Abstract: A receptacle type GFCI includes an input circuit, a leakage current detecting and amplifying circuit, a neutral ground fault detecting and amplifying circuit, a signal control circuit including an IC and a reset and trip actuating circuit, an output circuit, and a ground fault self detecting circuit connected between the input circuit and the reset and trip actuating circuit. The ground fault self detecting circuit is used to test, when the power is turned on for the first time under correct wiring or when the TEST button is pressed after the RESET button is pressed, whether the ground fault protection function of the GFCI is working properly. The ground fault self detecting circuit includes an end-of-life indicator.

Abstract: Certain exemplary embodiments include a circuit breaker armature that includes and/or defines a contact zone intersected by a longitudinal axis of a solenoid comprising a plunger, the solenoid adapted to extend the plunger along the longitudinal axis to engage with the contact zone and move the armature, a predefined movement of the armature adapted to cause a trip of the circuit breaker.

Abstract: An overvoltage protection device for protection of low voltage electrical installations, has a device base part with terminals for phase conductors and ground or neutral conductors and at least one overvoltage protection element, with at least one arrester which is located in a housing. The base part of the device has at least one telecommunications contact which has a switch for remote indication of the state of at least one overvoltage protection element, the base part of the device having plug contacts which are connected to the terminals, and the overvoltage protection element having corresponding connector contacts so that the overvoltage protection element can be plugged onto the base part of the device. The overvoltage protection device is improved by the overvoltage protection element having an optical status display and the optical status display and the switch of the telecommunications contact being actuated via a common mechanical actuating system.

Abstract: A decoupling assembly structured to decouple the charging motor and the charging assembly cam shaft is provided. The decoupling assembly includes a lifter pin assembly and an elongated second end to a link member in the over-running clutch assembly. The link member supports a pawl which engages an over-running clutch assembly sprocket. The pawl is disposed on one side of a link member that is pivotally attached to an over-running clutch assembly hub assembly. The link member is structured to pivot in a “see-saw” like manner and thereby move the pawl between a first position, wherein the pawl engages the sprocket, and a second position, wherein the pawl does not engage the sprocket. The lifter pin assembly includes a spring loaded lifter pin that is structured to engage the link member second end and thereby move the pawl between the first position and the second position.

Abstract: A receptacle type ground-fault circuit interrupter (GFCI) device adapted for connecting to input lines, which includes a pair of input terminals for connecting to the input lines, a pair of receptacle outlets, a ground-fault current detector for detecting a ground fault condition on the input lines, a reset and trip device, and a self detecting and testing structure. The device further includes a normal working condition indicator and an end-of-life indicator. When the GFCI device is correctly wired and working properly, the device can be properly reset by a reset button. When the ground-fault is detected, the GFCI is put in a normal tripped state with no power output. When the input terminals and the output terminals are reversely wired, no power is output. If an input line is broken, no power is output.

Abstract: Certain exemplary embodiments comprise an apparatus, comprising: a circuit breaker comprising: an integral thermo-magnetic trip device adapted to trip said circuit breaker upon an occurrence of a current overload and adapted to trip said circuit breaker upon an occurrence of a voltage spike of at least a predetermined level; and an integral electronic trip device adapted to trip said circuit breaker upon detection of a ground fault and adapted to trip said circuit breaker upon detection of an arc fault, said integral electronic trip device comprising a solenoid adapted to actuate upon at least one of said ground fault and said arc fault, said solenoid comprising a plunger, said plunger comprising a plunger tip located at an end of said plunger and defined about a longitudinal axis of said solenoid, said plunger tip adapted to contact and move a biased armature.

Abstract: Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational, if an open neutral condition exists or if the device is reverse wired. Methods for ensuring a reset lock out state before shipment are provided.

