Kwikschakelaars

Kwikschakelaars, also known as mercury switches, are electrical switches that use mercury as a conductor. They consist of a glass bulb containing a small amount of mercury and two or more electrical contacts. When the bulb is tilted, the mercury flows to bridge the contacts, completing an electrical circuit. When tilted in the opposite direction, the mercury separates from the contacts, opening the circuit. These switches were widely used in various applications due to their reliability and ability to operate in harsh environments. Common uses included thermostats, level sensors, and tilt sensors in appliances, automotive systems, and industrial equipment. The sealed nature of the glass bulb protected the mercury from oxidation and contamination, contributing to their longevity. However, the toxicity of mercury has led to a significant decline in their use. Many countries have implemented regulations restricting or banning the use of mercury-containing devices. Modern alternatives, such as solid-state switches, Hall effect sensors, and tilt switches without mercury, have largely replaced kwikschakelaars in most applications to mitigate environmental and health risks. The disposal of old kwikschakelaars requires special handling due to mercury's hazardous nature.