Safety relay to emergency stop and safety door monitoring up to SIL 3 or Cat. 4, PL and EN ISO 13849, one or two operating channels 8 release circuits, 24V AC / DC rated input voltage, maximum current in steady 6A, IP54 degree of protection, 192.1g weight. Model 24UC / ESAM4 / 8X1 / 1X2. Phoenix Contact.