Abstract: An interlockable lock-out handle system for an electrical switching device includes a lock-out rim and a lock-out handle. The lock-out rim is configured to be disposed over an operating shaft of the switching device and fastened to at least one of switch housing and a front plate. The lock-out handle is configured to be fastened by a clamping device in rotational engagement on the operating shaft. The lock-out handle includes a rotary handle having a grippable lateral surface and a lock-out collar. The lock-out collar is vertically displaceable relative to the rotary handle in a direction of a longitudinal axis of the operating shaft into a CLOSED position and an OPEN position. The lock-out collar is engaged with the lock-out rim so as to prevent twisting movement of the lock-out collar relative to the lock-out rim when the lock-out collar is in the CLOSED position.

Abstract: A locking device comprising a safety lock switch unit for adjacently located the motor switch. The safety lock switch unit has a lock part and a piece of the action element therewith a control end extended to the motor switch. The locking device can control the handle of the motor switch cannot move.

Abstract: An electrical switch includes a rotary switch actuator device, and an actuator locking device. The actuator locking device inhibits the rotation of the rotary switch actuator device when the contacts of the switch are closed. Only when the operator tries to open the switch with an operating handle and the contacts do actually open, a lock release device will release the actuator locking device, and allow the operator to move the operator handle to the position corresponding to the open condition. When the contacts do not open, e.g., because they are welded, the actuator locking device will remain locked and the handle movement is blocked. This provides a robust and safe switch that never gives a false “OFF” indication.

Abstract: A turning knob with a lock for an electric circuit indicating a body for receiving a barrel rotating relative to a stator. The barrel includes springs receiving a key configured while rotating to take up at least two functional retained or released positions and having at one of its ends a shank configured to be actuated by rotating the key. The body has an inner cylindrical sleeve whereon the stator is urged to be positioned, the inner sleeve having a number of identical members for positioning the stator, each positioning member of the inner sleeve matching a corresponding positioning member of the stator, so as to select the position of the stator relative to the body.

Abstract: A safety holder is provided that firmly attaches to a safety switch so that safety of a worker is enhanced. The safety holder includes a base body 21 that is inserted into an actuator insertion opening 7, and limits rotation of a drive cam 9 by engaging at a tip end portion (hanging portion 21C) thereof with a concave portion of the drive cam 9 of the safety switch, and a slide body that is movably attached to the base body 21 so as to be insertable into an actuator insertion opening 8 with the base body 21 inserted in the actuator insertion opening 7, and when the slide body is inserted into the actuator insertion opening 8, that enters and engages with an engagement hole 36 of the base body 21 whose tip end portion (insertion arm 34) is being inserted into the insertion opening 7.

Abstract: An electrical connector assembly (10) incorporates a connector (12) with a switch and is designed to electrically and mechanically connect and disconnect to a mating electrical device (14) while maintaining a closed circuit continuously through the connector. The mating electrical device includes a plurality of conductive contacts (20). The electrical connector includes an insulating housing (30) with at least a pair of input and output terminals (32) mounted on the housing. The terminals include contact portions (32b) for engaging the contacts of the mating electrical device. A switch mechanism (40; 60) is movably mounted on the housing for movement between a connecting position and a disconnecting position. The switch mechanism includes a latch member (48; 17) and at least one switch terminal (44). In the connecting position, the latch member is interengaged with a latch (26; 62) on the mating electrical device with the switch terminal out of engagement with the input and output terminal.

Abstract: The present invention provides a circuit interrupting device which is capable of providing protection against electrical surge through its innovative electrical discharge design; establishing or discontinuing electrical continuity among the input power source, output load, and user accessible load through its innovative contacts connection/disconnection design; automatic or manual testing of the condition of the key components in the circuit interrupting device by way of a simulated leakage current; and testing whether the device is properly wired by way of a reset switch.

Abstract: An assembly for mutual mechanical blocking of actuation of a plurality of electrical switches includes a first locking mechanism assigned to a first switch and actuatable by an actuation device of the first switch, the actuation device being configured to transmit via Bowden cables at least one of an OFF position and an ON position of the first switch to a locking device of at least one other locking mechanism assigned to at least one other switch, the locking device including a two-armed rocker having a center portion configured to lock the at least one other switch and having lever arms, each of the lever arms having a respective bore configured to receive: (a) a driving element for a respective Bowden cable so as to provide a mutual locking of three switches, and (b) a fastening pivot pin for rotatable fastening of the two-armed rocker to a mounting plate that accommodates the first locking mechanism, so as to provide a mutual locking of two switches.

