Phoenix Contact 2963954 Safety relay for emergency stop and safety door up to SIL 1 - SIL CL 1 - Cat. 1 - PL c - depending on the application up to SIL 3 - SIL CL 3 - Cat. 4 - PL e - single-channel operation - 4 enabling current paths - US = 24 V AC/DC - pluggable Push-in termin