PSR-SPP-42-48UC/ESAM4/3X1/1X2B - Safety relay for emergency stop and safety door monitoring up to SIL 3 or Cat. 4, PL e in accordance with EN ISO 13849, 1- or 2-channel operation, 3 enabling current paths, nominal input voltage: 42 V AC/DC ... 48 V AC/DC, plug-in Push-in terminal block