Abstract: A latch system for an electrical equipment enclosure includes a chassis and a latch arm, engaged with a circuit breaker, that moves between first, second, and intermediate arm positions. A handle operatively connected to the circuit breaker is movable between ON, TRIP, OFF, and RESET handle positions. The handle is operatively connected to the latch arm such that the latch arm is positioned in the second arm position when the handle is located in said RESET handle position. The latch arm spring biases the latch arm into the first or intermediate positions when the handle is in the ON, TRIP, or OFF handle position. A lockout plunger is connected to the handle to rotate with the handle and is movable between disengaged and engaged positions. The lockout plunger prevents movement of the handle from the OFF to the ON handle position when the lockout plunger is in its engaged position.

Abstract: A push-button switch assembly with means for indicating a switch status includes: an actuation head for actuating the push-button switch assembly, the actuation head having a disc-shaped upper part and a tubular lower part; a sleeve-type push-button guide which is coupled to the actuation head such that, in relation to a longitudinal axis of the push-button switch assembly, the upper part is arranged above the push-button guide and the lower part surrounds the push-button guide; a sleeve-type locking unit for determining a switch status of the push-button switch assembly, the sleeve-type locking unit being arranged within the push-button guide in relation to the longitudinal axis and being transferrable between a first and a second locking state by the actuation head, the locking unit having a plunger sleeve and an annular detent catch coupled to the plunger sleeve, which delimit a central through-opening through the locking unit.

Abstract: A power distribution system includes a plurality of bus plugs. Each of a respective bus plug of the plurality of bus plugs includes an electrical switch configured to selectively control a corresponding energization of the respective bus plug and an actuator operable to control a corresponding electrical switch. The system includes a remote application having commands defining the energization of at least one of the plurality of bus plugs. The system further includes a communication module configured to communicate the commands from the remote application to the at least one of the plurality of bus plugs. The commands cause the corresponding actuator to control the corresponding electrical switch. Methods of controlling energization of a bus plug with a remote application and communication module configured to operate an actuator are also provided.

Abstract: An information processing apparatus includes: a casing which includes a side plate on each of left and right sides; and a processing apparatus to be mounted in the casing, wherein the processing apparatus includes: a board on which an arithmetic processing device and a storage device are mounted; a rail which is provided on each of the left and right sides of the board and extends in the horizontal direction to make the board slidable; a locking portion which locks the board to the casing; and a detection portion which detects that the board is taken out when the board is taken out from the casing by that locking by the locking portion is released and the board slides against the rails.

Abstract: A trip for electrical switching device including a protective housing, first electrical connection terminals, and a supply module including at least one transformer and second input and output terminals able to be connected to the first connection terminals according to a direction of connection. The supply module is able to generate a supply voltage on the basis of an input voltage received between the second input terminals and to deliver the supply voltage between the second output terminals. The supply module is movable with respect to the protective housing.

Abstract: An information processing apparatus includes: a casing which includes a side plate on each of left and right sides; and a processing apparatus to be mounted in the casing, wherein the processing apparatus includes: a board on which an arithmetic processing device and a storage device are mounted; a rail which is provided on each of the left and right sides of the board and extends in the horizontal direction to make the board slidable; a locking portion which locks the board to the casing; and a detection portion which detects that the board is taken out when the board is taken out from the casing by that locking by the locking portion is released and the board slides against the rails.

Abstract: A remote control device for a vehicle includes an interior handle coupling lever that rotates in accordance with manipulation of an interior manipulating handle, an exterior handle coupling lever that rotates in accordance with manipulation of an exterior manipulating handle, and a switch device. The switch device includes an interior manipulation detector for detecting rotation of the interior manipulating handle, an exterior manipulation detector for detecting rotation of the exterior manipulating handle, and wiring members each having a detector connection terminal and an external connection terminal connected to the interior manipulation detector or the exterior manipulation detector. The remote control device further includes a body and a housing. The body accommodates the interior manipulation detector, the exterior manipulation detector, and the wiring members and has a connector portion enclosing all of the exterior connection terminals for the wiring members. The housing covers the body.

Abstract: An electronic device includes a main body, a handle, a fastening block element, a controlling unit, and a driving element. The handle is connected to one side of the main body and has a fastening groove. The fastening block element is disposed in the main body and detachably engaged with the fastening groove. The controlling unit is disposed in the main body and sends an unlocking signal after a shutdown process is performed. The driving element is disposed in the main body and electrically connected to the controlling unit. After the driving element receives the unlocking signal, the fastening block element is released from the fastening groove, thereby enabling the handle to protrude from the main body.

