Abstract: 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.

Abstract: Damping device to impose a reaction to the displacement of a manual operating device (28), said device comprising at least one chamber containing the magneto-rheological fluid, one or two means of generating a variable magnetic field (6.1, 6.2) in the magneto-rheological fluid so as to modify its apparent viscosity, one element (4) free to move in translation capable of shearing the magneto-rheological fluid and designed to be mechanically connected to the manual operating device (28), said mobile element (4) comprising a blade with a longitudinal axis (Y) comprising holes and/or recesses and/or projections.

Abstract: A fast engage, slow release electrical actuator combines an electromagnetic actuator with a thermal actuator, the latter which retains the electromagnetic actuator after the former has been actuated to delay the release thereof.

Abstract: A liquid level controller comprises of a control circuit, a control box, a sump pump, and a liquid level indicating means, the liquid level indicating means comprising a high level indicating device and an impulse indicating device, the high level indicating device and the impulse indicating device comprising pipe bodies, magnetic switches, floating element or impulse element. The pipe body of the impulse indicating device has a connecting pipe connected to the side thereof. The magnetic switches located on the top of the pipe bodies and connected to the control circuit with electric wires. When the liquid surface raises and buoys the floating element of the high level indicating device to contact the magnetic switch, the magnetic switch produces a signal to the control circuit and the sump pump is started to draw the liquid out of the tank.

Abstract: Device for the automatic reclosing of breakers, taking the form of an assembly (1) comprising a movable element (3) capable, as a result of a trip of the breaker, of being moved in order to actuate the setting member of the breaker so as to reclose it.It is defined in that the said movable element (3) is composed of a piston (4) which is mounted inside a stationary housing or enclosure (2) and the movements of which are obtained as a result of the variations in volume of an expandable body contained inside the said enclosure (2), these variations being caused by the heat released by an electrical resistor (8) when it is made live.

Abstract: A plugging defeat system for use with a reversible electric motor having a motor shaft. A slipping clutch-type mechanism is used to sense the speed and direction of the motor and to selectively open forward or reverse enabling switches when the motor reaches a predetermined speed. If operating in the forward direction, the clutch mechanism will open the reverse enabling switch, once the predetermined speed is reached, preventing motor reversal until the speed has fallen to a safe level, and vice versa.