Tech & Buying Guide

Reliable electrical distribution is the cornerstone of every successful industrial automation project. Engineers must understand the various voltage levels required by Programmable Logic Controllers (PLCs) to ensure safe and efficient wiring. This guide examines the standard power requirements for CPUs, I/O modules, and field devices within a modern control system architecture.

In industrial automation, selecting the right control voltage is vital for performance and safety. Among all options, 24V DC has become the global standard for PLC and DCS systems due to its safety, stability, and compatibility, offering reliable operation across modern automation environments.