Siemens AG 6ES7 307-1KA01-0AA0 Power Supply Module

The Siemens 6ES7307-1KA01-0AA0 PS307 power supply module is a regulated 24 V DC source for SIMATIC S7-300 backplanes. It accepts a mains input of 120/230 V AC with automatic switching, enabling operation from global power networks without manual reconfiguration. The module delivers a 24 V DC output rated at 10 A to the S7-300 rack, providing the essential rail for the CPU, I/O modules, and communications boards and helping ensure stable operation under typical load conditions. This 10 A variant sits in the PS307 family and is intended for installation in the S7-300 backplane, where it serves as the primary power source for the rack. In practice, engineers select the PS307 power supply when a compact, reliable 24 V supply is required to support a mid-size S7-300 installation, with the 6ES7307-1KA01-0AA0 specifying the 24 V, 10 A configuration for this model number.