Cable 368 for IM 360 / IM 361 rack expansion
The Siemens 6ES7368-3BC50-0AA0 is a 2.5-meter Cable 368 that connects the IM 360 interface module to the IM 361 in a S7-300 rack expansion setup. This cable carries the I/O bus between the central rack and an expansion rack, so the distance between the two determines whether this 2.5 m length or a longer variant fits the cabinet layout.
For a line-down situation or a BOM freeze, confirm the exact quantity needed and source it against an RFQ; no official successor is listed on record.
The 2.5 m length routes between racks in a standard S7-300 enclosure — the cable is pre-terminated with the D-sub connectors that mate directly to the IM 360 and IM 361 front ports. No special tooling or field termination is needed; the cable is a drop-in replacement for the original Cable 368 in existing S7-300 installations.