SMART Current Driver KCD2-SCD-Ex1.ES, Signal type, Isolated Barriers (K-System), 1-channel isolated barrier, 24 V DC supply (Power Rail), Current output up to 650 ?? load, HART-IP and valve positioner, Line fault detection (LFD), Housing width 12.5 mm, Up to SIL 3 acc. to IEC/EN 61508