Abstract: A trip unit in a miniature circuit breaker includes a magnetic yoke and a bimetal mounted on the outside of the yoke. The bimetal is welded at one end to a load terminal that leads to a terminal connector and at the other end to a pigtail. The pigtail, instead of the bimetal, passes through the yoke for connection to the blade of the circuit breaker. To induce a higher magnetic field for faster tripping, a second pigtail may be passed through the yoke in which one end of the second pigtail is connected to the load terminal near the terminal connector and the other end is connected to the bimetal near the load terminal connection point. The load terminal may include at least two parts, one part including the adjustment screw and the other part including the terminal screw. These parts may be separated by air or an insulator.

Abstract: Certain exemplary embodiments comprise a device comprising: a trip mechanism adapted to engage an operating mechanism of an alternating current circuit breaker, said trip mechanism comprising: a bi-metal element arranged lengthwise into a first end zone, a central zone, and a second end zone, a load bus coupled to said first zone, said second end zone adapted to engage an armature latch that is adapted to trip on operating mechanism of the circuit breaker; and an electromagnetic element coupled to the load bus.

Abstract: The reset lever on a circuit breaker undervoltage relay is actuated by translating arcuate movement of a handle arm pin as the circuit breaker handle is moved to the off position into rotation of the reset lever through a complaint interface lever that is stiff enough to actuate the reset lever, but flexible enough to accommodate for overtravel of the handle arm pin when the circuit breaker is reset and for the stackup of tolerances in the operating mechanism.

Abstract: A trip unit in a miniature circuit breaker includes a magnetic yoke and a bimetal mounted on the outside of the yoke. The bimetal is welded at one end to a load terminal that leads to a terminal connector and at the other end to a pigtail. The pigtail, instead of the bimetal, passes through the yoke for connection to the blade of the circuit breaker. To induce a higher magnetic field for faster tripping, a second pigtail may be passed through the yoke in which one end of the second pigtail is connected to the load terminal near the terminal connector and the other end is connected to the bimetal near the load terminal connection point. The load terminal may include at least two parts, one part including the adjustment screw and the other part including the terminal screw. These parts may be separated by air or an insulator.

Abstract: A shield is provided for a circuit breaker including a printed circuit board (PCB). The PCB is a generally planar member with a plurality of electrical components each having a corresponding shape. The shield includes at least one resilient sheet member at least partially covering the generally planar member and at least one of the electrical components coupled thereto. The resilient sheet member generally conforms to the corresponding shape of the at least one of the electrical components in order to shield and protect it from debris and to resist accumulation of gas-carried carbon. The resilient sheet member is made from a material, such as silicon rubber, which is flexible and elastic within a temperature range of about ?70 to about 450 degrees Fahrenheit, and it is flame-resistant, tear and abrasion-resistant, impervious to moisture and chemicals, fungus-resistant, and resistant to outgassing.

Abstract: A circuit breaker includes separable contacts, an operating mechanism structured to open and close the separable contacts, a molded enclosure comprising a first molded portion and a second molded portion, a plurality of thread cutting screws fastening the first molded portion to the second molded portion, and a plurality of machine screws. The first molded portion and the second molded portion cooperate to form a plurality of exterior walls. The exterior walls define an interior volume, which encloses the separable contacts and at least a portion of the operating mechanism. The machine screws extend within and reinforce the exterior walls and restrict expansion of the exterior walls away from the interior volume.

Abstract: A manual trip control method and arrangement is provided to manually trip a plurality of circuit interrupters. Specifically, where the circuit interrupters include magnetic-actuator-driven vacuum interrupters including permanent magnets that hold the contacts of the circuit interrupter in the closed position via a plunger, a first of the circuit interrupters is manually tripped via movement of the plunger. To operate the remaining circuit interrupters to trip open, the voltage generated in the magnetic actuator of the first circuit interrupter is coupled to the magnetic actuators of the remaining circuit interrupters for tripping thereof.

Abstract: A circuit breaker includes fixed and movable contacts, an operating mechanism including a movable arm carrying the movable contact, an arc chute including a plurality of spaced apart first and second arc plates, and a slot motor. A slot motor structure is disposed about the contacts and a portion of the movable arm. An insulative housing at least substantially covers and insulates the slot motor structure from the movable arm and contacts. The insulative housing includes a base and a pair of arms disposed therefrom. Each of the arms includes a first portion disposed proximate the first arc plates and a second smaller portion disposed proximate the second arc plates. A space extending from the first portion, not occupied by the second portion, is generally occupied by a portion of the second arc plates. The second portion forms a debris shield between the second arc plates and the operating mechanism.

