Relay assembly refers to a complete unit or module that combines relays and associated circuitry, including control circuits, terminal connections, and protective elements, to facilitate automatic control in various electrical systems. Relays, which are electrically operated switches, are central components in such assemblies, enabling low-voltage control signals to operate higher-voltage circuits. This allows for automation and efficient control across a wide range of applications, from industrial machinery to automotive systems and household appliances.
What is a Relay? A relay is an electromechanical or solid-state switch that allows the control of a circuit by a separate, lower-power signal. The relay typically consists of an electromagnet, a set of contacts, and an armature. When the electromagnet is energized, it causes the armature to move, which either opens or closes the contacts, thereby switching the circuit. The use of relays in an assembly ensures that high-voltage or high-current circuits can be controlled safely by low-power signals, providing both protection and efficiency. Components of Relay Assembly Relays: The primary component of the assembly, relays are available in different forms, such as electromechanical relays (EMRs), solid-state relays (SSRs), or hybrid relays. Each type serves specific functions and is chosen based on the requirements of the application, including the voltage and current handling capacity, switching speed, and environmental conditions.
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