The Siemens 3RG7212-6MC00 is a SIMATIC PXO630 K80 thru-beam sensor receiver, part of the proximity detection switch family. It operates on UC 20-230V supply, provides a relay C-contact antivalent output, and includes an adjustable timer (0.1-10s). The housing measures 83x61x25 mm with a PG11 cable gland, rated IP67, and achieves a sensing range of 50 meters.
The UC 20-230V supply covers both AC and DC control voltages common in industrial panels — no separate power supply variant needed. The 50 m thru-beam range suits long conveyor or gantry applications where reflector-based sensors fall short. Relay output with antivalent C-contact gives both NO and NC in one package, simplifying PLC input wiring. The IP67 rating allows washdown or outdoor installation without an extra enclosure. Timer adjustable from 0.1 to 10 s handles delayed drop-out for part-present gating or jam detection.