
6ES7505-0RB00-0AB0 SIMATIC S7-1500 System Power Supply
This unit provides essential backplane bus voltage for the S7-1500 series. It features buffer functionality to retain CPU RAM data during power interruptions.
Quick Facts
- Part number
- 6ES7505-0RB00-0AB0
- Brand
- Siemens
- Category
- PLC CPUs & Controllers
- Product type
- System power supplies
- Lifecycle
- Active Product
- Dimensions
- 15.9 x 15.6 x 11.8 cm
- Net weight
- 1.088 Kg
- Source category
- System power supplies
Product Overview
The 6ES7505-0RB00-0AB0 is a high-frequency system power supply designed for the SIMATIC S7-1500 automation platform. It delivers stable operating voltage to the backplane bus while supporting critical data retention tasks. Review Siemens 6ES7505-0RB00-0AB0 as System power supplies with source category System power supplies, recorded lifecycle Active Product, and submitted model identity.
Engineered for robust industrial environments, this component ensures continuous operation through its integrated buffer capability. The design prioritizes reliability for maintaining CPU memory integrity during transient power events.
Technical Review Notes
- Input voltage range supports 24V, 48V, and 60V DC configurations for flexible integration. Keep dimensions 15.9 x 15.6 x 11.8 cm and net weight 1.088 Kg unchanged while comparing project documents and product image evidence.
- Output power rating is specified at 60W to meet standard S7-1500 controller demands.
- Buffer functionality allows the CPU to retain RAM data retentively during power loss.
- High-frequency design minimizes electromagnetic interference within dense control cabinet installations.
- Backplane bus supply ensures consistent voltage distribution across connected S7-1500 modules.
- Compact form factor fits standard DIN rail mounting requirements for space efficiency.
Model Identification
- Brand designation confirms this unit originates from the Siemens industrial automation portfolio. Use the source path Automation technology / S7-1500 / Power supplies / System power supplies to confirm catalog context, model family, parameter review scope, and technical inquiry preparation notes.
- Part number 6ES7505-0RB00-0AB0 uniquely identifies this specific system power supply variant.
- Lifecycle status indicates the product remains active for current project specifications.
- Category classification places this item within the broader S7-1500 power supply family.
Technical Parameters
| Product type | System power supplies |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 15.9 x 15.6 x 11.8 cm |
| Net weight | 1.088 Kg |
| Source category | System power supplies |
Parameters are factual source fields retained for model review.
Parameter Review
- Physical dimensions are recorded as 15.9 cm width by 15.6 cm height by 11.8 cm depth. Check product-owned images, label text, connector area, and submitted model references against the exact 6ES7505-0RB00-0AB0 record before publication.
- Net weight is listed at 1.088 kg, aiding in structural load calculations.
- Voltage input options include 24V, 48V, and 60V DC for diverse power sources.
- Power output capacity is fixed at 60W for standard S7-1500 backplane requirements.
- Buffer type is integrated to support non-volatile memory retention during outages.
Catalog Classification
Image & Label Review
- Visual inspection should confirm the presence of standard Siemens labeling on the housing. Review Siemens 6ES7505-0RB00-0AB0 as System power supplies with source category System power supplies, recorded lifecycle Active Product, and submitted model identity.
- Check terminal blocks for secure connection points matching the specified voltage inputs.
- Verify the buffer capacitor area for any signs of physical damage or leakage.
- Ensure the backplane connector pins are intact and free from corrosion or debris.
Product Image Gallery

Inquiry Preparation
- Document the required input voltage level to ensure proper configuration for your site. Keep dimensions 15.9 x 15.6 x 11.8 cm and net weight 1.088 Kg unchanged while comparing project documents and product image evidence.
- Specify the total backplane load to verify the 60W output meets system needs.
- Confirm the need for data retention buffering based on your process criticality.
- Provide installation constraints to ensure the 15.9x15.6x11.8 cm footprint fits your panel.
Category Context
This unit belongs to the S7-1500 series within the Siemens automation technology range.
It falls under the system power supplies category for central controller voltage distribution.
Related components include CPU modules and I/O stations requiring stable backplane voltage.
Review Notes
- Source parameter review should validate the 24/48/60V DC input flexibility.
- Project document review must confirm the 60W power requirement alignment.
- Technical specification check should verify the buffer functionality for data safety.
- Physical dimension audit ensures application context with existing DIN rail mounting structures.



