The Siemens 6ES7505-0RB00-0AB0 is the PS 60W HF (High Feature) system power supply for the SIMATIC S7-1500 platform. Beyond delivering 60 W to the backplane bus, its defining capability is data retention on power loss — it stores enough reserve energy to save CPU work memory contents to retentive storage upon power failure, preventing data loss in critical automation processes.

Key Features

• High Feature (HF) data retention: buffers energy during power loss to save CPU work memory to retentive storage (requires CPU firmware V2.1.0+)
• Wide 24/48/60 V DC input range — adapts to common industrial DC bus voltages
• Delivers 60 W to the S7-1500 backplane bus for CPU, communication, and I/O module electronics
• 105 mm wide housing — the added width accommodates the energy storage for data retention
• 20 ms mains buffering for standard power interruptions
• Galvanic isolation between primary and secondary sides
• Configurable from STEP 7 TIA Portal V14 SP1+ and STEP 7 V5.5 SP3+
• SELV-compliant output for enhanced safety

Technical Data

Applications

The PS 60W HF is purpose-built for S7-1500 automation processes where data integrity during power interruptions is critical — recipe-driven batch processes, pharmaceutical production, semiconductor manufacturing, and any application where losing CPU work memory data would cause product loss or extended restart procedures. For standard applications without the data retention requirement, the 6ES7505-0RA00 provides the same 60 W output in a narrower 70 mm housing.