When a Momentum Drop Point Stalls the Line
A controls engineer is commissioning a Modicon Momentum I/O base when the RS485 multi-master link will not terminate cleanly. The processor is fine, the wiring is fine, but the connection accessory is missing. That single small part holds up the whole panel. The Schneider Electric 170XTS04200 shunt plug exists for exactly this moment: a compact connection accessory that keeps Momentum and Quantum architectures talking.
What the 170XTS04200 Actually Is
This is a shunt plug from Schneider Electric, built for the Modicon Momentum automation platform and also rated for Modicon Quantum compatibility. It carries the RS485 multi-master RJ45 shunt plug designation and falls under connection accessories. Each order ships as a set of two, so you have a spare on the shelf before the next commissioning window. It is CE compliant, lightweight at just 8.0 grams, and small enough to tuck into any panel layout.
Key Parameters at a Glance
| Parameter | Value |
|---|---|
| Product line | Modicon Momentum |
| Range compatibility | Modicon Quantum, Modicon Momentum |
| Accessory type | Shunt plug (connection accessory) |
| Designation | RS485 Multi-master RJ45 shunt plug |
| Quantity per set | Set of 2 |
| Height | 0.79 in |
| Width | 4.92 in |
| Length | 7.48 in |
| Weight | 8.0 g |
| Standard compliance | CE |
| Cooling | Natural |
| Ambient temperature range | 0 degrees Celsius to 60 degrees Celsius |
| Operating humidity | 95% non-condensing |
| Storage humidity | 95% non-condensing |
| Max altitude | 1000 m above sea level |
Where It Fits in Real Installations
Momentum and Quantum platforms often sit in process skids, remote I/O cabinets, and packaged equipment rooms where panel space is tight and uptime matters. The 170XTS04200 supports RS485 multi-master connectivity, which is common in distributed control layouts where several nodes share a single bus segment. In oil and gas skids, that means fewer home runs back to the main cabinet. In factory automation cells, it means cleaner cable routing and easier service access. The natural cooling design and 95% non-condensing humidity tolerance suit enclosures that are not climate-controlled but stay within the stated ambient window.
Installation and Integration Notes
Mounting is straightforward: the plug seats into the Momentum or Quantum connection point and completes the RS485 multi-master path. Because this is a bus accessory, verify segment length, termination, and node count against your network design before energizing. If you are tying the segment into a larger fieldbus, you may need an external gateway or connection module; confirm cables and gateways with your supplier before ordering. Keep the second unit from the set as a ready spare — it costs little and saves a trip.
Keeping the Link Reliable
Inspect the plug and its mating contacts during scheduled panel maintenance. Look for loose seating, corrosion, or debris around the RJ45 interface, especially in humid or dusty rooms. Because the part relies on natural cooling, keep surrounding airflow unobstructed and confirm ambient temperature stays within the stated range. Altitude should remain at or below 1000 m above sea level. A small, inexpensive accessory like this protects far more expensive processors and I/O bases from avoidable downtime.
Before You Order
Confirm your platform (Momentum or Quantum), your bus type, and the number of sets you need. The 170XTS04200 ships as a set of two with a GTIN of 3595860027108 and country of origin France. Please verify current lifecycle status and availability with Oil AutoTech before ordering. Contact Oil AutoTech today for pricing and availability.
