Siemens 6ES7405-0KA00-0AA0 Power Supply Module — Legacy Replacement. Siemens 6ES7405-0KA00-0AA0 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, PS 405 POWER SUPPLY, 10A, 24V DC, 5V/10A DC. The verified manufacturer lifecycle record is PM500:Discontinued Product or end of PLM & Support.