Product Overview
The Siemens 6ES7461-0AA01-0AA0 is a SIMATIC S7-400 interface module receiver (IM 461-0) designed for central coupling without PS transfer, featuring C-bus connectivity. This receiver module ensures seamless communication within the S7-400 rack architecture, making it an essential component for medium to large-scale automation systems. With its compact 25 mm width and low power dissipation, the 6ES7461-0AA01-0AA0 offers both space and energy efficiency, contributing to reduced operational costs over its service life.
Technical Specifications
All specifications are directly from the manufacturer's database for the Siemens 6ES7461-0AA01-0AA0. The module's key parameters include:
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Input current from backplane bus (5 V DC): max. 290 mA
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Power loss: max. 1,450 mW
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Cable length between first and last interface module: max. 5 m
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Connection method: termination plug 6ES7461-0AA0-7AA1
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Dimensions: Width 25 mm, Height 290 mm, Depth 280 mm
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Weight: approx. 610 g
These specifications underline the module's suitability for centralized coupling applications where low power consumption and compact footprint are critical. The maximum power loss of 1,450 mW (1.45 W) minimizes heat generation, while the 5-meter cable reach offers flexibility in rack configuration.
Installation & Setup Guidance
Mount the Siemens 6ES7461-0AA01-0AA0 on the S7-400 rack using the provided termination plug (part number 6ES7461-0AA0-7AA1). Ensure that the backplane bus voltage is stable at 5 V DC and that the total current draw from the bus does not exceed 290 mA per module. For central coupling configurations, position the receiver module at either end of the rack chain, and observe the maximum cable length of 5 meters between the first and last interface module to maintain signal integrity. No additional configuration software is required for basic operation; the module automatically communicates via the C-bus.
Maintenance & Reliability
The 6ES7461-0AA01-0AA0 is designed for long-term reliability in industrial environments. To maximize service life, keep the module free from dust and moisture, and ensure adequate airflow around the rack. Regular inspection of the termination plug contacts and backplane connectors every 12 months helps prevent intermittent faults. Given its low power loss (1.45 W), the module generates minimal heat, reducing thermal stress on adjacent components. This low thermal profile directly supports a cost-benefit angle by lowering cooling requirements and extending overall system uptime.
Selection Guide & Purchasing Advice
Before ordering the Siemens 6ES7461-0AA01-0AA0, verify compatibility with your S7-400 rack version and confirm that a compatible termination plug (6ES7461-0AA0-7AA1) is included or separately available. The module is intended for receiver functions in central coupling setups; ensure your system uses a matching transmitter module (IM 460-0) for full functionality. For genuine, tested automation spares, rely on PLC Source PRO (available at ubest101.myshopify.com) to source the exact 6ES7461-0AA01-0AA0 with documented specifications and reliable delivery.