Relays are essential components in electrical circuits that allow low-power control signals to switch higher-power loads. The relay electrical diagram is a critical tool for understanding how a relay operates and how it can be integrated into an electrical system. In this article, we will explore the basic principles of a relay electrical diagram, its components, and its various applications in real-world scenarios.

What is a Relay? A relay is an electromechanical switch that uses an electromagnet to control the switching of circuits. It typically consists of a coil, contacts, and a magnetic armature. When electrical current passes through the coil, it generates a magnetic field that either opens or closes the relay’s contacts. This allows the relay to control a separate, usually higher-power circuit using a low-power control signal. Components of a Relay Electrical Diagram A typical relay electrical diagram includes several key components, each with a specific function in the overall operation of the relay：