HART Transmitter Power Supply, Input Isolator FB3205B3, Occupied slots, Sensor Accessories and Others, 4-channel, Inputs Ex ia, Installation in suitable enclosures in Zone 1, Module can be exchanged under voltage (hot swap), Power supply for 2-wire transmitters with 4 mA ... 20 mA, Supply circuit 15 V (20 mA), Input from active signals of 4-wire transmitters