Current Driver/Repeater KFD0-CS-Ex2.51P, Signal type, Isolated Barriers (K-System), 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