A rotary operating device includes a case, a rotating shaft member, an operation member, and a sensor. The case has a cavity having an annular shape with an opening at a top. The rotating shaft member is rotatable with respect to the case. The operation member rotates together with the rotating shaft member. The sensor is disposed within the cavity to detect rotation of the rotating shaft member. The case has an inner peripheral wall. The operation member has an inner cylindrical portion. The rotating shaft member has a peripheral wall that extends downward and along an outer peripheral surface of the inner peripheral wall. A first gap between the inner peripheral wall of the case and the peripheral wall of the rotating shaft member is smaller than a second gap between an inner peripheral surface of the rotating shaft member and the inner cylindrical portion of the operation member.

A button structure of an input device, including a circuit board, a dome element, and a trigger, is provided. The dome element is disposed on the circuit board, and is electrically conductive and elastic. The trigger is disposed at a center of the dome element, and is electrically insulative and flexible. The trigger has a conductive layer facing the circuit board. The dome element is configured to be pressed to drive the conductive layer of the trigger to abut against a trigger circuit of the circuit board to generate a trigger signal.

The electromagnetic relay comprises an auxiliary fixed terminal that has a configuration different from that of a fixed terminal and includes an auxiliary external input/output terminal and an auxiliary external output/input terminal that can be electrically connected to the auxiliary external input/output terminal. The electromagnetic relay comprises an auxiliary movable terminal that has a configuration different from that of a movable terminal and can electrically connect the auxiliary external input/output terminal and the auxiliary external output/input terminal.

A switch device includes two fixed contacts and a movable contact of which position is changed when an operation unit is operated to selectively contact the fixed contacts. The switch device also includes a snap action mechanism that switches a contact state of the movable contact with the fixed contacts by deforming a spring portion in accordance with an operation amount of the operation unit. The switch device also includes a control unit that determines an operation state of the operation unit based on a detection signal received from the fixed contacts and the movable contact.

An illuminated pushbutton for a pushbutton switch having a light transmitting pushbutton and an indicia cover that is attached to a front end of the light transmitting pushbutton. The indicia cover has non-light transmitting regions and light transmitting regions on its front surface, wherein the light transmitting regions provide visible, light-transmitted indicia on the light transmitting pushbutton. The indicia cover has an adhesive on its rear surface to attach the indicia cover to the front end of the light transmitting pushbutton. An LED in the pushbutton switch is constructed to transmit light to the indicia cover. The light passes through the light transmitting regions (symbols and letters) but not through the non-light transmitting regions. As the light passes through the light transmitting symbols and letters, the symbols and letters are lighted and visible in the dark.

A radio frequency switch connector includes: a metal case; an insulator defining an inserting hole and received in the metal case; an elastic terminal retained to the insulator and having a first soldering portion; and a fixed terminal retained in the insulator and having a second soldering portion, wherein the first soldering portion and the second soldering portion are aligned with each other in a first direction so as to define an imaginary center line in the first direction, the base of the outer case is asymmetrical at two sides of the imaginary center line so as to shift a weight of the radio frequency switch connector.

A circuit board enclosure comprises a circuit breaker, platform, base, cover, and circuit board. The circuit breaker includes two conductors and a plate, which is connected to the conductors. The platform receives the circuit breaker. The base has a bottom member and an opening arranged in the bottom member. The base receives the platform with the circuit breaker such that the plate of the circuit breaker is accommodated substantially within the opening of the bottom member. The cover is configured to cover the base and form an interior space. The interior space accommodates the platform, the circuit breaker, and the circuit board. The circuit board is connected to the circuit breaker. The circuit board enclosure can be adhered to a substantially planar surface. The plate is configured such that removal of the circuit board enclosure from the substantially planar surface will damage the connection of the plate to the conductors.

The relay according to an embodiment of the disclosure includes a main body configured to open and close a circuit by an input signal, and a plurality of terminals extending from the main body and coupled to a PCB, wherein each of the plurality of terminals comprises an inclined extension portion configured to allow the main body to be spaced apart from the PCB and maintain an inclined state with respect to a surface of the PCB and a lower surface of the main body, and a coupling portion extending from the inclined extension portion in a direction to enter a coupling slot of the PCB.

Exemplary embodiments are directed to modular wiring interface boards for an actuator, the interface boards including a body, electrical terminals configured to receive a signal from a field control device, electrical contacts configured to be placed in electrical communication with a backplane electrically communicating with an actuator, switching mechanisms, and a processor. Each of the switching mechanisms is positionable in a first position and a second position. The processor reconfigures a wiring configuration of the plurality of electrical terminals to accommodate different field control devices based on the positions of the plurality of switching mechanisms. Modular wiring systems for an actuator and methods of operating an actuator are also provided.

An electrical switch (120) includes an insulative housing (121), the operation part (150) disposed in the housing (121), and the metallic cover (160) enclosing the housing (121). The metallic cover (160) includes a front plate (161), a pair of side plates (164) extending rearwardly from two opposite lateral sides of the front plate (161). The side plate (164) include a main body (165) to cover the corresponding side wall (125) of the housing and an extension (167) extending beyond a rear face of the housing (121) and adapted to be soldered upon a printed circuit board (110) on which the housing (121) is seated.