Electrical contacts are components that allow electricity to flow between two conductive parts. They are commonly found in switches, relays, and circuit breakers, where they open or close electrical circuits. When the contacts touch, they create a path for current to flow, enabling devices to operate. The materials used for electrical contacts are typically metals like copper or silver, chosen for their excellent conductivity and resistance to corrosion. Over time, contacts can wear out due to arcing or mechanical stress, which can affect their performance. Regular maintenance or replacement is essential to ensure reliable operation in electrical systems.