Abstract: A lock system includes a lock mechanism for holding a lid element in a locked state, an electric actuator for driving the lock mechanism to an unlocking side based on an operation of an open switch, and a key cylinder adapted to be operated to rotate by a key so as to be switched through the rotational operation to an “UNLOCK” position where the open switch is enabled to function and a “LOCK” position where the open switch is disabled from functioning, whereby unlocking of the lid element is prohibited through a rotational operation of the key cylinder to the “LOCK” position. An operating unit of the lock system causes the key cylinder and the lock mechanism to be mechanically linked with each other by a wire cable, whereby the lock mechanism is forcibly driven to the unlocking side through a rotational operation of the key cylinder to the “OPEN” position.

Abstract: The invention achieves the objective of ensuring that a solar installation mounted on a unit such as, for example, a residential house, can be safely switched off cost-effectively, whereby the consumers are to be galvanically disconnected from the solar installation, and the feed lines leading to the consumers are to be de-energized in case the safety switchgear has triggered a switch-off. A safety switchgear for a solar installation is proposed, whereby the solar installation consists of at least one photovoltaic element, of two connections, each to a feed line leading to a consumer, and said safety switchgear has a bypass that is situated between the two connections and upstream from the feed lines and that has at least one switching mechanism to close the contact points, whereby at least one additional switching mechanism for purposes of opening the contact points is arranged in each of the two feed lines.

Abstract: A circuit breaker, comprising a locking device, a secondary cover and a tripbar operatively associated with the locking device. The locking device comprises a lock assembly and a piston assembly operatively coupled with the lock assembly. A through hole for the lock assembly is provided in the secondary cover. The lock assembly has a locked position and an unlocked position, and the piston assembly has a work position and a rest position respectively corresponding to the locked and unlocked positions. The piston assembly is configured to prevent the tripbar from moving to a relatch position when it is in the work position, such that the circuit breaker cannot be turned on. The locking device is configured to be installed on the circuit breaker through the through hole.

Abstract: In actuating devices such as, e.g., multifunctional actuators, it is necessary in many cases to block at least one specific direction of movement. A simple and reliably operating device is proposed for this purpose, which uses an electromagnet to bring a ball from a rest position into a blocking position. In the blocking position, the ball mechanically blocks the relative movement between two parts.

Abstract: A control element is provided having programmable haptics, in particular a programmable central catch, for a motor vehicle, having a control knob which can be accommodated such that it can rotate, the control knob being connected in a force-fitting or interlocking manner to a toothed ring or having an integral design, and it being possible for the toothed ring (to be rotated by means of the control knob, and at least one latching element which can move towards the toothed ring and/or away from the toothed ring by means of an electromagnet.

Abstract: A switch device including a switch operation shaft movable between a plurality of operation positions for setting a control amount for an apparatus. A follower is driven to follow the movement of the switch operation shaft. An attraction member generates magnetic force to attract the follower so that the follower becomes immovable and to hold the switch operation shaft at a single operation position.

Abstract: A locking mechanism for protecting a ground fault circuit interrupter (GFCI) from being faultily reset. In one embodiment, the locking mechanism has a blocking member secured onto a lateral side of the movable assembly, a resilient member, and a locking member having a first end portion positioned against the resilient member, a second end portion positioned in relation to the blocking member, and a body portion defined between the first end portion and the second end portion. When the movable assembly is in a first (tripping) position, the expanding force of the resilient member applied to the first end portion of the locking member causes the second end portion of the locking member to be positioned against the blocking member so that no movement of the movable assembly from the first position to a second (resetting) position is allowed.

Abstract: A test kit for determining the presence of one or more analytes in a fluid sample, including an assay device together with a reading device which engages with the assay device and wherein precisely located engagement of the assay device with the reading device is essential for accurate reading of the assay result, where precisely located engagement of the assay device with the reading device causes a ‘lock-and-key’ interaction between the assay device and reading initiation means of the reading device. Preferably the reading initiation means includes switch actuating means including at least one fixed projecting portion and at least one displaceable projecting portion, and a contact portion of the assay device casing includes a recess shaped to accommodate the fixed projecting portion of the switch actuating means but not the displaceable projecting portion.

