Switch Amplifier KFD2-SOT3-Ex2, Signal type, Isolated Barriers (K-System), 2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, 2 passive transistor outputs, Reversible mode of operation, Line fault detection (LFD), Up to SIL 2 (SC 3) acc. to IEC/EN 61508