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Mercury Switches


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Mercury Switches

Mercury switches are electrical switches that use the element mercury to make and break electrical circuits. These switches are typically used in applications where a reliable, long-lasting, and low-maintenance switch is required. Mercury switches are often used in thermostats, automotive applications, and other industrial settings. The basic design of a mercury switch consists of a glass tube that is partially filled with mercury. The tube contains two or more contacts that are positioned at different levels within the tube. When the switch is tilted or rotated, the mercury flows within the tube and makes contact with the contacts, completing the electrical circuit. When the switch is returned to its original position, the mercury flows back to its original position, breaking the circuit. Mercury switches are known for their durability and long life. They are also known for their ability to operate in harsh environments, such as high temperatures and corrosive atmospheres. However, mercury switches are also known for their environmental impact. Mercury is a toxic substance that can pose a risk to human health and the environment if it is not handled properly. Despite their environmental concerns, mercury switches are still used in some applications where their unique properties are required. However, many jurisdictions have implemented regulations that restrict or ban the use of mercury switches in certain applications.

electrical circuits, thermostats, automotive, industrial settings, environmental impact

Jeffrey Johnson


Mercury Switches Definition
Mercury Switches on Design+Encyclopedia

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