An actuating apparatus having a signal transmitter and a mechanical operating element, wherein the mechanical operating element includes a first position that is stable over time and a second position that is stable over time, wherein the mechanical operating element, in the case of a movement from the first position that is stable over time into the second position that is stable over time, actuates the signal transmitter, and wherein the signal transmitter, upon actuation, causes a first signal change followed by a second signal change of an output signal, and an evaluation circuit detects an actuation of the mechanical operating element based on the first signal change and the second signal change.

A switching device includes a shell delimiting a plurality of spaces each able to accommodate a trip including a tripping device, a switching device, and a control mechanism including a device for grasping that can be moved between a first position and a second position by an operator in order to control movement of the switching device between an open position and a closed position. The switching device is in the closed position when the device for grasping is in the first position and in the open position when the device for grasping is in the second position. The control mechanism includes a single resetting device that resets each trip when the operator moves the device for grasping from the first position into the second position.

A switching device includes a shell delimiting a plurality of spaces each able to accommodate a trip including a tripping device, a switching device, and a control mechanism including a device for grasping that can be moved between a first position and a second position by an operator in order to control movement of the switching device between an open position and a closed position. The switching device is in the closed position when the device for grasping is in the first position and in the open position when the device for grasping is in the second position. The control mechanism includes a single resetting device that resets each trip when the operator moves the device for grasping from the first position into the second position.

A transmission device includes a housing, and a plurality of plug-in assemblies mounted in the housing, wherein each of the plug-in assembly that executes signal transmission and includes a board, heat generating parts mounted over the board and a fan that cools the heat generating parts.

A switching mechanism includes an actuator rotatable between an off position and an on position; and a timing disc assembly that includes an actuator disc, a bias disc, and a switch disc arranged in a stack. The actuator disc is rotatably connected to the actuator. The bias disc is connected to at least one biasing mechanism. The switch disc is connected to a switch. The actuator disc is configured to engage the bias disc such that the actuator disc is configured to rotate the bias disc to an overcenter position of the at least one biasing mechanism. The overcenter position of the at least one biasing mechanism is configured to rotate the bias disc such that engagement between the bias disc and the switch disc is configured to rotate the switch disc between a closed position and an open position of the switch.

A switching mechanism includes an actuator rotatable between an off position and an on position; and a timing disc assembly that includes an actuator disc, a bias disc, and a switch disc arranged in a stack. The actuator disc is rotatably connected to the actuator. The bias disc is connected to at least one biasing mechanism. The switch disc is connected to a switch. The actuator disc is configured to engage the bias disc such that the actuator disc is configured to rotate the bias disc to an overcenter position of the at least one biasing mechanism. The overcenter position of the at least one biasing mechanism is configured to rotate the bias disc such that engagement between the bias disc and the switch disc is configured to rotate the switch disc between a closed position and an open position of the switch.

An operating mechanism of a circuit breaker comprising a static contact, a movable contact provided on a contact support and an operating handle that is in linkage with the contact support; a rotation shaft of the movable contact is concentric with a rotation shaft of the contact support, and the movable contact and the contact support are fixedly connected via an elastic component; the movable contact is capable of rotating relative to the contact support. The operating mechanism improves the response velocity of the movable contact.

An operating mechanism of a circuit breaker comprising a static contact, a movable contact provided on a contact support and an operating handle that is in linkage with the contact support; a rotation shaft of the movable contact is concentric with a rotation shaft of the contact support, and the movable contact and the contact support are fixedly connected via an elastic component; the movable contact is capable of rotating relative to the contact support. The operating mechanism improves the response velocity of the movable contact.

The present application contemplates a switching device comprising: an outer casing defining an internal volume of the switching device; one or more electric poles, each electric pole comprising one or more mobile contacts and one or more contacts adapted to be coupled or uncoupled during a switching operation of the switching device; a contact shaft accommodated in the internal volume of the switching device and adapted to rotate about a rotation axis during a switching operation of the switching device, the contact shaft having a body comprising one or more contact seats to accommodate at least partially the mobile contacts, so that the mobile contacts rotate with the contact shaft about the rotation axis during a switching operation of the switching device; a control mechanism comprising a supporting frame fixed to the outer casing to provide support to movable members of the control mechanism and one or more connecting rods to provide a force to move the contact shaft during a switching operation of the switching device.

The present application contemplates a switching device comprising: an outer casing defining an internal volume of the switching device; one or more electric poles, each electric pole comprising one or more mobile contacts and one or more contacts adapted to be coupled or uncoupled during a switching operation of the switching device; a contact shaft accommodated in the internal volume of the switching device and adapted to rotate about a rotation axis during a switching operation of the switching device, the contact shaft having a body comprising one or more contact seats to accommodate at least partially the mobile contacts, so that the mobile contacts rotate with the contact shaft about the rotation axis during a switching operation of the switching device; a control mechanism comprising a supporting frame fixed to the outer casing to provide support to movable members of the control mechanism and one or more connecting rods to provide a force to move the contact shaft during a switching operation of the switching device.