power switch

mechanism used to disconnect the electrical current in case there is a transfer of the current or an overload of current

A switch is a device for changing the course (or flow) of a circuit. The prototypical model is a mechanical device (for example a railroad switch) which can be disconnected from one course and connected to another. The term "switch" typically refers to electrical power or electronic telecommunication circuits. In applications where multiple switching options are required (e.g., a telephone service), mechanical switches have long been replaced by electronic variants which can be intelligently controlled and automated.
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Switch may mean: Technology Electric switch, a device for making or breaking an electric circuit, or for selecting between multiple circuitsRailroad switch, a kind of junction between multiple railroad tracksTelephone switch, the central part of a telephone systemSwitched-mode power supply ("switchers"), rapidly switches a transistor on and off
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