Abstract: Disclosed is an apparatus for selectively permitting electricity to flow to a power tool having a power cord. The apparatus comprises a body having an exterior surface and having a passage therethrough. The passage contains an electrical relay having an electrical input side and an electrical output side. A switch on the exterior surface of the body selectively closes the electrical relay upon activation by a user. A mounting portion on the body is adapted for securing the body to the power tool and a power receiving portion in the body receives the power cord of the power tool. The mounting portion has transfer wires associated therewith in electrical connection between the output side of the relay and a power switch of the power tool. The power cord is in electrical connection with the electrical input side of the relay.

Abstract: A receptacle including a front surface including one or more slots for receiving contact blades; a rear surface including one or more terminals for connecting the contact blades to a power source, the one or more terminals being line terminals and load terminals; a shutter positioned between the front surface and the rear surface of the receptacle, the shutter configured to be misaligned in relation to the one or more slots in order to obstruct a direct path between the contact blades and the one or more terminals, wherein insertion of an object in the one or more slots causes displacement of the shutter; and a shutter lock operatively connected in the receptacle to receive power from the power source connected to the receptacle.

Abstract: A lockable safety switch mechanism having a lockable switch mechanism that cooperates in an offset or skewed manner with an electrical switch. The lockable switch mechanism includes a switch plunger that is displaceable along a predetermined axis between a first position and a second position. A contour is formed along the switch plunger and cooperates with one or more locking mechanisms. A fork cooperates with the locking mechanism so as to selectively interfere with free movement of the switch plunger depending on the interaction between the contour and the locking mechanism. A link extends from one of the locking mechanism and the fork and interacts with a plunger of an electrical switch contact carrier so that an axis of movement of the switch plunger can be offset or skewed relative to an axis of movement of the electrical switch plunger.

Abstract: An electrical switch has at least two fixed contacts and a moving contact lever movable between an ON position making contact with one of the fixed contacts and an OFF position breaking contact with one of the fixed contacts. A rocker pivots in opposite directions between a first position, moving the contact lever into the ON position and a second position, moving the contact lever into the OFF position. A locking member associated with the rocker automatically locks the rocker in each of the first and second positions. The locking member is releasable to unlock the rocker upon manual movement of the locking member in a direction different from directions of movement of the rocker.

Abstract: A circuit breaker comprises a housing containing a trip mechanism, a handle coupled to the trip mechanism and movable between on and off positions, and a lock-off mechanism capable of holding the handle in its off position. The lock-off mechanism includes a base member adapted to be mounted on the circuit breaker housing adjacent the movable handle. A slide is mounted on the base member for movement to an advanced position in which a portion of the slide projects into the path of movement of the breaker handle for engaging the handle and blocks movement of the handle from the “off” position to the “on” position. In the retracted position of the slide, the path of movement of the handle is unobstructed by the slide.

Abstract: The invention relates to a device (1) for monitoring the state of a protective device (2), wherein said protective device (2) comprises a first element (4) provided with an opening (5) and a second element 6) which is movable with respect to the first element (4) in such a way that the opening (5) is closable at least partially, the device (1) comprises a locking device provided with a locking element (18) by which the close state of the protective device (2) is removably lockable and is blocked in the currentless state of the locking device, said locking device is activable by the movement of the protective device (2) from the open to the close state thereof.

Abstract: A safety lock as taught herein comprises first and second members and is configured to lockably mount to an interlock switch. In one or more embodiments, the second member slidably couples to the first member and slides between a disengaged position that allows for mounting and an engaged position that engages a corresponding switch actuator opening in the interlock switch. In at least one embodiment, the second member projects through an opening in the first member into engagement. The first and second members may include corresponding lock openings, allowing the second member to be locked into the engaged position. In at least one embodiment, the first member conforms at least partially to the exterior of the interlock switch, e.g., it spans at least one exterior corner of the interlock switch. The first member may include an engagement finger to engage a corresponding switch actuator opening of the interlock switch.

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: An electric switch which can be locked using any possible lock to either prevent or ensure the flow of electric power to an electrical apparatus. The switch has a toggle-handle that a bar from a lock can be fitted into and immobilize the toggle-contactor, preventing the toggle from being moved. Thus the switch is prevented from being turned on or turned off. The switch is intended to be placed into a power cord and can be sold with a device or added later.

