Relay connectors are primarily used in applications where electrical circuits need to be controlled by a low voltage signal, while carrying the power required for larger devices or systems. A relay connector ensures that signals from a low-power circuit can control a high-power circuit, which is especially important in systems like automotive controls, industrial machinery, and home appliances. By facilitating this control, relay connectors provide safety, reliability, and efficiency.

    For example, in automotive systems, relay connectors are used to control various functions such as lights, fans, or even the ignition system. When a driver presses a button or flips a switch, the relay connector carries the electrical current to the intended device, thus enabling smooth operation. In industrial machinery, relay connectors are used to control motors, pumps, and other essential equipment that require high voltage.