Abstract: An electronic type protective relay integrates the mechanical structure into a single operation rod to protect electric machinery. The electronic type protective relay includes an insulating shell, a tripping rod, a magnetic-force device and an operation device. The tripping rod is pivoted in the inner part of the insulating shell and conducts two pairs of connection pins. The tripping rod includes a control magnetic core. The magnetic-force device includes a tripping electromagnet, a reset electromagnet, and a permanent magnet installed between the tripping electromagnet and the reset electromagnet. The operation device includes an auxiliary rod located on one side of the tripping rod, an operation rod installed between the tripping rod and the auxiliary rod and protruding beyond the insulating shell. The operation rod can be located at four locations and in cooperation with the auxiliary rod to stop or reset.

Abstract: A ground fault circuit interrupter device is described.

Abstract: A circuit breaker includes a circuit breaker frame and a trip unit. The circuit breaker frame includes a housing, a line terminal, a load terminal, separable contacts electrically connected between the line terminal and the load terminal, an operating mechanism structured to open and close the separable contacts, and a latch cooperating with the operating mechanism to open the separable contacts when actuated. The trip unit includes a housing, a line end terminal electrically connected to the load terminal of the circuit breaker frame, a load end terminal, and a fuse including a plunger. The fuse is housed by the housing of the trip unit and is electrically connected between the line end terminal and the load end terminal. An interface mechanism is structured to actuate the latch of the circuit breaker frame when the interface mechanism is engaged by the plunger of the fuse.

Abstract: A load drive controller for controlling a heat generating member by a switching element includes a temperature detection portion for detecting a physical quantity of a level corresponding to a temperature of the switching element, a protection function portion for outputting an abnormality signal corresponding to an overheated state of the switching element when the physical quantity detected by the temperature detection portion is larger than a value, a control portion for causing the heat generating member to generate heat by driving the switching element via a driving portion. Furthermore, the control portion causes a temperature adjustment portion to increase the temperature of the heat generating member when the abnormality signal is input from the protection function portion.

Abstract: This invention discloses a ground fault circuit interrupter capable of detecting its end of life, and is characterized by: a pair of flexible metal sheets connected to the power output end are added on the circuit board of the interrupter, and there is a pair of moving contacts on the metal sheets; there are two pairs of fixed contacts on the power output conductors; the two pairs of fixed contacts on the power output conductors respectively correspond to the moving contacts on the power input metal sheets and the moving contacts on flexible metal sheets, thus forming two groups and four pairs of switches. There is also a tripping apparatus on the circuit board, which can release/trip the interrupter, thus cutting off the power output of the interrupter. An end of life detection circuit has also been added to the circuit board. After the interrupter is energized, various components in the interrupter are automatically detected.

Abstract: A housing for a single-pole circuit breaker is disclosed. The housing includes two current path regions, each region having a first section configured to receive an electromagnetic protection device, a second section configured to receive a thermal protection device, a third section configured to receive an arc extinguishing device, and a fourth section configured to receive an operating mechanism device. Each first section occupies a substantial part of the available internal width of the housing, and is disposed between the respective third and fourth sections. Each second section occupies about half the available internal width of the housing.

Abstract: A housing for a single-pole circuit breaker is disclosed. The housing includes two current path regions, each region having a first section configured to receive an electromagnetic protection device, a second section configured to receive a thermal protection device, a third section configured to receive an arc extinguishing device, and a fourth section configured to receive an operating mechanism device. Each first section occupies a substantial part of the available internal width of the housing, and is disposed between the respective third and fourth sections. Each second section occupies about half the available internal width of the housing.

