At the heart of any relay is its contact material, which dictates its performance, especially in terms of conductivity, durability, and resistance to wear. Silver, being an excellent conductor of electricity, is often used in relay contacts. However, pure silver, although efficient, is prone to corrosion and wear when exposed to frequent electrical arcs or high temperatures. To address this, silver is alloyed with other metals such as copper, tin, or nickel to form silver alloy contacts. These alloys offer the benefits of silver’s conductivity while improving resistance to oxidation and enhancing the longevity of the relay.