Abstract: A building device with a front accessible address programming interface is provided. The building device includes a mounting base having front and rear surfaces. The front surface defines two connector channels extending towards the rear surface. The connector channels are spaced apart and sized to each receive a respective prong of a programming device connector plug. The building device further includes external terminals disposed on the rear surface, internal terminals, a group of normally closed switches having a common control input, and an actuator. Each switch connects an external terminal to a respective internal terminal when the common control input is deactivated to provide a network connection. The actuator is connected to the common control input and disposed such that the connector plug engages the actuator to activate the common control input of the switches when each of the connector channels receive a respective prong of the connector plug.

Abstract: A monitoring system is provided for monitoring a status of current supply through a current supply conductor 5 in an electrical housing 1. A current transformer 13 and a monitoring circuit 15 monitor the conductor 5 in the housing 1. The monitoring circuit 15 is powered by current induced in the transformer from current in the conductor. The monitoring circuit 15 is configured to output a signal on an output line 14 indicating whether the current in the conductor is on or off. The monitoring circuit 15 is connected to at least one of a display device 24 and a door interlock 8 of a door of the housing 1 to, respectively, indicate whether the current in the conductor 5 is on or off and to prevent the door 17 of the housing 1 from opening when the signal on the output line 14 indicates that the current is on.

Abstract: A mechanical switch-door interlock assembly includes a mounting assembly and an actuator assembly. The actuator assembly includes a body, a door sensor, an operating mechanism handle actuator, and a number of sliding coupling components. The actuator assembly body is slidably coupled to the mounting assembly. The actuator assembly body moves between a first position, wherein the operating mechanism handle actuator does not operatively engage the operating mechanism handle, and a second position, wherein the operating mechanism handle actuator operatively engages the operating mechanism handle and moves the operating mechanism handle to the second position. When a door is in a first position, the door operatively engages the door sensor and moves the actuator assembly body to the first position. When the door is in the second position, the door does not operatively engage the door sensor allowing the actuator assembly body to move into the second position.

Abstract: A contact slider unit is disclosed for a switching unit, in particular for a circuit breaker, having a contact slider and a contact piece. In an embodiment, the stabilising element preventing bridge rotation is arranged on the contact piece.

Abstract: A power-switching device with interlock mechanism has a housing with a rotary knob, a slider slidably moved into a rotation range of the rotary knob, and an activation switch mounted on a sliding path of the slider. The activation switch has a control button located on an overlapped portion of the sliding path of the slider and the rotation range of the rotary knob. When the slider approaches the rotary knob, the activation switch is activated and the rotary knob is unable to rotate for being blocked. When the slider departs from the rotary knob, the activation switch is deactivated and the rotary switch is rotatable. Accordingly, when manually bypassing a UPS by turning the rotary knob, users will not forget to deactivate the activation switch, thereby avoiding damaging the UPS.

Abstract: An improved circuit interrupter assembly provides enablement of an interlock feature for a circuit interrupter situated within a cabinet having an external handle for switching the circuit interrupter between ON and OFF conditions when the cabinet door is closed. The improved circuit interrupter assembly includes a motion transfer apparatus that provides such enablement of the interlock feature for cabinets of any of a variety of depths. The motion transfer apparatus includes a Bowden cable that extends between a first retention assembly situated at the door of the cabinet and a second retention assembly situated at the interlock feature of the circuit interrupter. The Bowden cable has a biased drive cable that extends between a pair of elements and which thus transfers the motion of the cabinet door in its closed position to enable cooperation with the interlock.

Abstract: A busplug enclosure includes a body member includes a plurality of wall members that collectively define an interior chamber having an opening. The body member includes a line portion and a load portion. A cover assembly is mounted to the body member across the opening. The cover assembly includes a first cover member spanning the load portion and a second cover member spanning the line portion. A handle operating mechanism is mounted to the cover assembly. The handle operating mechanism includes a handle member configured to rotate about an axis extending through the cover assembly, a cam member and a slider member. The handle member is operatively coupled to the cam member and the slider member and configured and disposed to move between a first position and a second position.

