Schneider Electric Sa

Schneider Electric Industries Sa

Patrick Roger

Patrick Comtois

Alain Fraisse

Robert Bet

DC electromagnet

An electromagnetic trip for an electrical switch apparatus for protecting against short circuits, including a magnetic yoke (20), a tubular non-magnetic coil form (40) with axis X-X', open at both ends (42, 43), a control coil (50) wound around the form (40), a fixed core (60) and a movable core (70) which are housed in the respective ends (42, 43) of the form (40), the movable core (70) having an upper end (72) projecting outside the form (40), characterized in that the form (40), the coil (50), the fixed core (60) and the movable core (70) constitute a pre-assembled electromagnetic sub-assembly (10) intended to be introduced into the magnetic yoke (20).

Electromagnetic trip for an electrical apparatus for protection

Differential thermal tripping device with bimetallic strips for electrical protection appliance such as a circuit breaker. The circuit breaker includes a tripping assembly with two contact strips 30, 40 free to move along the X direction, and for each bimetallic strip, a single adjustment part 15 fixed to a free inclined edge 19 of the bimetallic strip head 13, adjustable along the X direction, in the position obtained after heating of the bimetallic strips for calibration. The assembly 30, 40 may consist of a frame supporting adjustment parts until they are fixed and provided with separable areas 36, 46 to generate two contact strips following cutting.

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Auxonne, France

Patrick Roger