Find Allen-Bradley 1771, 1785 and 1747 modules, Siemens S7-300 CPU and I/O modules, Control MicroSystems SCADA field units and Phoenix Contact interface modules, used and new old stock (NOS). Controls engineers and plant maintenance techs use them to keep an older rack running without a full migration.
Browse the full range in Industrial Automation & Controls.
Makers here include Allen-Bradley and Siemens.