1-channel signal conditioner, 24 V DC supply, Logic input 19 V DC ... 26.4 V DC, Recommended connectable voltage 8 V DC ... 60 V DC, Relay contact output for energized to safe function , Line fault transparency (LFT), Diagnostic function, Up to SIL 3 acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 1-channel, Diagnostics function, Line fault transparency, ETS function (energized to safe), Safety Integrity Level (SIL): SIL 3, Systematic capability (SC): SC 3, Rated voltage: 19 ... 26.4 V DC