Abstract: Disclosed herein is a circuit breaker having a closing resistor, which is capable of preventing impact caused when the circuit breaker is opened and closed from being transferred to peripheral structures. The circuit breaker having a closing resistor includes a fixed part having a fixed contact, a movable part having a movable contact, a closing resistor unit connected to the fixed part and having a closing resistor unit contact, a closing resistor movable part connected to the movable part and having a closing resistor movable contact, and a support structure slidably coupled to the closing resistor unit in a direction parallel to a movement direction of the closing resistor movable part, thereby enabling impact and vibration applied to the closing resistor unit to be absorbed by the support structure.

Abstract: The present disclosure provides techniques or an electrical wiring device with symmetric and robust actuation. An electrical wiring device includes a toggle assembly comprising a compression spring and a spring cup disposed at one end of the compression spring. The spring cup includes a lower portion and an upper portion. The lower portion includes an outer diameter at most as large at the inner diameter of the compression spring and is disposed within the end of the compression spring. The upper portion has a recess therein and is configured to receive a spring seat of a toggle, and allows the spring seat to rotate within the recess when the toggle is actuated.

Abstract: A contact switch includes a case, a first contact provided in the case, a second contact provided in the case, an actuator for causing the first contact to contact the second contact, and an oil-repellent agent applied to at least one of an outer edge of the first contact or an outer edge of the second contact The oil-repellent agent includes a fluorine-based polymer. The switch has a simple structure and connects between the contacts reliably.

Abstract: Angled spring contacts and switches made with contactors containing angled spring contacts are disclosed. The housing for the angled spring contacts has a generally cylindrical shape. The contacts are contained within the housing with their ends extending from the housing on either side. The contacts are formed by making bullet-shaped internal contacts that are joined by a spring. The spring is mounted to the two contacts to urge the two contacts away from each other at an angle to a longitudinal axis of the housing. This angle forces contact between each contact and the housing in at least two places, thus creating redundant paths between the contacts. Switches, such as plunger switches having a normal or OFF position, and an actuated or ON position, may be made with one or more angled spring contacts. The contacts have separate surfaces for electrical conduction and for arcing.

Abstract: A pressure switch for pressures up to a maximum permissible pressure (pmax), with a housing (1) and a membrane (2), whereby the membrane is fastened in the housing. The membrane has an exposed face on which a pressure can act, and it is deformed when a pressure acts upon it. The pressure switch comprises a means (4) that converts the membrane deformation into a stroke, as well as an electric contact system that interacts with this means. The means causes a membrane deformation to actuate the electric contact system. The pressure switch also comprises a cast solid abutment member (5) that completely fills a cavity between an inner wall of the housing and the face of the membrane opposite the exposed face when the membrane is exposed to the maximum permissible pressure pmax.

Abstract: According to the switch of the present invention, a lubricant containing a base oil, a soft resin polymer, and a surface active agent is applied between a fixed tab and a contact strip that undergo sliding operation in response to vertical movement of an operating part. The soft resin polymer of the composition works effective in minimizing wear of the contacting surfaces of the fixed tab and the contact strip. At the same time, including the surface active agent in the composition can prevents the lubricant from flowing to an undesired section. The lubricant with the composition above can provide a switch with a reliable switch-on/off operation.

Abstract: A molded case circuit breaker movable contact arm or carrier electrically connects with the circuit breaker trip unit or load terminal without requiring a flexible electrical conducting braid. The contact carrier is pivotally arranged within a contact carrier support to which the trip unit or load terminal lug is attached. The contact carrier pivot pin is supported on a pair of parallel posts extending from the contact carrier and a spring clip is positioned around the parallel posts and the pivoting end of the contact carrier to promote good electric transport without interfering with the rotational movement of the contact carrier.