Siemens 6ES7 307-1KA02-0AA0 Power Supply Module

Siemens 6ES7307-1KA02-0AA0 PS307 is a regulated power supply module designed for the SIMATIC S7-300 automation system, delivering 24 V DC at up to 10 A to feed the CPU and I/O modules housed in a single S7-300 rack. It accepts an automatic 120/230 V AC input at 50/60 Hz, with nominal input currents of 1.9 A at 230 V and 4.2 A at 120 V, and it specifies an inrush current of 55 A (at 25°C) and an I2t rating of 3.3 A2s to characterize startup behavior. The unit measures 80 × 125 × 120 millimeters and weighs approximately 800 g, offering a compact footprint suitable for panel-mounted automation cabinets while providing a stable 24 V DC output to PLC CPU, I/O, and peripheral devices within the S7-300 ecosystem. This model, 6ES7307-1KA02-0AA0, represents the PS307 power supply variant for S7-300 systems, enabling a dedicated 24 V DC rail for Siemens PLCs and their associated modules.