The 3RK1903-3ED00: The IP20 finger-safe front (per IEC 60529) means the module can be mounted at the front of a control cabinet without additional shrouding — the touch protection prevents accidental contact with live terminals during commissioning or maintenance. This is a standard protection class for ET 200S slices that sit inside an IP54-or-better enclosure. At 130 mm depth, this module extends behind the IPM25 power module to carry the DC link and control wiring. It snaps onto the standard 35 mm DIN rail (EN 50022) and integrates into the ET 200S rail bus — no separate power feed is needed beyond the supply line connection this module provides.
Lifecycle stage is current. Substance prohibitance date is 01.05.2012.