Relays & Relay Bases

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A relay is an electrical device used to turn an electrical circuit on or off using a low-power signal or control voltage. It acts as a switch that can be controlled by an external electrical signal, allowing electrical circuits to be controlled remotely or by automated systems. 
A relay consists of a coil, a contact set, and a contact control mechanism. When current passes through the coil, it creates a magnetic field that attracts or repels the contacts, turning them on or off. Relay bases are used to hold and connect relays to a circuit. 
They usually have connectors that accept relay contacts and provide a safe and reliable connection.

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