Abstract: A power-switching device with interlock mechanism has a housing with a rotary knob, a slider slidably moved into a rotation range of the rotary knob, and an activation switch mounted on a sliding path of the slider. The activation switch has a control button located on an overlapped portion of the sliding path of the slider and the rotation range of the rotary knob. When the slider approaches the rotary knob, the activation switch is activated and the rotary knob is unable to rotate for being blocked. When the slider departs from the rotary knob, the activation switch is deactivated and the rotary switch is rotatable. Accordingly, when manually bypassing a UPS by turning the rotary knob, users will not forget to deactivate the activation switch, thereby avoiding damaging the UPS.

Abstract: A power-down electrical locking protection device for an underground explosion protection frequency converter comprises a reversing control part and a locking control part. The reversing control part comprises a reversing handle (1), a sector plate (2) of a reversing switch, and an isolated reversing switch (3). The locking control part comprises a locking button (4), a locking positioning plate (5), and an auxiliary control point (6). The reversing handle (1) is fixedly connected to the sector plate (2). The reversing handle (1) is connected to the isolated reversing switch (3). The locking button (4) is fixedly connected to the locking positioning plate (5). The locking button (4) is connected to the auxiliary control point (6). A positioning stud (7) is fixed outside a cupboard door (8). The locking button (4) is electrically connected to a PLC module and a power supply. The isolated reversing switch (3) is connected to a discharge resistor.

Abstract: A sealed electrical enclosure used in hazardous locations for enclosing circuit breakers having a bottom housing and a removable top housing with a labyrinth joint or serrated joint formed therebetween, the bottom housing adapted to receive one or more circuit breakers, a first metal bus extending from a point internal to the bottom housing through a first end wall to a point external thereto, and a second metal bus extending from a point internal to the bottom housing through a second end wall to a point external to thereto, where the first and second metal buses are adapted to contact first and second electrical terminals of a circuit breaker when placed within the bottom housing, and a first lug retaining bracket secured to the bottom housing and extending to a position beneath the first metal such that a bottom portion of a connector assembly may fit within the space between the end of the lug retaining bracket and the bottom of the first metal bus.

Abstract: A transfer switch for interconnection in a power supply system for an electrical load, such as a traffic signal, for selectively switching between primary and alternate power sources. The transfer switch includes a housing having a cover that is movable between open and closed positions for selectively providing access to an interior. An input receptacle is configured to engage an electrical connector of the alternate power source. The input receptacle is movable between a first position for facilitating engagement of the connector with the receptacle when the cover is open, and a second position when the cover closed. A selector switch is contained within the interior and interconnected with the load and the primary and alternate power sources. The selector switch selectively connects the primary power source and the alternate power source to the load, and the cover prevents access to the selector switch when the cover is closed.

Abstract: A test button is disclosed for an electrical switching device, especially for a circuit breaker; and an electrical switching device is disclosed, especially a circuit breaker, with a test button. The test button is at least one embodiment is embodied for actuation of a tripping mechanism of the electrical switching device. In this case, the test button actuates the tripping mechanism on the one hand if the test button is actuated manually and on the other hand if a cover element of the electrical switching device is opened. The actuation of the tripping mechanism by way of the test button ensures that the electrical switching device cannot be switched on or tripped respectively.

Abstract: An interlock contact block providing an automatic electrical disconnect for pushbutton operated contact blocks when components of the pushbutton switch assembly become sufficiently loose or dislodged from one another that proper operation of one or more contact blocks associated with the switch assembly can not be operated by the pushbutton assembly.

Abstract: An enclosure described herein satisfies the requirements of a NEMA 4X enclosure, and is capable of being used in food and beverage plants, and other washdown environments. The enclosure includes a housing and a removable cover coupled to the enclosure. The cover is flush with the housing, and both the housing and the cover have a smooth exterior finish. A sealing gasket having a thickness greater than the cover is positioned between the cover and the housing. The enclosure generally houses at least one switch therein. The cover includes a handle and switch mechanism that controls the switch(es) when the cover is coupled to the housing.

Abstract: A switching device includes a switching appliance, a cap, at least one connecting device for firm connection of the switching appliance to the cap, and a monitoring device. In at least one embodiment, the monitoring device includes a sensor and a tripping element, whose position is variable after connection and which, when the switching appliance is ready to operate, is located in a position in which the tripping element can be detected by the sensor, the monitoring device further including a signal unit which is connected to the sensor and is used to signal operational readiness once the sensor has detected this.