Abstract: A locking apparatus for a manual actuation device of a switchboard plant has a trigger mechanism that is activated by an absence of a backup or a defective backup, and a locking mechanism for the manual actuation device. The locking mechanism is coupled to the trigger mechanism and is transferable by the trigger mechanism from a first position releasing the manual actuation device into a second position locking the manual actuation device. The locking apparatus has a simple and cost-effective construction, it is proposed that the locking mechanism has a cover plate which is displaceable between two positions by the trigger mechanism and which, in its first position, blocks a lever configuration under tensile force, of the locking mechanism and, in its second position, releases the lever configuration in order to lock the manual actuation device.

Abstract: An external operation handle device for a circuit breaker includes a rotary handle equipped with a handle lock lever, a drive mechanism linking the rotary handle and the locker handle of the circuit breaker, and a door lock lever for interlocking between the rotary handle and a door of the board. By operating the rotary handle, the circuit breaker can be turned to an ON or OFF position, and the door is unlocked at an OPEN position. The handle lock lever is slidably disposed on the rotary handle to be anchored and held at a pulled out position in a condition where the rotary handle at the OPEN position unlocks the door of the board, and the door lock lever linked to the rotary handle is cramped and held at the unlock position in a condition where the rotary handle is at the OPEN position.

Abstract: A saw switch box includes a supporting base resting on a switch platform, a switch shelter pivotally connected to the supporting base to define a sheltering cavity between the switch shelter and the supporting base for receiving a switch member, and a locking device for locking the switch shelter on the supporting base at the idle position. In which, at an operation position, the switch shelter is pivotally folded to a position that a contacting side of the switch shelter is adapted for contacting with the switch member to protectively shelter the switch member within the sheltering cavity in position while the saw machine is operating, and at the idle position, an operation side of the switch shelter is pressed to force the contacting side thereof for pivotally pressing the switch member downward to switch off the saw machine.

Abstract: A control unit for an electrical switching device comprises: a control shaft which is rotatable about a control axis for operating a moveable contact of the electrical switching device, a first blocking mechanism for the control shaft, which can be activated to block a rotary movement of the control shaft in a first rotation direction, and an activation mechanism for the first blocking mechanism, which is designed to activate the first blocking mechanism.

Abstract: Apparatus and methods for lockout of toggle switches, such as those toggle switches that include a captivating switch head (e.g., an enlarged and/or offset switch head) disposed on a cylindrical-shaped switch arm of the toggle switch. In one example, the apparatus and methods may employ a securement housing configured to be secured to a toggle switch by capturing at least a portion of the switch arm of the toggle switch between a switch head and an adjacent surface in a manner that prevents movement of the switch arm from a first switch position (e.g., “off” position) to a second switch position (e.g., “on” position).

Abstract: A base head member has a cam body receiving portion in a center portion thereof, bridge portions are provided in both sides of the cam body receiving portion, a shaft bearing portion is provided in both the bridge portions, and the cam body is held in the base head member by receiving the cam body in the cam body receiving portion and bearing a cam shaft to the shaft bearing portion, and a contact portion is formed in right and left sides of a front face (a direction of pulling out an operation key) in a lower portion (a base portion) of a base main body, whereby the structure is made such as to receive a load applied to the cam shaft by a case from the contact portion.

Abstract: A main handle for an electrically operated power tool and in which a grip (8) of a motor switch (10) and an actuating element serving to unlock a safety lock (16) are arranged on the main handle (6) of the electrically operated power tool (2), with the actuating element having an actuating portion (24) which is accessible from outside a tool housing (4), with the safety lock (16) blocking actuation of the motor switch (10) in its normal position with a blocking area (34) which is swivelable in a movement path of the grip (8), and being movable, upon actuation of the actuating element, into a release position in which the actuation of the motor switch (10) is unblocked, and with the actuating element being formed by a rotatably supported turning element (18) at which the blocking area (34) is formed.

Abstract: The present invention concerns a shutoff apparatus that can be controlled In either front or side mode, consisting of a minimum number of parts and resulting in a simple, economical, mechanically dependable, and compact unit. The shutoff apparatus (1) includes a rotating control element (20) in the shape a star with four branches (22), provided with a profiled extremity (25) and connected to the control rod (5) oriented toward one of the other of the two control axes (A, B) corresponding to front and lateral control modes, respectively. The present invention has a transmission element (30) connected to movable contacts (7) and equipped with inclined ramps transforming rotational movement by the control element (20) on one or the other of the two control axes (A, B) into translational movement by the movable contacts (7) between the released and engaged positions, and conversely.

