A mechanical switch (10), in particular a light switch and/or a roller shutter switch and/or thermostat switch is provided. The mechanical switch (10) has a switching contact assembly (20), in particular a monostable, bistable or tristable switching contact assembly (20), and a base carrier (40), in which the switching contact assembly (20) is received The base carrier (40) has a holding device (50) for receiving an electromechanical actuator unit (100), which is designed in such a way that an electromechanical actuator unit (100) received in the holding device (50) can be supplied with voltage for effecting a state change of the switching contact assembly (20) independently of an external mechanical action on an operating mechanism by means of the electromechanical actuator unit (100).

An overheating destructive switch, comprising: a first conductive element, a second conductive element, a movable conductive element, an overheating destructive element, an operating component, and a second elastic element. The movable conductive element connects the first conductive element and the second conductive element. A first elastic element and the second elastic element act on an operating element. The first elastic element is compressed and has a first elastic force, and the second elastic element has a second elastic force. The first elastic force is greater than the second elastic force under in a normal state. When the overheating destructive element is destroyed due to overheating, the first elastic force is reduced or lost, such that the second elastic force becomes greater than the first elastic force. The movable conductive element is consequently disconnected from the first conductive element and the second conductive element, thus achieving protection against overheating.

An overheating destructive switch, comprising: a first conductive element, a second conductive element, a movable conductive element, an overheating destructive element, an operating component, and a second elastic element. The movable conductive element connects the first conductive element and the second conductive element. A first elastic element and the second elastic element act on an operating element. The first elastic element is compressed and has a first elastic force, and the second elastic element has a second elastic force. The first elastic force is greater than the second elastic force under in a normal state. When the overheating destructive element is destroyed due to overheating, the first elastic force is reduced or lost, such that the second elastic force becomes greater than the first elastic force. The movable conductive element is consequently disconnected from the first conductive element and the second conductive element, thus achieving protection against overheating.

A device includes a transmission assembly having a first override clutch. The first override clutch is used especially for transmitting a torque between a first coupling partner and a second coupling partner. The first override clutch engages and disengages in accordance with a change in the load flow between the coupling partners. A freewheeling member which is associated with the first override clutch neutralizes the engagement between the coupling partners. The neutralization is, in particular, temporary.

A device includes a transmission assembly having a first override clutch. The first override clutch is used especially for transmitting a torque between a first coupling partner and a second coupling partner. The first override clutch engages and disengages in accordance with a change in the load flow between the coupling partners. A freewheeling member which is associated with the first override clutch neutralizes the engagement between the coupling partners. The neutralization is, in particular, temporary.

A switching device for low or medium voltage electric power distribution network, the switching device including one or more electric poles, each electric pole including: an insulating housing extending along a longitudinal axis and fixed to a main support structure of the switching device; a first pole terminal and a second pole terminal electrically connectable with a corresponding phase conductor of an electric power source and with a corresponding load conductor of an electric load, respectively; a movable contact and a fixed contact, which are electrically coupleable or decoupleable one with or from another upon a movement of the movable contact towards or away from the fixed contact, the fixed contact being electrically connected with the first pole terminal, the movable contact being electrically connectable with the second pole terminal; a movable circuit assembly including a plurality of semiconductor devices adapted to switch in a conduction state or in an interdiction state depending on the voltage applied thereto, the semiconductor devices being electrically connected in series one to another in such a way that a current can flow according to a predefined conduction direction when the semiconductor devices are in a conduction state, the movable circuit assembly including first and second assembly terminals for the plurality of semiconductor devices. The movable circuit assembly is operatively coupled with the movable contact and moves together with the movable contact during a movement of the movable contact towards or away from the fixed contact, the semiconductor devices switching in a conduction on state or in an interdiction state depending on the position of the movable contact.

A switching device for low or medium voltage electric power distribution network, the switching device including one or more electric poles, each electric pole including: an insulating housing extending along a longitudinal axis and fixed to a main support structure of the switching device; a first pole terminal and a second pole terminal electrically connectable with a corresponding phase conductor of an electric power source and with a corresponding load conductor of an electric load, respectively; a movable contact and a fixed contact, which are electrically coupleable or decoupleable one with or from another upon a movement of the movable contact towards or away from the fixed contact, the fixed contact being electrically connected with the first pole terminal, the movable contact being electrically connectable with the second pole terminal; a movable circuit assembly including a plurality of semiconductor devices adapted to switch in a conduction state or in an interdiction state depending on the voltage applied thereto, the semiconductor devices being electrically connected in series one to another in such a way that a current can flow according to a predefined conduction direction when the semiconductor devices are in a conduction state, the movable circuit assembly including first and second assembly terminals for the plurality of semiconductor devices. The movable circuit assembly is operatively coupled with the movable contact and moves together with the movable contact during a movement of the movable contact towards or away from the fixed contact, the semiconductor devices switching in a conduction on state or in an interdiction state depending on the position of the movable contact.

An electrical disconnect switch including an over-rotation protective feature to protect the load switch from damage is disclosed. The electrical disconnect switch may include an enclosure, a load switch, and a handle assembly coupled to the load switch. The disconnect switch may include a detent between the handle assembly and the load switch so that during excessive rotation or torqueing the handle assembly is permitted to decouple or break-away from the load switch to prevent excessive stress from being transferred to the load switch and thus prevent any damage to the load switch.

An overheating destructive switch, comprising: a first conductive element, a second conductive element, a movable conductive element, an overheating destructive element, an operating component, and a second elastic element. The movable conductive element connects the first conductive element and the second conductive element. A first elastic element and the second elastic element act on an operating element. The first elastic element is compressed and has a first elastic force, and the second elastic element has a second elastic force. The first elastic force is greater than the second elastic force under in a normal state. When the overheating destructive element is destroyed due to overheating, the first elastic force is reduced or lost, such that the second elastic force becomes greater than the first elastic force. The movable conductive element is consequently disconnected from the first conductive element and the second conductive element, thus achieving protection against overheating.

An overheating destructive switch, comprising: a first conductive element, a second conductive element, a movable conductive element, an overheating destructive element, an operating component, and a second elastic element. The movable conductive element connects the first conductive element and the second conductive element. A first elastic element and the second elastic element act on an operating element. The first elastic element is compressed and has a first elastic force, and the second elastic element has a second elastic force. The first elastic force is greater than the second elastic force under in a normal state. When the overheating destructive element is destroyed due to overheating, the first elastic force is reduced or lost, such that the second elastic force becomes greater than the first elastic force. The movable conductive element is consequently disconnected from the first conductive element and the second conductive element, thus achieving protection against overheating.