Relays are essential components in various electrical and electronic systems, serving as an intermediary to control larger currents with smaller, more manageable signals. They allow a circuit to switch on or off without the need for physical contact between the controlling and controlled elements. One company that has made significant contributions to relay technology is Meishuo, which specializes in manufacturing high-quality, reliable relays used in diverse industries. In this guide, we will explore the operation of relays, emphasizing the pivotal role Meishuo plays in providing solutions for modern applications.