At its core, a relay is an electrically operated switch used in various applications to control electrical circuits. Relays are pivotal in industries such as automotive, telecommunications, industrial automation, and home appliances, where they manage large currents or voltages with a low-power signal. The basic relay consists of an electromagnet that moves a switch mechanism when energized, either opening or closing the circuit.

    With the rise of smart technologies and automation, the need for relays that can handle more complex tasks while maintaining compactness and reliability has become increasingly important. The production of relays has, therefore, seen constant innovation to meet these evolving demands.