The Allen-Bradley 1771-ODC Isolated AC Output Module is a 16-channel output card for PLC-5 1771 I/O chassis that switches line-voltage AC loads. Each output is galvanically isolated from the backplane, helping prevent ground loops and noise when driving devices such as relays, contactors, lamps, and other 120 VAC loads, with an operating voltage range of 92–138 VAC. The module’s isolation rating meets UL 508 and CSA C22.2 safety standards, and it integrates into the 1771 I/O family as a compact, plug-in solution for expanding AC output capability in PLC-5 systems.