Abstract: A button fastening device with circuit actuating capability includes: a first button part; a second button part engageable releasably with the first button part for fastening articles together; and a circuit actuating unit mounted on at least one of the first and second button parts, adapted to be electrically connected to a circuit, and operable to control circuit states of the circuit through engagement and disengagement of the first and second button parts.

Abstract: When an operator applies a removing force to turn a switch portion b in a direction C2, a projection a4 abuts against a slope b71 so that the removing force as a reaction is applied to the slope. The removing force is divided into a component working along the slope b71 and a component F working in a same direction as a center axis X. Thus, the removing force is converted into a force F in the same direction as the center axis X. By means of the force F in the same direction as the center axis X, a pushbutton support b6 is moved downward as accordingly moving a movable contacts b9 away from a fixed contacts b12 via a contact shaft b5.

Abstract: A device to prevent inadvertent closure of switches. The device includes a horizontal blocking member and in some embodiments an optional vertical blocking member. The device attaches to a rotary element in communication with the switch such as an operating pipe and prevents closure of the switch by striking structural components in the area of the switch as the pipe rotates. The device is of particular application with respect to high-voltage and extra high-voltage switches as typically employed in electrical transmission and distribution substations.

Abstract: An operating device of an electronic apparatus contains a rotatable operating knob protruding from a panel and stopper means for preventing the rotation of the operating knob. When the power of the electronic apparatus is turned off, the rotation of the operating knob is prevented by a stopper part of the stopper means. When the power of the electronic apparatus is turned on, the rotational operation of the operating knob is can be performed by releasing the stopper part of the stopper means. Therefore, when the power of the electronic apparatus is turned off, that is, when the adjustment of the electronic apparatus is not needed, even when a user inadvertently touches the operating knob, the operating knob does not rotate. Thus, a previously set value is prevented from being inadvertently changed.

Abstract: The main power service panel is provided with a special sliding gate on the face plate which can be selectively positioned to control the manual throw of adjacent circuit breaker handles for main and auxiliary power inputs fed thereto. The control is such that only one of the two circuit breakers can be conditioned for power transmittal at any one time. Accordingly, primary and auxiliary power supplies can be readily wired to associated main and auxiliary circuit breakers of the main power panel so that distribution circuit breakers of the panel can be energized in the event of failure of one of the power supplies, assuring a supply of power to the discrete distribution circuits. This selected supply to either breaker is accomplished with assurance there will be no back feed of electrical energy to the alternative supply.

Abstract: The invention relates to a modular disconnect switch (10) for use in an electrical enclosure cabinet (26) having a plurality of different operating mechanisms that can be assembled with the switch. These include, but are not limited to: a dial-type ratcheting rotary switch with a door-sensitive actuating mechanism (40), a dual rotary switch (30) that meets certain standards and provides a butterfly handle inside the cabinet, a lock accessory (60) for enabling the lockout of the switch in the off position, a motion translator device (50) for interfacing to a side-mounted cabinet door handle, a network connectivity module (70), and a module for adding at least one switch pole to the basic disconnect switch (10).

Abstract: A switch and switch box masking cover is adapted for frictional mounting to the switch box when pressed into switch box in one orientation, and for frictional mounting to a toggle type of switch that is already mounted in the switch box, when the cover is pressed onto the switch in an alternate, reversed orientation. The masking cover is formed in continuous strips wherein one or more of the covers may be disconnected from the strip for use on a switch box of any size.

Abstract: A saw switch box includes a supporting base resting on a switch platform, a switch shelter pivotally connected to the supporting base to define a sheltering cavity between the switch shelter and the supporting base for receiving a switch member, and a locking device for locking the switch shelter on the supporting base at the idle position. In which, at an operation position, the switch shelter is pivotally folded to a position that a contacting side of the switch shelter is adapted for contacting with the switch member to protectively shelter the switch member within the sheltering cavity in position while the saw machine is operating, and at the idle position, an operation side of the switch shelter is pressed to force the contacting side thereof for pivotally pressing the switch member downward to switch off the saw machine.

Abstract: The invention relates to a multipole fused switch arrangement for busbar systems having at least two fused switch units (10) which each holds a fuse link (20), with the fused switch units (10) having a mounting and contact apparatus (11) for a busbar, and having a switching apparatus for closing and interrupting the circuit of all the switched fuse units, with the fused switch arrangement comprising a combined switching and blocking apparatus (30), having a switching lever (40), an operating arrangement (60), a blocking apparatus (70) for each fused switch unit (10), and a locking apparatus (80).