Abstract: An interlock switch includes a switch mechanism. The switch mechanism includes a switch having an arm as an actuator, a holding member to which the switch is fastened by a rocking mechanism, the holding member being rotatably disposed in an apparatus body, one pressing member which presses the arm from the arm side, other pressing member which presses the holding member from the side opposite to the arm side, one elastic member which regulates the ON position of the switch in a releasing direction in arm-side view, and other elastic member which applies a force to the switch in a direction in which the one pressing member comes close to the switch. The switch is turned on when the one pressing member presses the arm from the arm side and the other pressing member presses the holding member from the side opposite to the arm side.

Abstract: The invention concerns an anti-interference advice for a housing (1) including at least two electrically conductive terminals (32, 33) distinctly positioned on an electronic card (30) and connected to processing means, a protective circuit (45) positioned relative to the two electrically conductive terminals (32, 33) in such a manner as to close the electrical circuit during the normal utilization position of the housing (1), the protective circuit (45), including means adapted for opening the electrical circuit closed in response to a deterioration in the protective circuit (45).

Abstract: An interlock contact block providing an automatic electrical disconnect for pushbutton operated contact blocks when components of the pushbutton switch assembly become sufficiently loose or dislodged from one another that proper operation of one or more contact blocks associated with the switch assembly can not be operated by the pushbutton assembly.

Abstract: A system and method according to which one or more sliders are actuated in order to, for example, operate one or more switches such as, for example, one or more circuit breaker switches.

Abstract: An interlock switch includes a switch mechanism. The switch mechanism includes a switch having an arm as an actuator, a holding member to which the switch is fastened by a rocking mechanism, the holding member being rotatably disposed in an apparatus body, one pressing member which presses the arm from the arm side, other pressing member which presses the holding member from the side opposite to the arm side, one elastic member which regulates the ON position of the switch in a releasing direction in arm-side view, and other elastic member which applies a force to the switch in a direction in which the one pressing member comes close to the switch. The switch is turned on when the one pressing member presses the arm from the arm side and the other pressing member presses the holding member from the side opposite to the arm side.

Abstract: A system and method according to which one or more sliders are actuated in order to, for example, operate one or more switches such as, for example, one or more circuit breaker switches.

Abstract: The present invention relates to an anti-intrusion device for the protection of housings. It applies in particular to the protection of a housing of an electronic payment terminal or of a housing for entering a confidential code (also known as a “PIN-pad”). The anti-intrusion device according to the invention makes it possible to detect any attempts to open a housing. It comprises at least one spring (3), the spring being arranged in such a way as to be under pressure and to act electrically on an electronic circuit (2) when the housing is closed, and to no longer act on the electronic circuit when the housing is open.

Abstract: A control unit including a monitoring apparatus is disclosed, with the monitoring apparatus having an operating element and an attachment element. In at least one embodiment, the control unit is in two parts and includes an operating unit and switching elements. The required spatial association between the operating unit and the switching element is intended to be monitored in a cost-effective and reliable manner. For this purpose, when the monitoring apparatus is installed correctly, at least one second switching element can be operated by way of an operating member, and a first switching element is operated at the same time by way of the operating element of the monitoring apparatus.

Abstract: A system and method according to which one or more sliders are actuated in order to, for example, operate one or more switches such as, for example, one or more circuit breaker switches.

Abstract: A switching system includes switchgear that can be contacted via pin contacts. In at least one embodiment, the switching system is provided with pin contacts and mating pin contacts and at least one device(s) for the transmission of force onto the switchgear, thereby allowing to establish and interrupt contact to the switchgear even when only little space is available.

Abstract: There is provided an electronic device that enables and ensures the detection of the open/close condition and attached condition of a plurality of cover bodies by only one detection switch. Therefore, an electronic device comprises an upper cover, a front cover, an actuator, and a mechanical switch. The upper cover is provided openable and closable with respect to a rolled sheet holder storing case, and the front cover is removably attached on the rolled sheet holder storing case for covering a component, which is housed in the rolled sheet holder storing case. The actuator is provided on the front cover, and it makes an action when the upper cover is closed to the rolled sheet holder storing case, and the mechanical switch detects the action of the actuator.

