Safety relay (standalone), inputs: 2-channel wiring with detection of shorts across contacts, outputs: 2 N/O, 1 SC, manualstart, UB = 24 V DC, width: 22.5 mm, spring-loaded terminals not plug-in, safety relay for evaluating sensors with 2 SC outputs, compact height. http://www.pilz.com Safety solutions provider since 2011, We offer Pilz