Abstract: A switch interlock apparatus for use with switch panels that have pairs of functionally related switches, in which the handles for the switches are mounted in tandem and aligned with their pivot axes parallel to and spaced apart from one another, in which one of the switches must be flipped, before the other switch can be flipped. The switch interlock apparatus mechanically connects the handles of two functionally related switches so that as one switch moves from an “OFF” to an “ON” position, the interlock constrains the handle of the related paired switch to move from “ON” to “OFF” first. In a preferred embodiment, the switch interlock apparatus incorporates a monolithically formed interlock member that can be directly mounted to a switch panel without intermediate assembly steps.

Abstract: A lanyard that is of simple construction and is made from insulated components so as to eliminate any possibility of accidental electrical shock. The lanyard when in the off mode insures that the on/off switch of an overhead disconnect outlet box cannot be accidentally moved into the on position, and when in the on mode insures that the on/off switch remains in operating position, thus allowing for electrical current for energizing machinery, unless there is a power failure.

Abstract: A lanyard that is of simple construction and is made from insulated components so as to eliminate any possibility of accidental electrical shock. The lanyard when in the off mode insures that the on/off switch of an overhead disconnect outlet box cannot be accidentally moved into the on position, and when in the on mode insures that the on/off switch remains in operating position, thus allowing for electrical current for energizing machinery, unless there is a power failure.

Abstract: A safety switch of a screwdriver has a driver body. The safety switch of a screw comprises a push unit; a trigger pivotally installed on the driver body; a receiving space being formed within the trigger for receiving the push unit; a safety rod; one end of the safety rod being installed at a lower end of the driver body; and another end of the safety rod being installed below the trigger. The push unit comprises: a torsion spring and a resisting unit pivotally installed to the trigger; one end of the torsion spring resisting against the resisting unit; and a roller pivotally installed to the trigger and installed at a pushed end of a valve rod. By above structure, the screwdriver can be operated safety by controlling the actuation of the safety rod.

Abstract: A circuit breaker lock-out assembly which is engageable with a circuit breaker includes a body having a top and a bottom joined by walls. The walls define a passageway extending from the body top to the body bottom. A button having one end extending into the body passageway through the body top is movable between a lock position and an unlock position. A pair of leaf springs are fixed to the button, and extend through the passageway. A nose extends from the body bottom, and is engageable with the leaf springs. A pin extends from each of the leaf springs. Each pin is engageable with a hole formed in the circuit breaker walls adjacent the switch tongue, wherein slidable movement of the button toward at least one of the lock position and unlock position engages the leaf spring with the nose to move each pin relative to the hole.

Abstract: A switch lockout and rocker switch includes a switch cover, a rocker plate, a base, and a lockout slide. The rocker plate has opposite first and second ends, and is pivotally mounted to the cover. The rocker plate is thus pivotable about a pivot axis between oppositely tilted first and second tilted positions. The slide is selectively translatable relative to the base, being slidably mounted on the base for translation of the slide in a slide direction perpendicular to the pivot axis so as to slide relative to the rocker plate between a first lockout position and second lockout position.

Abstract: A switch interlock apparatus for use with switch panels that have pairs of functionally related switches, in which the handles for the switches are mounted in tandem and aligned with their pivot axes parallel to and spaced apart from one another, in which one of the switches must be flipped, before the other switch can be flipped. The switch interlock apparatus mechanically connects the handles of two functionally related switches so that as one switch moves from an “OFF” to an “ON” position, the interlock constrains the handle of the related paired switch to move from “ON” to “OFF” first. In a preferred embodiment, the switch interlock apparatus incorporates a monolithically formed interlock member that can be directly mounted to a switch panel without intermediate assembly steps.

Abstract: Certain exemplary embodiments provide a securement adapted to interface with a circuit breaker. A circuit breaker can comprise an actuator operable within an actuator operation zone defined by movement of the actuator between a first pole and a second pole. The securement can comprise an actuator restrainer and/or a substantially planar actuator guard coupled to said actuator restrainer. The securement can be operable between a first position and a second position. In the first position, the actuator can be manually operated between the first and second pole. In the second position, the substantially planar actuator guard can be located outside the actuator operation zone and/or substantially prevent manual access to the actuator.