connector block 168 by microswitch conductors 164-165 be done. Similarly, solenoid coil 148 is connected by conductors 169 and 171. Connected to nectar block 168. In this way, the circuit breaker can be remotely sensed. The remote trip actuation of the circuit breaker is obtained via the intelligence function or connector 168. This can be done by providing appropriate control signals to the vector 168. be.

Unlike this, the microswitch 152 is connected in series to the solenoid coil 148. is opened and opened by solenoid-induced tripping of circuit breaker assembly 40. It can be operated in any position. Therefore, the solenoid coil looks like this When used, it is self-energized and therefore will not burn out due to excessive excitation. do not have. Therefore, a much smaller solenoid coil 148 can be used. This way Such features are also secured to the opposite side of circuit breaker housing 11 and similarly to pin 100. This can be achieved by providing a second interlocked microswitch. like this In this arrangement, it not only de-energizes the solenoid but also directs the blade position. It is possible. Similarly, this microswitch 152 incorporates such features. double-polesingle-throw unit unit).

The invention is embodied in the specific form of a pond without departing from its spirit and central characteristics. What can be done must be understood. Therefore, the above examples and examples are all The drawings are illustrative in nature and the invention is not intended to be limited to such details.

22; divination; -no- international search report

Claims (16)

[Claims] 1. The movable contactor alternately makes contact with the fixed contact and releases the contact. a circuit breaker housing having a circuit breaker assembly disposed therein, and the circuit breaker assembly a releasable latching device for automatically actuating the contactor to the circuit breaking position; a position indicating device that is supported by the contactor and indicates the position of the contactor; actuating the circuit breaker assembly to the circuit breaking position in response to a force applied to the device; a circuit breaker surface mount accessory module having said position indicating device; The circuit breaker housing is accessible from the outside to the position indicating device. the module has a module housing; The module is mounted on the circuit breaker housing, and the module is then mounted on the circuit breaker housing. When the module housing is attached to the circuit breaker housing, the circuit breaker housing A module housing opening is arranged to abut the module housing. a mounting device; disposed within the module housing and operated between first and second switching conditions; The switch is movable and is adapted to indicate circuit complete and circuit break positions, respectively. a switch device; When the module housing is installed on the circuit breaker housing, the a switch device is interlocked with the position indicating device, so that the contactor is in the circuit completion position. actuating the switch device to the first switching position when the contactor is in the forward position; The circuit is actuated to the second switching position when the circuit is in the circuit breaking position; at least one interlocking member disposed through the module housing opening; an interlocking device including; disposed within the module housing and presses the interlocking member to release the module. the circuit breaker assembly in the circuit breaking position when a module is installed on the circuit breaker. a solenoid device operated to a connector for making electrical connections to the solenoid device and the switch device; surface-mounted accessory module that includes the vector device and, 2. The mounting device removably attaches the module housing to the circuit breaker housing. 2. A module as claimed in claim 1, including means for attaching to a housing. 3. The contactor moves along an arcuate path between a circuit completion position and a circuit break position. and the position indicating device is adapted to move the contactor to the circuit breaking position. moving along an arcuate path in a first direction in response to motion, the position in the first direction; and adapted to actuate the circuit breaker assembly in response to a force applied to an indicating device. and the interlocking device is rotatably mounted within the module housing and Rotation of the rotor causes the switch device to be in the first and second switching states. the interlocking member includes a rotor shaped to operate between the The shield is configured to engage and be rotatably moved with the rotor; the interlocking device or the solenoid is adapted to engage with a position indicating device of the disconnector; and a device for rotating the interlocking member in the first direction in response to energization of an idle device. A module according to claim 1, which includes: 4. the switch device is responsive to final rotation of the rotor in the first direction; including a device adapted to release the solenoid device from the connector device. A module according to claim 3. 5. This module housing is adapted to be penetrated by the module housing. an outer wall of the ring is shaped with a recess that includes the housing opening, and the interlocking member is shaped to be partially disposed within a recess of the module housing; This module housing when the module is installed in the circuit breaker housing. a generally flat member adapted for rotational movement within the ring; The interlocking member is shaped to engage the rotor, and one of the interlocking members is shaped to engage the rotor. a portion extending from two principal sides and shaped to engage said position pointing device; In addition, the claim is made to have a portion extending from one principal surface of the opposite side. Modules listed in Scope No. 3. 6. Attachment for rotating the interlocking member within the recess of the module. 6. A module as claimed in claim 5, further comprising a device. 