The first step in relay assembly is the selection of high-quality components. The primary components of a relay include the relay coil, contacts, armature, and magnetic core. The coil is typically made of copper wire and needs to be wound precisely to ensure consistent electrical characteristics. The contacts, which are responsible for switching the electrical circuit, are usually made from materials such as silver or alloys to provide durability and minimize wear. The armature and magnetic core work together to activate the switching mechanism when the coil is energized. Choosing the right materials and components for each part is crucial for the relay’s performance, longevity, and reliability.