Safety relay (standalone), inputs: 2-channel wiring with/without detection of shorts across contacts, (PSEN 2.1p/2.2p),outputs: 2 safety outputs, 1 auxiliary output in SC technology, automatic/monitored start, UB = 24 V DC, width: 22.5 mm, plug-in terminals of screw type, connection between several devices, safety gates, feedback loop. 774139