Disclosed herein is a magnetic trip device. The magnetic trip device maintains a failure state indication through a latch, a lever, and a trip bar which are provided in the magnetic trip device and thus a switching part can be operated or maintained with a more simplified structure.

The present application provides a residual-current protection device and a tripper. The residual-current protection device comprises: a flux transformer receiving a residual-current signal; a tripping output element outputting ON/OFF signals; an energy storage mechanism adapted to switch between an energy storage state and an energy release state, the energy storage mechanism having a locking unit that locks the energy storage mechanism in the energy storage state; and a transmission mechanism braked by the flux transformer, which drives the tripping output element to move and drives state of the energy storage mechanism to switch; the transmission mechanism comprising: a first rack cooperating with the locking unit, a second rack driving the tripping output element, and a reduction gear with a big gear engaged with the first rack and a small gear engaged with the second rack. By means of the gear rack transmission mechanism of the residual-current protection device, reduction transmission can be effected, driving force needed by energy storage may be reduced, and thus design requirements as high transmission efficiency, easy processing and assembly as well as low costs can be satisfied.

An accessory wire retention assembly is for an electrical switching apparatus, such as a circuit breaker. The circuit breaker comprises a housing, separable contacts and an accessory enclosed by the housing, an operating mechanism for opening and closing the separable contacts, and a number of wires adapted to be electrically connected to the accessory. The wires extend from the interior of the housing through an aperture to the exterior. The accessory wire retention assembly includes an insert which cooperates with the housing and to establish a predetermined position of the wires with respect to the accessory and the aperture, and a fastening mechanism which fastens the wires to the insert to maintain the wires in the predetermined position.

A release mechanism for surge protectors includes a first electrical connection pin soldered with a varistor's second electrode, a function rotating member sheathed on a fixed column and installed between a varistor and a bridge bracket, an elastic driving device fixed into an internal box body, and a bridge bracket fixed to a second electrical connection pin in the internal box body (2). If the varistor is not released, then the bridge bracket will be passed through a soldering window and soldered with a varistor's first electrode, or else the elastic driving device will drive the function rotating member to rotate around the fixed column. An arc shield plate shields between the bridge bracket and electrode. A failure status indicating area is exposed and a remote linkage rod is triggered.

A transfer apparatus for a dual-power transfer switch and an associated dual-power transfer switch. The transfer switch includes a pair of pushing members adapted to be moved in opposite directions to control circuit breakers for the dual-power transfer switch in a mutually different manner; a transmission arm rotatably arranged between the pair of pushing members; a pair of pins arranged on radial ends of the transmission arm; and a pair of elastic reset components arranged on the pair of pushing members.

Plug-on neutral circuit breakers include a housing, a plug-on neutral clip with legs extending out from the housing and a mechanical coupler of a lockout latch assembly in the housing coupled to a latch link and the plug-on neutral clip to move the mechanical coupler in response to a change in position of the plug-on neutral clip between first and second positions associated with partially and fully installed orientations to thereby provide a lockout state when not in the second position.

A base of a surge protector, the surge protector comprising a function rotating member (3), and the function rotating member (3) having a remote linkage rod contact wall (3D) and a remote linkage notching (3H), and the base comprising a remote device, and the remote device having at least one remote linkage rod (9), and when the function rotating member (3) is situated at the first position, the remote linkage rod (9) is pressed down by the remote linkage rod contact wall (3D), and when the function rotating member (3) is rotated from the first position to the second position, the function rotating member (3) is rotated from the remote linkage rod contact wall (3D) to the remote linkage notching (3H) with respect to the point of action of the remote linkage rod (9) to release the remote linkage rod (9).

An engageable drive engageable operating mechanism for converting a movement of a linear translation operating handle to a rotating handle movement relative to the operative front face engageable with a molded-case circuit breaker. The mechanism includes an external rotating adapter external rotating operating member or alternatively an engageable drive engageable operating mechanism incorporating a handle assembly external rotating operating member, interchangeable with each other; and a gear, a support movable movement-converting support including a rack portion, and a structural support base, wherein the structural support base includes a built-in side opening chamber.

A fused disconnect switch device includes a housing defining an interior volume, and a current path. An arc interruption assembly is located in the interior volume and includes a shell, and a conductor in electrical communication with the current path. At least one arc plate is located between the magnets and the conductor. The magnets cooperate to generate a magnetic field facilitating an interruption of a first arc between the conductor and the first side of the arc chamber and a second arc between the conductor and the second side of the arc chamber.

Provided is a trip mechanism for DC molded case circuit breaker, in which the insulating distance between the poles increases without any increase in whole product size, thereby reliably providing a trigger output against an over current and a fault current instantaneous breaking required. The trip mechanism includes a trip mechanism part including an instantaneous trip mechanism, the instantaneous trip mechanism including a movable member to operate according to a fault current instantaneous breaking required, and a thermal trip mechanism including a bimetal to operate according to an over current, the trip mechanism part being provided for one of two adjacent poles; a crossbar that is rotatable by contacting and pressing of the movable member of the instantaneous trip mechanism or the bimetal of the thermal trip mechanism; and a shooter that is provided to be rotatable by contacting of the crossbar rotating.