Allen-Bradley 1769-OW81 Relay Output Module

The Allen-Bradley 1769-OW81 is an eight-point relay output module for the Compact I/O family, enabling a CompactLogix controller to switch external devices via eight relay contacts. The module supports VAC and VDC loads on each channel, allowing a mix of field devices such as pumps, solenoids, valves, indicators, and alarms. It plugs into a 1769 Compact I/O backplane and occupies a single slot in the I/O chassis, communicating with the processor over the standard backplane protocol used by 1769 modules. This configuration is well-suited to applications requiring simple, reliable on/off control for external devices in manufacturing lines, packaging, material handling, and process control tasks. The 1769-OW81 integrates with Rockwell Automation's 1769-series modules and the broader Allen-Bradley ecosystem, ensuring compatibility with compatible controllers and I/O baselines. When planning installation, ensure proper field wiring practices for relay outputs and confirm that the chosen loads and wiring arrangements align with the module's VAC/VDC relay output capabilities.