The temperature sensitive pellet type thermal fuse includes a cylindrical case which has a first end and a second end, a temperature sensitive pellet, an insulating tube, a first lead which is inserted into the insulating tube and has an inner end serving as a contact portion, a movable contact which is electrically connected to the cylindrical case, a weak compression spring, a strong compression spring, and a second lead which is disposed on the second end of the cylindrical case. The movable contact includes a projecting contact portion which is provided at a central part of the movable contact, and the projecting contact portion and the contact portion of the first lead are in contact with each other inside the insulating tube.

Circuit breakers having a cover that includes a medial segment with an aperture for a switch handle. The medial segment merges into a line side segment having at least one channel overlying a lug compartment. The at least one channel has an inner end portion overlying a lug access path to the lug compartment. The circuit breakers also include at least one gas-blocking member coupled to the at least one channel.

The temperature sensitive pellet type thermal fuse includes a cylindrical case which has a first end and a second end, a temperature sensitive pellet, an insulating tube, a first lead which is inserted into the insulating tube and has an inner end serving as a contact portion, a movable contact which is electrically connected to the cylindrical case, a weak compression spring, a strong compression spring, and a second lead which is disposed on the second end of the cylindrical case. The movable contact includes a projecting contact portion which is provided at a central part of the movable contact, and the projecting contact portion and the contact portion of the first lead are in contact with each other inside the insulating tube.

A switching device includes an arc extinguishing chamber, an orifice for outflow of the gases from the arc extinguishing chamber, and a multilayer wire cloth or fabric having at least a first wire layer and a second wire layer. The first wire layer and the second wire layer have a respective cloth or fabric structure including respective warp yarns and weft yams. The first and second wire layers are disposed in a stacked configuration in the orifice such that a weaving direction of the warp yams of the first wire layer is rotated by an angle in relation to a weaving direction of the warp yarns of the second wire layer, and a weaving direction of the weft yarns of the first wire layer is rotated by an angle in relation to a weaving direction of the weft yarns of the second wire layer.

An unit has a plurality of arc quenching plates and an electrically isolative housing, the plurality of arc quenching plates adjacent to each other are spaced to form an arc channel. Each one of the plurality of arc quenching plates has a mounting portion and a receiving portion, the receiving portion has a distributing part, the distributing part has a through hole penetrating through the receiving portion and an inclined plane protruding from the receiving portion, the inclined plane is arranged to a side of the through hole away from an arc entrance and extending to the arc entrance, an angle between the inclined plane and the receiving portion is an acute angle, a root of the inclined plane is continuous with the receiving portion. An inclined plane of a first arc quenching plate is interlacing and opposite with an inclined plane of a second arc quenching plate.

The invention relates to an arc quenching plate for quenching arcs. The arc quenching plate comprises a mounting portion suitable for mounting and a receiving portion suitable for receiving arcs, the receiving portion comprises a distributing part suitable for separating arcs, the distributing part comprises a through hole penetrating through the receiving portion and an inclined plane protruding from the receiving portion, the inclined plane is arranged to a side of the through hole away from an arc entrance and extending to the arc entrance, an angle between the inclined plane and the receiving portion is an acute angle, a root of the inclined plane is continuous with the receiving portion. The arc quenching plate and the arc quenching unit of the present invention have following benefit, in the same space, an arc can be separated into much more pieces of short arc.

A guide member is for an electrical switching apparatus. The electrical switching apparatus includes a primary cover, a secondary cover structured to move between a closed position and an open position, a first printed circuit board, a second printed circuit board spaced from the first printed circuit board, and a cable member electrically connecting the first and second printed circuit boards. The guide member includes a body having a base coupled to the primary cover, a ramp engaging the cable member when the secondary cover is in the closed position, the ramp having first and second opposing end portions, the first end portion extending from the base, and a number of guide portions each extending from the ramp and engaging the cable member when the secondary cover moves between the closed position and the open position in order to minimize twisting and folding of the cable member.

A non-electrical device (40) includes first and second half-housings which are produced in a plastic material, are joined fixedly to one another, define an axis along which a passage for an electrical conductor passes through the first and second half-housings, and delimit between them an internal volume, which is separated from the passage and which surrounds the passage all around the axis. The first half-housing incorporates, by moulding, mechanical reinforcing elements which extend substantially parallel to the axis in the internal volume until they are in contact with the second half-housing.

A guide member is for an electrical switching apparatus. The electrical switching apparatus includes a primary cover, a secondary cover structured to move between a closed position and an open position, a first printed circuit board, a second printed circuit board spaced from the first printed circuit board, and a cable member electrically connecting the first and second printed circuit boards. The guide member includes a body having a base coupled to the primary cover, a ramp engaging the cable member when the secondary cover is in the closed position, the ramp having first and second opposing end portions, the first end portion extending from the base, and a number of guide portions each extending from the ramp and engaging the cable member when the secondary cover moves between the closed position and the open position in order to minimize twisting and folding of the cable member.

Provided is a circuit breaker with a single pole breaking unit including a housing, a movable contact provided in the housing, a fixed contact provided in the housing and contacting or separated from the movable contact, and an extinction unit provided in the housing and configured to extinguish an arc generated when the movable contact and the fixed contact are separated. At least one arc gas discharge passage is formed in the housing to allow an arc gas generated when the movable contact and the fixed contact are separated to be discharged.