What is 24 VDC?

24 VDC (Volts Direct Current) refers to a direct current electrical power supply or signal circuit operating at a voltage of 24 volts. It's a common voltage level used in a wide range of industrial, commercial, and hobbyist applications due to its balance of safety, efficiency, and power delivery capability. 24 VDC is frequently employed in control systems, automation equipment, sensors, actuators, lighting, and low-power electronics. Its relatively low voltage reduces the risk of electric shock compared to higher voltages, while still providing sufficient power for many applications. It is also often used as a standard voltage for programmable logic controllers (PLCs) and other control devices.