IO-Link is a globally recognized communication standard for industrial automation, developed by the IO-Link Consortium, which includes companies from Germany, the US, and other countries. It enables seamless sensor and actuator connectivity in Industry 4.0 applications. Electronic 27 V DC circuit breakers under the IO-Link umbrella are critical components used in industrial control systems, providing overcurrent protection for low-voltage circuits. These devices are commonly employed in manufacturing, automotive, and machinery sectors by brands like IFM, Pepperl+Fuchs, and Siemens. The circuit breakers ensure reliable operation of IO-Link networks while meeting strict safety standards.