PNOZsigma safety relay (standalone), inputs: incremental encoder, proximity switch, outputs: 2 N/O, 2 N/C, UB: 24 -240 V AC/DC, width: 45 mm, monitoring of standstill, speed, speed range, position, direction, analogue voltage (track S), display handling push & turn, plug-in screw terminals, expansion with PNOZsigma contact expansion.