2-channel isolated barrier, 24 V DC supply (loop powered), Current input/output 0 mA ... 40 mA, I/P or transmitter power supply, Accuracy 1 %, Reverse polarity protection, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 2-channel, Transfer direction: to the field / to the control system, Reverse polarity protection, Safety Integrity Level (SIL): SIL 2, Systematic capability (SC): SC 3, Rated voltage: 4 ... 35 V DC , loop powered, Signal: 2 x 0 ... 40 mA