Siemens 6ES7405-0DA02-0AA0 S7-400 PS405 DC Power Supply 5V/4A

Core Performance & Industrial Application

The Siemens 6ES7405-0DA02-0AA0 (PS 405, 4A) is the DC version of the SIMATIC S7-400 power supply family, designed to power the S7-400 central and expansion racks. It accepts a wide-range DC input of 24/48/60 V and supplies a regulated 5 V DC output at 4 A to the backplane bus for CPUs, I/O, CP and IM modules. The module integrates power-on monitoring, DC-OK and fault indicator LEDs, and continuous self-diagnostics, and plugs into a dedicated slot on the S7-400 rack; it carries CE and RoHS compliance and supports UL-rated industrial cabinet installation.

Technical Specifications

▶ Product type: SIMATIC S7-400 power supply PS 405 4A, order no. 6ES7405-0DA02-0AA0 

▶ Rated input: DC 24 / 48 / 60 V 

▶ Output: DC 5 V / 4 A to the rack backplane bus 

▶ Mounting: plug-in slot on S7-400 central/expansion rack (UR) 

▶ Indicators: DC-OK and fault/status LEDs with self-diagnostics 

▶ Operating temperature: 0 °C to +60 °C (cabinet enclosure) 

▶ Protection rating: IP20 (enclosed cabinet) 

▶ Dimensions: 301mm233mm41mm (WHD) 

▶ Net weight: approx. 0.94 kg 

▶ Country of origin: Germany 

▶ Compliance: CE, RoHS; UL-rated industrial application 

▶ Commodity code: 85044095

Industry Applications

Used in large PLC control cabinets for manufacturing lines, chemical & petrochemical, power and water treatment, pulp & paper, metallurgy, machine tools and packaging equipment, where it provides stable 5 V DC bus power to S7-400 control systems running continuous process and discrete automation.

Note: Listed as PM300 Active Product (currently in production); confirm the exact packaging suffix and lead time before ordering