Which contact material is known for having the highest melting point?

Tungsten is recognized for having the highest melting point among the contact materials listed. It has a melting point of approximately 3422 degrees Celsius (6192 degrees Fahrenheit), which makes it an ideal choice for applications involving high temperatures and demanding operational conditions. This quality is particularly beneficial in electrical contacts that may experience significant heat due to high currents.

The high melting point of tungsten contributes to its durability and performance stability, reducing the risk of contact welding or failure under extreme conditions. This characteristic is essential in ensuring the reliability and longevity of electrical components, especially in heavy-duty equipment and industrial applications where efficiency and safety are paramount.

In contrast, gold, silver, and copper have lower melting points, which may limit their effectiveness in high-temperature situations. Gold melts at around 1064 degrees Celsius, silver at approximately 961 degrees Celsius, and copper at about 1085 degrees Celsius, making them less suitable for applications where maintaining integrity under extreme thermal stress is crucial.