A current sensing assembly includes a conductor having a first side, a second side opposite the first side, a third side, and a fourth side opposite the third side. The first side has a first notch formed therein and the second side has a second notch formed therein opposite the first notch. The current sensing assembly also includes a sensor assembly including a first magnetic sensor disposed in the first notch or proximate to the third side of the conductor between the first and second notches, and a second magnetic sensor disposed in the second notch or proximate to the fourth side of the conductor between the first and second notches.

A circuit breaker having a mechanical switch which is inserted into a main current path and has a fixed contact and a moving contact which is connected to a contact bridge mounted movably thereto. The circuit breaker has a drive unit which is operatively connected to the contact bridge, and which comprises a first drive unit and a second drive unit. The first drive unit is energized by means of a control circuit, and the second drive unit is inserted into the main current path. Further, the invention relates to a motor vehicle.

A circuit breaker having a mechanical switch which is inserted into a main current path and has a fixed contact and a moving contact which is connected to a contact bridge mounted movably thereto. The circuit breaker comprises a drive, which is operatively connected to the contact bridge, and a control unit, via which the drive is energized and which is powered from a control circuit. The drive has a “moving magnet actuator.”Further, a vehicle having the circuit breaker is provided.

A circuit breaker having a mechanical switch introduced into a main current path, which comprises a fixed contact and a moving contact connected to a movably mounted contact bridge. The circuit breaker comprises a drive, which is in active connection with the contact bridge, and which comprises a first drive unit and a second drive unit. The first drive unit is energized via a control circuit, and the second drive unit is connected in parallel to a resistor element introduced into the main current path. The invention also relates to a motor vehicle.

A circuit breaker includes a set of separable contacts moveable between a closed position and an open position, an operating mechanism configured to open the set of contacts, a conductor coupled to the set of contacts, a current transformer coupled to the conductor, and a trip circuit coupled to the operating mechanism and to the current transformer and configured to cause the operating mechanism to open the set of contacts when a current through the conductor exceeds a current threshold that is greater than a saturation threshold of the current transformer. The trip circuit is further configured to vary the current threshold during an interval following a closure of the set of the contacts and to provide a fixed current threshold thereafter.

A circuit breaker having, in a current path, a switching device having a thermal and/or magnetic tripping device for interruption of a current circuit having the current path comprehensive in an event of overcurrent or short-circuit, wherein a functional component of the switching device connected into the current path is bridged by means of a bypass which carries the load current detected by means of a current sensor when the current is below a current threshold, and is shut off when the current threshold is exceeded.

The application relates to a power switch for breaking an electrical circuit when current and/or current time span threshold values are exceeded, including an energy converter, which on the primary side is connected to the electrical circuit, and on the secondary side provides an energy supply for at least one control unit of the power switch. A choke is connected between the secondary-side output of the energy converter and the control unit of the power switch.

The present invention relates to a trip device for a molded case circuit breaker and, more specifically, to an electronic trip device for a molded case circuit breaker. The electronic trip device for a molded case circuit breaker, according to one embodiment of the present invention, comprises: a trip part case having a plurality of phases; a trip part terminal provided at the rear surface part of the trip part case and provided for each phase; and a voltage sensing conductor coupled between the rear surface part and the trip part terminal and provided for each phase, wherein the voltage sensing conductor provided for each phase is formed to have the same shape and the same size.

There is a need to monitor and control the state of relays and circuit breakers within power distribution systems. The monitoring of a relay state, i.e. open or closed, is often performed by applying a monitoring signal to sensing contacts added to the relay. Manufactures of such systems have chosen many different voltages for their own. monitoring systems making it difficult to interconnect dissimilar monitoring systems. A signal conditioning circuit is provided that can cope with a large input voltage range and can be configured to allow may items of equipment(which may be new item or legacy items) to be connected to a controller.

In a circuit breaker arrangement, this disclosure describes a method and circuit design enables a current transformer to be used to detect ground faults in circuit breakers (such as a main-tie-main circuit breakers) that have been designed to receive signals from Rogowski coils.