The Siemens 3RK1402-3CE00-0GE2 is an AS-Interface slimline module with IP20 protection, integrating 4 digital inputs and 4 relay outputs in a 45 mm wide housing. The inputs are PNP-type, rated for 200 mA each, and accept 2- or 3-wire sensors. The relay outputs switch up to 6 A at UC 230 V, making them suitable for direct control of contactors, solenoid valves, or indicator loads without an intermediate interface.
The AS-Interface bus connection uses the integrated profile, so no separate bus coupler is needed for this slave. The relay outputs are electrically isolated from the AS-i network, which simplifies troubleshooting when switching mixed-voltage loads.