Abstract: An electrically controlled actuating element is arranged on a machine by a flange connection consisting of a mounting flange (4) and a machine flange (2), and is controlled by an electric control subsystem (6). Embedded in the mounting flange (4) in a predetermined geometric pattern is a plurality of electric switches (7.1-7.8, 8.1-8.8). Each switch is arranged in an electric circuit that connects to the control subsystem. In the machine flange (2), closing elements are arranged in some marking points of the geometric pattern in a geometric arrangement that is characteristic of the respective machine and associated to it. In an existing flange connection, the switches located in the respective marking points can be actuated by the closing elements. The control subsystem (6) of each consumer is provided with a memory (11), which stores the geometric arrangement of the closing elements that is characteristic of and associated to the machine.

Abstract: A mounting base for switch packages having a mounting flange is provided. The base includes a body having a first receptacle and a second receptacle, and each of the first and second receptacle is configured to accept a mounting flange of the switch package with snap-fit engagement. The first and the second receptacles are inverted relative to one another and allow mounting of the switch package with a fewer number of fasteners.

Abstract: A tool is provided to manipulate an electrical switching apparatus, such as a circuit breaker, with respect to a housing structure. The circuit breaker has a mechanical interface. The tool includes an actuating mechanism having a plurality of segments and joints, which movably connect the segments. One segment is engageable with the mechanical interface of the circuit breaker. Another segment comprises a handle portion structured to be gripped by a user. The actuating mechanism is movable between a first position in which the segments are substantially parallel with respect to one another, and a second position in which adjacent segments are substantially perpendicular to each other. When disposed in the first position, the tool is stowable in an opening of the circuit breaker. When disposed in the second position, the tool is operable to move the circuit breaker in a predetermined manner with respect to the housing structure.

Abstract: A retrofit assembly structured to allow a CM22 type circuit breaker to engage, and be enclosed by, a CMD type circuit breaker tank is provided. The retrofit assembly includes a levering mechanism, a circuit breaker bus assembly having bus support members, and a door handle system structured to allow a user to actuate the circuit breaker contacts when the tank is closed.

Abstract: An interlock assembly for a safety switch includes a linkage. A first end of the linkage is coupled to the operating handle of the safety switch in order that moving the operating handle results in a corresponding movement of the second end of the linkage into and out of an aperture in a bracket member. The bracket member is movably coupled to the safety switch enclosure by a fastening mechanism. When the cover of the safety switch is disposed in its open position, the bracket member is disposed in a first position preventing the second end of the linkage from entering the aperture and resisting undesired movement of the operating handle. When the cover is closed position, the bracket member is moved to a second position corresponding to the second end of the linkage being receivable by the aperture in order that the operating handle is movable.

Abstract: An embodiment of the invention relates to an electrical installation unit for making contact with electrical loads, wherein the installation unit has at least two contact elements. In at least one embodiment, an installation unit is disclosed in which an electrical connection provided between the two contact elements is necessarily interrupted when the installation unit is dismantled. In at least one embodiment, the installation unit includes at least one device for interrupting the conductive connection leading to the contact elements when the installation unit is dismantled. This at least one device, in at least one embodiment, includes two connecting elements in a switching element of the installation unit and, for example, a contact pin consisting of a conductive material, which produces a conductive connection between the connecting elements in a properly installed state of the installation unit.

Abstract: An electromagnetic switching device includes an electromagnetic drive device and at least one electrical contact that, when a starting current is applied to the drive device, can be transferred by the drive device from a disconnect position (contact opened) into a bridging position (contact closed). When the switching device is fully installed, the contact can be blocked in the disconnect position and can be mechanically blocked in the disconnect position by an arresting element that can be connected to the switching device. As a result, the contact remains in the disconnect position even when the starting current is applied to the drive device.

Abstract: The present invention relates to an anti-intrusion device for the protection of housings. It applies in particular to the protection of a housing of an electronic payment terminal or of a housing for entering a confidential code (also known as a “PIN-pad”). The anti-intrusion device according to the invention makes it possible to detect any attempts to open a housing. It comprises at least one spring (3), the spring being arranged in such a way as to be under pressure and to act electrically on an electronic circuit (2) when the housing is closed, and to no longer act on the electronic circuit when the housing is open.

