3results about "Switches with electrothermal release" patented technology

The invention relates to a circuit-breaker comprising: - an unlocking lever (100) electrically isolated from the current to be interrupted, this unlocking lever being movable between: - an upright position in which a lock is in abutment against one of its ends, in order to keep the circuit-breaker in a non-circuit-breaking state, and - a retracted position in which the lock is no longer in abutment against this end, which allows the circuit-breaker to move into a circuit-breaking state, - a current loop through which the current to be interrupted flows, and - a magnetic target (162) facing the current loop, this magnetic target exerting a force on the unlocking lever, which force mechanically urges the unlocking lever towards its retracted position, this magnetic target (162) being attached, without any degree of freedom, to the unlocking lever.

In one example, a reset switch assembly is provided. The reset switch assembly may include a reset button assembly, a slider, a leaf switch, and a trip coil assembly. The slider may have a at least a first slider position and a second slider position. In the first slider position, the trip coil assembly may engage the slider to the reset button assembly. The leaf switch may be biased to a closed position. In in the second slider position, the slider may maintain the leaf switch in an open position. In another example, a circuit interrupter including the reset switch assembly is provided.

A compensation bimetal having at least two bends configured to reverse the direction of the compensation bimetal to form “S” curves is disclosed. The first end of the compensation bimetal is coupled with a differential lever while the second end is coupled with a tripping pin, and the length of the multi-metallic strip is greater than the distance between the differential lever and the tripping pin. The compensation bimetal may be bimetallic, trimetallic strip, or tetra-metallic. The compensation bimetal with the described configuration compensates for a greater range of ambient temperature fluctuations while preserving sensitivity to thermal tripping due to over-current conditions.