PNOZ s2 C 24VDC 3 n/o 1 n/c Product ID: 751102 PNOZsigma safety relay (standalone), inputs: 1-channel wiring without detection of shorts across contacts, manual/automaticstart, outputs: 3 N/O, 1 N/C, 1 SC, UB 24 V DC, width: 17.5 mm, plug-in spring-loaded terminals, monitoring of E-STOP, safety gates.