Abstract: A system and method for resetting a tripped circuit breaker are provided. The system includes a monitoring mechanism for monitoring a state of at least one electrical circuit breaker and for generating at least one monitoring signal indicative of the state of the at least one electrical circuit breaker; an actuating mechanism for actuating the at least one electrical circuit breaker in a plurality of positions; and a controller for receiving the at least one monitoring signal and for generating and transmitting at least one control signal to the actuating mechanism for resetting the at least one circuit breaker. The breaker reset system is self-contained and dimensioned as an add-on component to previously installed circuit breaker enclosure or as an integrated component of a circuit breaker enclosure. Additionally, the system allows for manual over-ride of the reset function.

Abstract: An opening assist mechanism is for the cradle assembly of a circuit breaker including a housing enclosing separable contacts, and an operating mechanism for opening and closing the separable contacts. The operating mechanism includes a trip bar and a cradle assembly. The cradle assembly includes a first toggle link, a second toggle link pivotally coupled to the first toggle link by a first pivot, and a cradle member pivotally coupled to the second toggle link by a second pivot. The cradle member includes a third pivot and a latching portion structured to engage the trip bar when the cradle assembly is disposed in a position corresponding to the separable contacts being closed or otherwise closeable. The opening assist mechanism comprises an actuator, such as a kicker pin, disposed on the cradle member and structured to engage and move at least one of the first and second toggle links in response to an actuation of the operating mechanism.

Abstract: The invention relates to a electromechanical switching device having two movable contact elements interacting with a fixed contact. Said switching device has a housing. When viewing a fixing side from the top, said housing is divided into two areas bordering with a longitudinal side of the housing, one of the movable contact elements and the corresponding fixed contact being located in said areas, wherein each of the housing areas has a narrow partial area and a broad partial area bordering therewith. The broad partial area of the first housing area is adjacent to the narrow partial area of the second housing area and the narrow partial area of the first housing area is adjacent to the broad partial area of the second housing area. The actuation directions of the movable contact elements are directed opposite each other.

Abstract: A terminal assembly for use in a circuit breaker. The terminal assembly includes a first member and a second member abutting the first member. The second member includes a pair of protruding arms to be inserted into a corresponding pair of recesses in a circuit breaker housing. Because the pair of protruding arms are inserted into the housing, the first member is protected against rotational force.

Abstract: A moving arm for a moving contact assembly in a telecommunication system circuit breaker is provided. The circuit breaker has a housing assembly, an operating mechanism, a trip device, and a current path assembly. The current path assembly includes a line conductor assembly having a fixed contact. The operating mechanism is structured to move between an on position, a tripped position, an off position and a reset position. The moving arm assembly also includes a movable contact structured to be disposed on the moving arm. The moving arm has an elongated body with an offset disposed at one end. The offset is structured to displace the movable contact relative to the longitudinal axis of the moving arm body.

Abstract: Located within a GFCI is a movable contact bearing arm which cooperates with at least one fixed contact. When the movable arm is moved up to allow the at least one contact on the arm to close with at least one fixed contact, the GFCI is in a conducting state and current flows from a source of electricity through the closed contacts to a load and to the contacts of a receptacle. When the movable arm is moved down to open the contacts, the GFCI is in a non-conducting state and current cannot flow from the source of electricity to either the load or the receptacle contacts. In this invention, the up and down movement of the movable contact bearing arm is harnessed to move a blocking member located within the housing of the GFCI to a first position to block at least one opening of the receptacle as the movable arm is moved down or to a second position to allow the prongs of a plug to enter the openings of the receptacle as the movable arm is moved up.

Abstract: An apparatus and method for circuit interruption, with auto-power on and fault memory. The interrupter includes first and second locks in series with one another, and in series between the circuit driving source and load. The first lock is in communication with the circuit driving source. Control circuitry may be disposed between the circuit driving source and the first lock. When either lock is open the circuit is open; with both locks closed the circuit is closed. Actuating one lock does not change the state of the other lock. While closing input such as a power signal is applied to the first lock it is closed, and while the closing input is not applied it is open. When an opening input such as a fault signal is applied the second lock opens, and when a closing input such as a reset signal is applied the second lock closes.

