Power supply LB9006C, Bus coupler, LB (Zone 2, Class I/Div. 2), Power supply for 24 V, Permits vertical or horizontal mounting in Zone 2, Use three power supplies for redundancy, Galvanic isolation to mains, Supply of I/O modules and com units, Mounting in Zone 2, Class I/Div.2 or in the safe area, Non-volatile memory for configuration and parameter settings