1-channel isolated barrier, Universal usage at different power supplies, Dry contact or NAMUR inputs, Relay contact output, Fault relay contact output, Line fault detection (LFD), Reversible mode of operation, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 1-channel, Safety Integrity Level (SIL): SIL 2, Systematic capability (SC): SC 3, Rated voltage: 19 ... 30 V DC / 90 ... 253 V AC 50 ... 60 Hz, Field device: NAMUR sensor, Field device [2]: volt-free contact