1-channel signal conditioner, 24 V DC supply (loop powered), Logic input 19 V DC ... 26.5 V DC, non-polarized, Relay contact output for de-energized to safe function, Test pulse immunity, Up to SIL 3 acc. to IEC/EN 61508, Up to PL e acc. to EN/ISO 13849, Housing width: 20 mm, Number of channels: 1-channel, DTS function (de-energized to safe), Safety Integrity Level (SIL): SIL 3, Systematic capability (SC): SC 3, Rated voltage: 19 ... 30 V DC loop powered, Type: 1 x logic input, Type [2]: 1 x test input