Abstract: A lockable fastener connects together a plurality of components of a circuit breaker and maintains electrical conductivity between the components while permitting relative movement therebetween. The lockable fastener includes a first clinch nut member and a second clinch bolt member. The clinch nut member includes a threaded cavity formed therein, a side having opening therein, and a passageway between the side at the opening and a surface proximate the threaded cavity. The clinch bolt member includes a threaded shank. At least a portion of the threaded shank is threadably receivable in the threaded cavity of the clinch nut member, in order to axially align the clinch nut and clinch bolt members. The clinch nut and clinch bolt members are adapted to be locked by deformation of the surface of the clinch nut member to prevent loosening of the members.

Abstract: A circuit interrupting device has a circuit interrupter with a stationary contact and a moveable contact. The movable contact is movable relative to the stationary contact between a closed position that allows current to pass through the circuit interrupter and an open position separating the contacts and preventing current from passing through the circuit interrupter. The movable contact is controlled by a solenoid assembly. The movable contact is connected to a plunger of the solenoid assembly by a turnbuckle and weld break assembly. The turnbuckle and weld break assembly permits adjusting the contact wipe distance and generates a hammer force to break any welds between the contacts of the vacuum interrupter.

Abstract: A shouldered connector pin socket (14) is shown having an open channel (14a) formed in the face surface of a wall member of a circuit breaker housing. An electrically conductive spring member (16, 16?) is received over the channel and is formed with a first set of spring fingers (16d) that are adapted to engage a connector pin along a first axial length (14c) of the channel making electrical engagement with the pin and urging the pin against the channel surface as the pin is slidingly inserted into the channel. The spring fingers urge the flange of the connector pin into a recess formed by a stepped shoulder defining the entrance to a second axial length (14d) with the stepped shoulder and the spring fingers cooperating to retain the connector pin in the channel. A second set of spring contact fingers (16e) can also be used to engage the connector pin along a third axial length (14e) and thereby provide a redundant contact system.

Abstract: An oil-immersed and high-pressure tripping switch structure comprises an operational apparatus, an arc-extinguishing cylinder, and an oil-shortage automatic tripping safety device wherein a sensory device detecting a fault current will trip open to displace a spring rebound pivoting-point, permitting a main spring to simultaneously actuate the release of contact points and the rotation of an operational handle therewith so that the operational handle is rotated to recover its primary angle so as to indicate the tripped/off status of the switch, facilitating the judgment and operation of workers. In addition, via a buoyant tube combined with an oil-retaining tank, the buoyant tube in case of oil-shortage can generate a sufficient downward pressure to activate the release of a tripping device so as to ensure the safety of the present invention in operation. Furthermore, a complex arc-interruption mechanism is applied so that the arc-extinguishing cylinder can efficiently break higher fault current thereby.

Abstract: A handle assembly is provided for a circuit breaker which includes a housing assembly that defines a substantially enclosed space housing an operating mechanism. The handle assembly is preferably a single-piece and includes a base member which is coupled to the operating mechanism, and a handle member having a first end which protrudes from an opening of the housing assembly, and a second end coupled to the base member. The base member includes first and second integral resilient legs which are disposed within the opening and are supported by posts protruding from the housing assembly, in order to resist undesired access into the substantially enclosed space therein. The first and second integral resilient legs each include a groove which increases the resiliency of the leg. The handle assembly is preferably symmetric about the longitudinal axis of the handle member.

Abstract: A permanent-magnet ground fault circuit interrupter plug with self-diagnosing function having an enclosure and a permanent-magnet mechanism encased in the enclosure.

Abstract: An accessory for providing mechanical communication between a rotatable latching shaft and an actuation device of an electrical circuit breaker includes a lever, a working surface, and a snap fitting. The lever includes an engagement orifice. The engagement orifice is receptive to the rotatable latching shaft. The working surface is in mechanical communication with the actuation device. The snap fitting is securely mated with the rotatable latching shaft.

