PNOZ s6.1 48-240VACDC 3 n/o 1 n/c PILZ Product ID: 750156 PNOZsigma safety relay (standalone), two-hand control relay, inputs: Per pushbutton 1 N/O, 1 N/C, outputs: 3 N/O, 1 N/C, 1 SC, UB =48 – 240 V AC/DC, width: 22.5 mm, plug-in screw terminals, simultaneity monitoring with two-hand pushbutton.