Bimetallic Rivets Silver Copper Contacts For Electrical Switches

Silver-copper contacts are made by fusing or cladding a layer of silver onto a copper base material, creating a composite structure that combines the beneficial properties of both metals. Silver is an excellent conductor of electricity, having one of the highest conductivities among all metals. By incorporating a layer of silver onto a copper base, the overall electrical conductivity of the contact is significantly improved. Silver-copper contacts are commonly used in various types of electrical switches, including relays, contactors, circuit breakers, and other switching devices. Silver-copper contacts are less prone to oxidation compared to pure copper contacts, reducing the risk of contact resistance buildup over time. Silver has good wear resistance, and by using it as the contact material, the switch can endure numerous switching cycles without significant wear or degradation. While pure silver contacts have superior electrical conductivity, they can be costly due to the high price of silver. By using a silver-copper composite, the benefits of silver's conductivity are achieved at a more reasonable cost.