Abstract: A press key structure comprises two first plates disposed between a casing and a circuit board, wherein one side of each first plate is exposed to the outside of the casing, the other side thereof faces the circuit board and includes a groove, and each of the grooves includes a trigger module disposed at the position corresponding to a first triggering portion on the circuit board, and a second plate includes a pressing portion and two elastic connecting portions, wherein the elastic connecting portions are disposed at two ends of the pressing portion at the positions corresponding to the two first plates respectively, a surface of the pressing portion is exposed to the outside of the casing, the other surface thereof faces a second triggering portion on the circuit board, and the two elastic connecting portions are respectively accommodated in the grooves so as to place the pressing portion at the position between the two first plates and extend the other ends of the elastic connecting portions out from the

Abstract: The present invention relates to an electrical receptacle having a safety mechanism. The electrical receptacle includes a latch installed internally, where the latch is operated through a switch member positioned externally. The latch can be switched to a locking position or an unlocking position by the switch member. In the locking position, the plug is constrained to be unplugged or the plug is restricted to be inserted. In the unlocking position, the plug is free to be inserted or unplugged.

Abstract: A microwave oven, is designed such that its switches accurately sense whether a door is open or not when opening or closing the door, thus preventing microwaves from leaking out. The microwave oven includes a hook unit, a hook locking unit, a locking step, and a sensing switch. The hook unit is mounted to the door functioning to open or close a cabinet. The hook locking unit is installed in the cabinet to engage with the hook unit. The locking step is provided in the hook locking unit to catch the hook unit when the hook unit enters the hook locking unit. The sensing switch is installed in the hook locking unit to sense whether the hook unit enters the hook locking unit. A screw holding unit is provided on a predetermined portion of the locking step to hold a setscrew which functions to mount the hook locking unit to the cabinet.

Abstract: A combination of a switch which is controllable by a grip and a receiving means for fuses held in a swivelable flap, the switch being provided on a mains side of the receiving means for the fuses and being converted by a housing, the flap being locked with the grip in a closed switching position, the grip of the switch being held in the flap of the receiving means for the fuses, and the grip being insertable on an actuating shaft of the switch merely in an opened position thereof.

Abstract: A breaking mechanism includes a latch receiver engaging a latch to allow a movable contact shoe to be closed, and a tripping device for rotationally driving the latch receiver to disengage the latch to open the movable contact shoe. An engaging surface of the latch engaging the latch receiver is formed as a projecting circular surface, whereas an engaging surface of the latch receiver engaging the projecting circular surface is formed as a recessed circular surface having a radius of curvature greater than that of the projecting circular surface. The center of the curvature of the recessed circular surface coincides with the axis of a support shaft supporting the latch receiver. The loads causing a tripping device to drive the latch receiver do not change even if the location of an engaging point is changed.

Abstract: A normal position detecting mechanism for detecting a position of a functional component in a heating apparatus includes a drive member mounted on the functional component, a drive unit assembly mounted on the heating apparatus, and a switch for generating a detection signal. The driven unit assembly includes a switch actuating member, a bracket for supporting the switch actuating member, and a biasing member arranged between the mounting bracket and the switch. The biasing member applies a bias force for driving the switch actuating member against the direction for generating the detection signal. The drive member is positioned facing the switch actuating member when the functional component is in its normal position so that the drive member provides a force to move the switch against the biasing force to generate a detection signal.

Abstract: An interlock device for a casing of double door structure can enable power supply with one switch only when both doors are closed. The interlock device includes a lever pivotably supported at an intermediate portion and being pivoted in a predetermined direction as pushed one end portion by the first door when the first door is closed, a link member responsive to pivot motion of the lever to the predetermined position and driven by the other end of the lever to be moved from a first position on the side of the first door to a second position on the side of the second door, a pushing member mounted on the link member and responsive to closure of the second door while the link member is placed at the second position, to be pushed into a third position, and a switch responsive to the pushing member placed at the third position to turn ON power supply for the apparatus.

Abstract: An automatically operating interlock device prevents access to the interior of an electrical cabinet when the device within the cabinet is electrically connected with a power supply. The interlock device is particularly suited for arc resistant circuit breaker cabinets. The circuit breakers within such cabinets typically move from a rearward position within the cabinet, wherein a pair of stabs on the back of the circuit breaker are electrically connected to a corresponding pair of quick disconnects, and a forward position within the stabs are disconnected from the quick disconnects. A levering in assembly including a levering in block controlled by a threaded rod is typically used to move the circuit breaker from one position to the other. The interlock device includes a cam pivotally secured near the forwardmost position of the levering in block, and a locking bar pivotally secured to the cam. The cam is biased so that the locking bar engages the cabinet door.