Key Features and Technical Specifications
Built for performance, the 6ES7461-0AA01-0AA0 offers precise electrical characteristics. It draws a maximum input current of 290 mA from the 5 V DC backplane bus, ensuring efficient power usage. With a maximum power loss of 1,450 mW, it maintains thermal stability even under continuous operation. The module supports a maximum cable length of 5 meters between the first and last interface module, providing flexibility in system layout.
- Input current from backplane bus: 5 V DC, max. 290 mA
- Power loss: max. 1,450 mW
- Max. cable length: 5 m between interface modules
- Termination plug: 6ES7461-0AA0-7AA1
Applications and Use Cases
It is commonly used in manufacturing plants, process control, and material handling systems. The module ensures reliable data transfer between racks, which is critical for synchronized operations. Its compact design fits into standard S7-400 racks, saving valuable cabinet space.

Installation and Setup
Installing the 6ES7461-0AA01-0AA0 is straightforward. Mount it in the designated slot of your S7-400 rack, then connect the termination plug (6ES7461-0AA0-7AA1) to ensure proper signal termination. Verify that the cable length between interface modules does not exceed 5 meters to maintain signal integrity. Always follow the Siemens installation manual for detailed steps.
Maintenance and Reliability
To ensure long-term reliability, inspect the module periodically for dust accumulation and secure connections. Check the termination plug for proper seating. The module's low power loss (1,450 mW) reduces heat stress, extending its service life. Regular verification of the backplane bus voltage (5 V DC) helps prevent unexpected failures.

Compatibility and Integration
The 6ES7461-0AA01-0AA0 is designed for the SIMATIC S7-400 family, ensuring seamless integration with other S7-400 modules. It supports central coupling without PS transfer, making it suitable for systems where power supply transfer is not required. The C-bus support enables efficient communication between racks.
Troubleshooting and Common Issues
If communication errors occur, first verify the termination plug is correctly installed. Check the cable length; exceeding 5 meters can cause signal degradation. Ensure the backplane bus voltage is stable at 5 V DC. If the module overheats, confirm that the power loss is within the specified 1,450 mW limit. For persistent issues, consult the Siemens support documentation.
Product Support and Availability
The 6ES7461-0AA01-0AA0 is available from AutoDCSTech. Contact our team for availability and delivery options.
Availability & Condition at AutoDCSTech
| Part Number | 6ES7461-0AA01-0AA0 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
