Relay voltage plays a crucial role in the operation and functionality of relays, which are essential components in various electrical applications. A relay acts as an electrically operated switch, allowing a low-power signal to control a larger load without the need for a direct connection. Understanding relay voltage not only aids in selecting appropriate relays for specific tasks but also ensures the reliability and efficiency of electrical systems.

What is Relay Voltage? Relay voltage refers to the voltage required to activate the relay coil, enabling the relay to function effectively. Depending on the specific design and application, relay voltage can be categorized into two primary types： direct current (DC) and alternating current (AC). Each type serves different purposes and has unique characteristics. Direct Current (DC) Relay Voltage： DC relays are commonly employed in applications where stable voltage sources are available, such as batteries or DC power supplies. Typical relay voltages in this category are 5V, 12V, and 24V, with the choice depending on the requirements of the circuit being controlled.