Siemens 6ES7 307-1KA00-0AA0 Power Supply Module

The Siemens 6ES7-307-1KA00-0AA0 Power Supply Module, also known as PS 307, is a dedicated 24 V DC supply for SIMATIC S7-300 automation systems. It accepts 120/230 V AC input and provides a regulated 24 V DC output rated up to 10 A, delivering up to 240 W of power to the backplane and connected peripherals. This module powers the S7-300 CPU, I/O modules, and other 24 VDC devices in industrial panels, helping ensure stable operation in demanding factory environments. The 6ES7-307-1KA00-0AA0 designation identifies the model with the 120/230 V AC input variant and 24 V DC, 10 A output, making it a common choice in spare parts catalogs and maintenance inventories for legacy Siemens automation installations. As part of the PS 307 family, it is a compact backplane power supply designed specifically for SIMATIC S7-300 panels and widely referenced in Siemens and partner catalogs for replacement and upgrade scenarios.