Siemens 6ES5930-7AA31 Power Supply Module 24V DC

Siemens 6ES5930-7AA31 is the PS930 power supply module for the SIMATIC S5-110A PLC, designed to mount in an S5 rack and provide the controller’s internal 5V rail from a 24V DC input. It accepts 24V DC and delivers an internal 5V supply (5.2V) with a maximum current of 0.7 A to power the S5-110A’s electronics. This specific part number is commonly listed in legacy Siemens S5 documentation and distributor catalogs as the 24V DC/5.2V, 0.7A PS930 module for the S5-110A, making it a typical replacement in older automation installations. Because it is a vintage module, it is frequently encountered as new-old-stock in supplier catalogs.