Product Overview
Siemens 6ES7461-0AA00-7AA0 is the terminating connector specified for the SIMATIC S7-400 IM 461-0 receiver interface module. In a central-to-expansion-rack connection, the bus line must be terminated at the last expansion unit by inserting the correct terminator into the lower front connector of the receive interface. This accessory supports the local S7-400 expansion arrangement using IM 460-0 and IM 461-0, where the verified maximum total connection length is 5 m. Selection should verify the complete article number, receiver interface type, position of the final expansion rack and the existing S7-400 connection topology before installation or replacement.
Commercial Status
| Product Condition |
Original new |
| Availability |
In stock |
| Official Life Cycle |
PM300: Active Product; product phase-out since 2025-10-01 |
| Warranty |
With 1 year warranty |
Condition, availability and warranty are Stockoems commercial terms and are not manufacturer commitments.
Verified Technical Data
| Manufacturer |
Siemens |
| Complete Part Number |
6ES7461-0AA00-7AA0 |
| Product Type |
Terminating connector |
| Automation System |
SIMATIC S7-400 |
| Product Family |
IM 461-0 |
| Compatible Receiver Interface |
IM 461-0 |
| Function |
Bus termination at the last expansion unit |
| Installation Position |
Lower front connector of the receive IM in the final expansion unit |
| Associated Send Interface |
IM 460-0 |
| Maximum Total Connection Length |
5 m for the IM 460-0 / IM 461-0 local connection |
| Net Weight |
0.082 kg |
| Packaging Dimensions |
7.30 × 11.80 × 3.30 cm |
| Official Country of Origin |
Germany |
Product Photo Evidence
Model Identity
Check that the label clearly shows 6ES7461-0AA00-7AA0 and the correct manufacturer identity.
Configuration Evidence
Confirm channel count, voltage and connection format match the requested configuration.
Housing and Terminals
Inspect the housing, connector area and terminals for completeness and condition.
System Fit and Applications
- Termination of the last expansion unit in an S7-400 rack line
- Maintenance of IM 460-0 and IM 461-0 expansion connections
- Replacement of missing or damaged S7-400 bus terminators
- Commissioning checks for centralized S7-400 expansion racks
Compatibility and Procurement Checks
| Check Point |
What to Verify |
| Receiver Interface |
The installed receive module is IM 461-0. |
| Rack Position |
The connector is required at the last expansion unit of the line. |
| Connection Topology |
The system uses the compatible IM 460-0 / IM 461-0 local connection. |
| Article Identity |
The label and package show the complete suffix 6ES7461-0AA00-7AA0. |
Lifecycle Note
Siemens lists 6ES7461-0AA00-7AA0 as PM300: Active Product and states that product phase-out has applied since 2025-10-01.
Frequently Asked Questions
What is 6ES7461-0AA00-7AA0 used for?
It terminates the S7-400 bus at the final expansion unit fitted with an IM 461-0 receiver interface.
Where is the terminating connector installed?
Siemens specifies the lower front connector of the receive IM in the last expansion unit of the line.
Which receiver interface is compatible?
The exact terminating connector is specified for the IM 461-0 receiver interface.
Is 6ES7461-0AA00-7AA0 discontinued?
Siemens currently lists it as PM300: Active Product and states that product phase-out has applied since 2025-10-01.
What should be checked before ordering?
Confirm the full article number, IM 461-0 receiver type, final rack position and S7-400 expansion topology.
Request Availability and Compatibility Review
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
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