Abstract: A switching device for industrial equipment having at least one pair of contacts includes a transfer member rotatably mounted in the switching device. The transfer member is configured to receive a first force applied to the switching device in a first direction and to receive a second force applied to the switching device in a second direction. A rocker arm, rotatably mounted in the switching device, engages the transfer member to receive the first force over a first angle of rotation and to receive the second force over a second angle of rotation. The second angle of rotation is less than the first angle of rotation. A lever arm is pivotally mounted within the switching device. The lever arm engages the rocker arm to move between an Off position and an On position, and a plunger is actuated by the lever arm to selectively open and close the contacts.

Abstract: A split calibration knob can include a lower knob with a lower-knob attachment interface and an upper knob with an upper-knob attachment interface configured to be engaged with the lower-knob attachment interface. One of the lower-knob attachment interface and the upper-knob attachment interface can include a tube with a first press-fit feature and a first positioning feature positioned on the tube. The other of the lower-knob attachment interface and the upper-knob attachment interface can include a hub having an outward facing surface, a second press-fit feature configured to be engaged with the first press-fit feature to secure the upper knob to the lower knob, and a second positioning feature configured to be engaged with the first positioning feature to fix an orientation of the upper knob relative to the lower knob, thereby linking rotation of the lower knob to the rotation of the upper knob.

Abstract: A switch device includes a lock component and a crossbar. The crossbar is configured to open or close electric contacts. The crossbar includes a lock receiving section for receiving the lock component after the switch device is turned to an ON position for a period of time. The lock component is disengaged from the lock receiving section after the period of time to allow the crossbar jump upwards to close the electric contacts quickly.

Abstract: A split calibration knob can include a lower knob with a lower-knob attachment interface and an upper knob with an upper-knob attachment interface configured to be engaged with the lower-knob attachment interface. One of the lower-knob attachment interface and the upper-knob attachment interface can include a tube with a first press-fit feature and a first positioning feature positioned on the tube. The other of the lower-knob attachment interface and the upper-knob attachment interface can include a hub having an outward facing surface, a second press-fit feature configured to be engaged with the first press-fit feature to secure the upper knob to the lower knob, and a second positioning feature configured to be engaged with the first positioning feature to fix an orientation of the upper knob relative to the lower knob, thereby linking rotation of the lower knob to the rotation of the upper knob.

Abstract: A circuit interrupting device is provided. In some configurations, the circuit interrupting device includes a base and an arc chamber assembly received within the base. The arc chamber assembly includes an arc chamber framework and a plurality of splitter plates received within the arc chamber framework. The arc chamber framework includes a first plurality of protrusions and a second plurality of protrusions that laterally extend in a direction toward one another. Adjacent pairs of the first plurality of protrusions and the second plurality of protrusions are arranged on opposing sides of each of the plurality of splitter plates.

Abstract: The present invention relates to a filter circuit for eliminating capacitive inrush current occurring in electromagnetic coil control circuits controlling the actuator coil of electromagnetic contactors or relays. The filter circuit comprises input terminals to be connected with a direct current voltage, a first output terminal to be connected with a first terminal of the inductive load and a second output terminal to be connected to a second terminal of the inductive load, a first diode, wherein the cathode of the first diode is connected to said first output terminal and to said first input terminal, a second diode, wherein the anode of the second diode is connected to said second output terminal, and a filter capacitor which is connected between said second input terminal and to a node which interconnects the anode of said first diode and the cathode of said second diode.

Abstract: The present disclosure describes an apparatus and method for quenching the arc developed during the interruption of a current carrying path by use of an arc quenching apparatus with a contiguous chamber that shapes and directs the gas pressure and other associated arc components through a set of splitter plates located at the ends of the chamber. The contiguous chamber contains the gas pressure and other associated arc components for the duration of the quenching process.

Abstract: The present disclosure describes an apparatus for increasing the initial closing force and reducing the final closing force in the actuating mechanism of electromechanical switching devices such as relays or contactors.

Abstract: The subject matter disclosed herein describes an optical sensor used in a safety system. The sensor includes two pixel matrices on a single substrate. Each of the pixel matrices are arranged in a row and column format, and pixels from one matrix are interspersed with pixels from the other matrix such that alternating pixels in each row and column belong to separate matrices. Two sets of selection logic allow each matrix to be enabled separately. Additional monitoring logic is included to detect shorted pixels and/or shorted selection lines. In addition, the frames generated by each pixel array may be compared to detect variation in performance between arrays.

Abstract: The present disclosure describes an apparatus and method for quenching the arc developed during the interruption of a current carrying path by use of an arc quenching apparatus with a contiguous chamber that shapes and directs the gas pressure and other associated arc components through a set of splitter plates located at the ends of the chamber. The contiguous chamber contains the gas pressure and other associated arc components for the duration of the quenching process.

Abstract: The present disclosure describes an apparatus for increasing the initial closing force and reducing the final closing force in the actuating mechanism of electromechanical switching devices such as relays or contactors.

Abstract: A contact bus bar assembly for supplying power to a load, and further pertains to a switching device which can be connected to such a compact bus bar assembly, and to a power distribution system. The bus bar assembly includes at least two electrically conductive tracks which are at least partly covered by an electrically insulating cover. An outer surface of said insulating cover is provided with a plurality of ribs arranged in a region connecting pin terminals. The switching device may additionally comprise a separating element provided with a plurality of second ribs.