When Loose Field Wiring Stalls a Commissioning Window
A panel builder was commissioning a Modicon Momentum line when field-device terminations started eating hours. Individual wire runs to discrete and analog I/O bases meant slow, error-prone connections. The fix was a single part: the 170XTS00301 terminal connector kit from Schneider Electric.
What the 170XTS00301 Actually Does
This is a connection accessory for the Modicon Momentum automation platform. It is designated a busbar with 3 rows, built to provide a common connection for field devices and to serve as a protective distribution connector. It lands on discrete I/O bases and analog I/O bases, so one kit covers both sides of a typical Momentum assembly.
Terminations are spring type, which speeds up field wiring and reduces rework during startup. The kit measures 1.42 inches high, 2.24 inches wide, and 5.05 inches long, and weighs 110 grams. That compact footprint keeps panel depth and DIN-rail space under control.
Key Parameters at a Glance
| Specification | Value |
|---|---|
| Product line | Modicon Momentum |
| Accessory type | Busbar, 3 rows |
| Terminal style | Spring type |
| Destination | Discrete I/O base, analog I/O base |
| Height | 1.42 inches |
| Width | 2.24 inches |
| Length | 5.05 inches |
| Weight | 110 grams |
| Standard compliance | CE |
Where It Earns Its Place
Discrete I/O panels. A 3-row busbar gives you a shared field-device connection point across a discrete I/O base, cutting point-to-point wiring on crowded terminal strips.
Analog I/O cabinets. The same kit serves analog I/O bases, so mixed Momentum racks do not need two different connection accessories.
Retrofit and upgrade work. When you replace a Momentum I/O base, reusing a proper busbar connection keeps the changeover quick and the wiring tidy.
Environmental and Installation Notes
The 170XTS00301 operates from 0 to 60 degrees Celsius ambient, with maximum operating humidity of 95% non-condensing. Maximum storage humidity is also 95% non-condensing, and the kit is rated for altitudes up to 1000 m above sea level. Cooling is natural, so no active airflow is required.
Mount the kit to the I/O base per the manufacturer’s documentation, keep spring terminals free of debris, and confirm seating before energizing the panel. For fieldbus-based Momentum systems, note that wiring into networks such as those used across the platform may require an external gateway or connection module — confirm cables and gateways with your supplier before ordering.
Selection Checklist
Before you buy, verify the I/O base type (discrete or analog), the row count you need, and the terminal style your field wiring expects. The 170XTS00301 is a 3-row spring-terminal busbar, CE compliant, packed one unit per package. If your application calls for a different configuration, confirm the correct accessory before committing.
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