The Westinghouse NL-739H Output Module Power Relay is an 8-point relay output module (Part Number NL-739 / NL-739H) designed for PLC-controlled power switching in industrial automation. It is rack- or panel-mountable and industrial-duty rated, compatible with PLC and distributed control systems for discrete relay outputs in manufacturing equipment, process control machinery, HVAC, and power distribution panels. Common replacements include Allen-Bradley 1771-OW16, Siemens SM322 Relay Output Module, and Schneider Electric BMXDRA0805.