7. a circuit breaker housing; placed in the housing and alternately completes contact with fixed contacts via movable contactors and a circuit breaker assembly adapted to interrupt contact, the circuit breaker assembly a releasable latching device for automatically actuating the body into a circuit breaking position; a position indicating device supported by the contactor and indicating the position of the contactor; actuating the circuit breaker assembly to the circuit breaking position in response to a force applied to an indicating device; said position indicating device including a device for causing said circuit breaker housing to It has an opening that allows access to the position pointing device from the outside. the circuit breaker assembly; attached to the circuit breaker housing and facing the opening of the circuit breaker housing; a module housing having a module housing opening disposed in the front; The contactor positions and between the first and second switching states to indicate the contactor position to interrupt the circuit and the circuit. a switch device operable with When the module housing is installed on the circuit breaker housing, the a switch device is interlocked with the position indicating device, so that the contactor is in the circuit completion position. actuating said switch device to said first switching position and said contactor is actuated to the second switching position when the switch is in the circuit breaking position. An interlocking device for interlocking the switching device with the position pointing device, the interlocking device comprising: at least one interlocking device disposed such that the interlocking device passes through an opening in the module housing. the interlocking device, both of which include one interlocking member; disposed within the module housing to position the circuit breaker assembly in the circuit breaking position; a solenoid device that presses the interlocking member to operate the interlocking member; a connector device for electrically connecting the solenoid device and the switch device; Place and including circuit breakers and their accessories. 8. removably attaching the module housing onto the circuit breaker housing; The circuit breaker as claimed in claim 7 and including a mounting device for accessories. 9. The contactor moves along an arcuate path between a circuit completion position and a circuit break position. the position indicating device is configured to direct the contactor to the circuit breaking position; moving in a first direction along an arcuate path in response to the crawling motion; said circuit breaker assembly in response to a force applied to said position indicating device in said first direction. said interlocking device is adapted to actuate said motor body to said circuit breaking position; includes a rotor rotatably mounted within a joule housing; rotation of the switch device between the first and second switching states. the interlocking member is configured to engage and engage the rotor; and is shaped to be rotated with the circuit breaker and engaged with the position indicating device of the circuit breaker. the interlocking device is configured to actuate the interlocking device in response to energization of the solenoid device; Claim 8, wherein the movable member is configured to rotate in the first direction. circuit breakers and their accessories. 10. the switch device is responsive to final rotation of the rotor in the first direction; and a device for isolating the solenoid device from the connector device. The circuit breakers and their accessories listed in Section 9 of the Scope. 11. of the module housing in which the opening of the module housing is open; The outer wall portion is formed with a recess including the housing opening, and the interlocking member is partially disposed. The module housing is shaped to be disposed within the recess of the module housing. a generally flat member rotatable therein, the interlocking member being one main a portion extending from the surface and adapted to engage said rotor, and a main portion on the opposite side; having a portion extending from the surface and adapted to engage the position pointing device; A circuit breaker and its accessories as set forth in claim 9. 12. Attachment for rotating the interlocking member within the recess of the module. The circuit breaker and its attachments according to claim 11, further comprising a Accessories. 13. The outer surface of the circuit breaker housing has a circular shape including the opening of the circuit breaker housing. Claim 11 provides a recess shaped as a sector. circuit breakers and their accessories. 14. a circuit breaker housing; located within this housing, which alternately contacts and interrupts fixed contacts via a movable contactor. a circuit breaker assembly adapted to disconnect the circuit breaker assembly, the circuit breaker assembly being configured to a releasable latching device supported by the contactor and automatically actuated when the contactor is placed; A position indicating device that indicates the position of this contactor, and a position indicating device that is given to this position indicating device. and a device for actuating the circuit breaker assembly to the circuit breaking position in response to a force applied to the circuit breaker assembly. the circuit breaker housing includes the position indicating device configured to It has an opening that allows access to the position indicating device from the outside. electrical circuit breaker. 15. The contactor moves along an arcuate path between a circuit completion position and a circuit break position. the position indicating device is adapted to move in the circuit breaking position of the contactor; moving in a first direction along an arcuate path in response to the movement toward said first direction; in response to a force applied to the position indicating device to cause the circuit breaker assembly to move into the circuit. The electricity according to claim 14, which is adapted to be activated in the cut-off position. target circuit breaker. 16. The outer wall portion of the circuit breaker housing is circular including the opening of the circuit breaker housing. Claim 15 is provided with a recess shaped as a sector. electrical circuit breaker.