Abstract: A supply device (1) for an electronic protection device to be used in a low-voltage circuit breaker. The supply device basically comprises a primary conductor (11), a secondary winding (12), a first magnetic circuit (10), and at least one second magnetic circuit (20). The first magnetic circuit (10) is such as to surround said primary conductor (11), which is related to a phase protected by the protection device; at the same time, the first magnetic circuit (10) constitutes the core of said secondary winding (12) that is used for supply of the protection device. The second magnetic circuit (20) is structurally separated from the first magnetic circuit (10), but is operatively connected thereto for subtracting part of the first magnetic flux generated within it by the current circulating in the primary conductor (11).

Abstract: Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in parallel; PTC current-limiting device connected to the first and second switches in parallel or series and allowing a change of current flow direction from the first switch to the second switch at a fault current; a movable arm to which the movable contact points are installed at an interval therebetween and opening/closing the switches by operating the movable contact points; a fixed arm including first and second fixed arm conductors for guiding current flow toward the first fixed contact point in a normal load current mode and guiding current flow toward the second fixed contact point via the PTC current-limiting device in a fault current mode; and a successive trip means for elastically biasing the second switch by operation of the movable arm in

Abstract: The moving contact unit (10) is intended for a contact arrangement in a circuit breaker and contains a contact mount (13) and a contact piece (11, 111, 112), which is held by the contact mount (13). The contact mount (13) is arranged on a pivoting shaft (12), which can be mounted in the switch, and is fitted with a catch (135) which can pivot, and with a tripping lever (14) which can pivot and, together with the catch (135), forms a latching point. A simple configuration for the contact unit and for the contact arrangement which holds this contact unit is made possible, despite stringent requirements for maintenance of the circuit breaker and despite a high disconnection rating in that the tripping lever (14) is also arranged on the pivoting shaft (12) alongside the contact mount (13), and in that the contact piece (11) is placed on the contact mount (13) and is held by at least one prestressed bending spring (51), which is mounted on the pivoting shaft (12).

Abstract: A breaker includes a housing (10) having two terminals (11, 12), two bars (17, 18) electrically coupled to the terminals (11, 12), an arm (30) supported in the housing (10) and movable to engage with the bars (17, 18) to electrically couple the terminals (11, 12) together. A control device (4) may control the arm (30) to engage with the bars (17, 18), and includes a lever (50) to maintain the arm (30) in engagement with the bars (17, 18). A spring (33) may bias the arm (30) away from the bars (17, 18), and another spring (53) may be engaged with the lever (50) to bias and disengage the lever (50) from the arm (30).

Abstract: An improved paralleled multiple pole circuit breaker employs a conductive element of known resistance connected in series within each pole. A bridging conductor electrically connects together the poles and balances the current flow therethrough at a location between the sets of separable contacts and the conductive element of each pole. The conductive elements are mass-produced plate-like blades of a material having a resistance that is substantially fixed and is substantially independent of temperature. During operation, the voltage drop across one of the conductive elements can be determined by directly measuring the voltage drop between the ends of the conductive element without additionally interposing copper, solder, or other materials between the locations on the conductive element across which the voltage drop is determined.

Abstract: An electric pole for a low-voltage power circuit breaker, comprising an insulating enclosure (20, 30) that has a lower wall, an upper wall, two side walls, a rear wall and a front wall, at least one arc chute, at least one fixed contact (8) and at least one moving contact (9) that can be mutually coupled/uncoupled, and a first electric terminal (10) and a second electric terminal (11) that are functionally associated with the fixed contact and the moving contact and allow electrical connection of the pole in input and in output, its particularity consisting of the fact that the insulating enclosure comprises a first half-shell (20) and a second half-shell (30) which are mutually coupled along corresponding coupling surfaces and form a self-supporting structure, the first and second half-shells being shaped so as to form at least one compartment (12) that is suitable to accommodate the fixed contact and the moving contact and the arc chute, and second (13) and third containment volumes (14), which are arranged

Abstract: An on-board circuit breaker that includes a push-button that enables the circuit breaker to be reset by depressing it, a power supply terminal and distribution terminal, two breaking contacts, and a main bimetal strip. Thermal deformation of the main bimetal strip trips the circuit breaker. The circuit breaker further includes an actuator able to trip the circuit breaker and an electronic circuit monitoring the electric signal. The electric signal is monitored to trip the actuator when predefined particular situations are identified. The circuit breaker also includes a movable reset enable part equipped with a pin. When the circuit breaker is tripped, the reset enable part moves in such a way that resetting the circuit breaker is possible only by depressing the reset enable part before or when the push-button is depressed.

