Safety relay (standalone), inputs: Per pushbutton 1 N/O, 1 N/C, outputs: 3 N/O, 1 N/C, 2 SC, UB = 24 V AC, width: 45 mm, screw terminals integrated, two-hand control relay, http://www.pilz.com simultaneity monitoring with two-hand pushbutton. Safety solutions provider since 2011, We offer Pilz