S7-400 PS 405 20 A power supply
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Siemens 6ES7405-0RA01-0AA0 is a PS 405 20 A power supply for the SIMATIC S7-400 automation system. It supplies the rack and system modules from a DC source with rated input voltages of 24/48/60 V DC.
According to Siemens documentation, the permissible input range is 19.2-72 V DC. On the secondary side the power supply provides 5.1 V DC / 20 A and 24 V DC / 1 A. This high-current version is intended for larger S7-400 configurations.
Detailed technical documentation is available from Siemens Industry Online Support. Other PS 405 power supplies in our catalog include 6ES7405-0KA01-0AA0, 6ES7405-0KA02-0AA0 and 6ES7405-0DA01-0AA0.
When replacing a power supply in an existing S7-400 rack, check the full part number, input voltage and required current capacity. Send us the number of the existing module if you need help comparing variants.
