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  2. Magnetic switch - Wikipedia

    en.wikipedia.org/wiki/Magnetic_switch

    Magnetic switch. Magnetic switch is an electrical switch that makes or breaks contact in the presence of a magnetic field.Applications include situations where it is not desirable or possible for moving elements to make direct contact with the switch, such as in explosive environments, submerged in liquids, and where repetitive contact with a mechanical switch would result in undesired wear.

  3. Reed switch - Wikipedia

    en.wikipedia.org/wiki/Reed_switch

    The reed switch [i] is an electromechanical switch operated by an applied magnetic field. It was invented in 1922 by professor Valentin Kovalenkov at the Petrograd Electrotechnical University, [1] and later evolved at Bell Telephone Laboratories in 1936 by Walter B. Ellwood into the reed relay.

  4. Magnetic starter - Wikipedia

    en.wikipedia.org/wiki/Magnetic_starter

    Contactor with overload relay. A magnetic starter is an electromagnetically operated switch which provides a safe method for starting an electric motor with a large load. Magnetic starters also provide under-voltage and overload protection and an automatic cutoff in the event of a power failure.

  5. Magnets are switching up the keyboard game | TechCrunch

    techcrunch.com/2024/04/07/magnets-are-switching...

    Mechanical switches are very different. They rely on magnets and springs and activate by sensing changes in the magnetic field. Popularized by Dutch keyboard startup Wooting, these switches rely ...

  6. Reed relay - Wikipedia

    en.wikipedia.org/wiki/Reed_relay

    A reed relay [i] is a type of relay that uses an electromagnet to control one or more reed switches. The contacts are of magnetic material and the electromagnet acts directly on them without requiring an armature to move them. Sealed in a long, narrow glass tube, the contacts are protected from corrosion. The glass envelope may contain multiple ...

  7. Solenoid (engineering) - Wikipedia

    en.wikipedia.org/wiki/Solenoid_(engineering)

    In electromagnetic technology, a solenoid is an actuator assembly with a sliding ferromagnetic plunger inside the coil. Without power, the plunger extends for part of its length outside the coil; applying power pulls the plunger into the coil. Electromagnets with fixed cores are not considered solenoids. In simple terms, a solenoid converts ...

  8. Logitech's new mechanical keyboard lets you swap switches ...

    www.engadget.com/2019-10-01-logitech-mechanical...

    The PRO X Mechanical Gaming Keyboard will retail at $149.99 and the PRO Mechanical Gaming Keyboard (without the swappable microswitches) will cost $129.99. Programmers, power users and gamers can ...

  9. Contactor - Wikipedia

    en.wikipedia.org/wiki/Contactor

    A contactor is an electrically controlled switch used for switching an electrical power circuit. [1] A contactor is typically controlled by a circuit which has a much lower power level than the switched circuit, such as a 24-volt coil electromagnet controlling a 230-volt motor switch. Unlike general-purpose relays, contactors are designed to be ...

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