What this terminal module does
The 3RK1903-3ED10: This 130 mm terminal module connects the ET 200S inverter power module IPM25 FS B to the backplane and field wiring — it carries the power and signal paths without a separate supply line connection. It is the mechanical and electrical interface that snaps onto the DIN rail and locks the IPM25 into the I/O rack, so the module's cooling and bus coupling are handled through the terminal base.
Compliance note
Substance prohibitance date is 05/01/2012 — the part complies with RoHS and related substance restrictions effective from that date.