Switch Amplifier KFD2-SR3-Ex2.2S, Signal type, Isolated Barriers (K-System), 2-channel isolated barrier, 24 V DC supply (Power Rail), Dry contact or NAMUR inputs, Usable as signal splitter (1 input and 2 outputs), 2 x 2 relay contact outputs with AND logic, Reversible mode of operation, Line fault detection (LFD)