Auxiliary Relay, DC 24V, 4 contact changer Model 1MRK001602-AD

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A 4-contact relay is an electromechanical device used to control electrical circuits by opening and closing its contacts. It has four electrical contacts that can be normally open (NO) or normally closed (NC), allowing greater versatility in switching electrical signals.

The primary function of a 4-contact relay is to provide electrical isolation between a low-power control circuit and a high-power circuit. When an electrical signal is applied to the control circuit, the relay is activated, and the contacts open or close, depending on its configuration.

These relays are used in a wide variety of applications, such as industrial automation systems, motor control, safety and security circuits, and lighting control systems. Their ability to handle up to four different circuits makes them especially useful when multiple devices or functions need to be controlled in an electrical system.