Siemens 6ES7461-0AA00-0AA0 Power Supply Module — Legacy Replacement. Siemens 6ES7461-0AA00-0AA0 is the exact manufacturer order number for a power supply module in the SIMATIC S7-400 portfolio. Siemens describes this exact reference as: SIMATIC S7-400, IM461-0 RECEIVER INTERFACE MODULE, FOR CENTRALIZED CONNECTION W/O PS TRANSMISSION, WITH K BUS. The verified manufacturer lifecycle record is PM500:Discontinued Product or end of PLM & Support.