Abstract: A circuit breaker including a housing, separable contacts, a cradle rotatably mounted within the housing, an alarm switch mounted within the housing, and an interface lever disposed between the cradle and the alarm switch. The cradle is adapted to rotate about a first axis in a first direction when the circuit breaker moves to a tripped position in which the separable contacts are separated from one another. The alarm switch includes an actuation lever movable in an actuation direction, wherein movement of the actuation lever in the actuation direction causes the alarm switch to activate an alarm device electrically connected thereto. When the cradle rotates in the first direction, the cradle exerts a first force against the interface lever that causes the interface lever to exert a second force against the actuation lever that causes the actuation lever to move in the actuation direction.

Abstract: A linkage for a solenoid actuated circuit breaker operating mechanism is provided. The operating mechanism includes a trip device and a close device. Either the trip device or the close device is coupled to a solenoid, by an ultra-lightweight connection member. The ultra-lightweight connection member is so light as to not create a sufficient force to effect the trip device or the close device even when the circuit breaker is subjected to a shock load.

Abstract: The circuit breaker is intended for installation in a low-voltage distribution board having a socket and having at least two busbars which are guided parallel, are held on the socket and are each associated with one pole conductor of a multiphase power supply system. This circuit breaker has an enclosure as well as a plug contact for making contact with one of the busbars. The plug contact can be positioned as a function of the position of the busbar with which contact is to be made, and is held on a contact mount, which can be moved transversely with respect to the busbars and can be locked to the circuit breaker enclosure. In a circuit breaker such as this, a pole conductor change from one busbar to another busbar can be carried out quickly and without the use of any tools.

Abstract: The invention relates to a simulation switch for incorporation into a flight simulator and to the simulation of an excess-current circuit breaker which can be manually actuated using an actuating element (10). The inventive simulation switch comprises a switching mechanism that is identical to the switching mechanism of the excess-current circuit breaker (9) for opening and closing a switching contact (2, 4), in addition to an electromagnetic release device (20) for releasing the closed switching contact (2, 4) by means of a control current (i).

Abstract: A high-temperature shutdown protecting relay comprises a base; a L copper pin and a N copper pin are provided on the base with resting contacts provided at their bottoms respectively; stretchy copper blades are provided on the base, which are fit to the L copper pin and the N copper pin respectively, with movable contacts provided thereon, which are fit to said resting contacts; a stand is provided on the base and above the stretchy copper blades; grooves are provided on the lower side of the stand with ceramic rods for insulating the stand from the stretchy copper blades embedded therein. The high-temperature shutdown protecting relay provided by the present utility model can keep normal operating property under high temperature.

Abstract: A U-shaped accessory actuator clip that snaps onto the crossbar of a multipole circuit breaker is integrally molded of a compliant material with a flexible finger that actuates/deactuates an accessory, such as an auxiliary switch, as the contacts of the breaker close and open.

Abstract: A circuit interrupting device having a reverse wiring protection function is disclosed. The circuit interrupting device includes a housing having a cover and a base, a mounting plate, and an electrical component mounting member, a pair of input hot and neutral conductors and a pair of output hot and neutral conductors, a differential transformer for detecting a leakage current, a disconnecting mechanism for connecting and disconnecting the output conductors to and from input conductors, and a mechanism for preventing reverse wiring, which includes a coil connected to the input hot and neutral conductors and a moveable piece that moves when the coil is energized. The input and output conductors are electrically connected only when the coil is energized by correctly connecting the power wires to the input conductors of the device. This device thus provides both leakage current protection and reverse wiring protection that protects against incorrect wiring during installation.