24V DC Regulated Power Supply: Applications & Selection Guide (2026)

Why 24V Is Common

24V DC regulated power supplies are widely used in industrial control systems, sensors, actuators, and automation applications. The 24V standard is common in industrial automation, PLC systems, and control circuits requiring higher voltage than 12V systems.

Industrial Control Systems

24V supplies power industrial control systems, PLCs, sensors, and actuators. Industrial control applications require stable 24V output for reliable system operation.

Automation Applications

Automation systems use 24V for control circuits, sensors, and actuators. Stable 24V output ensures reliable automation system operation.

Types of 24V DC Regulated Power Supplies

24V power supplies are available in different topologies, each suited to specific application requirements.

Linear 24V Supplies

Linear 24V supplies provide low ripple and simple design. Linear supplies offer low noise suitable for sensitive industrial control applications.

Switching 24V Supplies

Switching 24V supplies provide high efficiency and compact size. Switching topology enables efficient 24V power delivery for industrial applications.

How to Choose

Selecting a 24V DC regulated power supply requires evaluation of technical specifications and application requirements.

Ripple

Evaluate ripple requirements based on application sensitivity. Industrial control applications may require ripple below 10mV for reliable operation.

Current Capacity

Determine current capacity requirements for industrial control system power consumption. Select supplies with adequate current capacity.

Safety Protections

Ensure comprehensive protection features including overvoltage protection (OVP), overcurrent protection (OCP), and overtemperature protection (OTP).

Comparison With Other Voltage Levels

Understanding how 24V compares to other voltage levels helps in selecting appropriate supplies.

24V vs 12V

12V supplies serve automotive and standard embedded applications. 24V supplies provide higher voltage for industrial control systems. For lower voltage requirements, consider 12V DC power supplies.

24V vs 48V

48V supplies serve telecommunications and higher-voltage industrial applications. 24V supplies serve standard industrial control applications. For higher voltage requirements, consider 48V DC power supplies.

24V vs 300V

300V supplies serve high-voltage testing applications. 24V supplies serve standard industrial control applications. For high-voltage requirements, consider 300V DC power supplies.

Related Resources

For more information, see:

• DC Regulated Power Supply Basics - Fundamental principles
• DC Regulated Power Supply FAQ - Common questions
• 12V DC Regulated Power Supplies - Lower voltage alternatives
• 48V DC Regulated Power Supplies - Higher voltage alternatives